DEPLOY BOT : 💙 Auto-Generate PUBLIC LIVE ISO [skip ci]

X-CI-Metadata: master@131b29e at 2025-10-14T22:23:31Z on f4002627fb64

Generated at : 2025-10-14T22:23:31Z
Runner Host  : f4002627fb64
Workflow ID  : 💙 Generating a PUBLIC Live ISO.
Git Commit   : 131b29e HEAD -> master

.archive/.0000_lib_usage.sh

@@ -0,0 +1,142 @@
+#!/bin/bash
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.live.builder
+# SPDX-Security-Contact: security@coresecret.eu
+
+#######################################
+# Usage Wrapper CISS.debian.live.builder
+# Globals:
+#   none
+# Arguments:
+#   $0: Script name
+#######################################
+usage() {
+  clear
+  cat << EOF
+$(echo -e "\e[92mCISS.debian.live.builder\e[0m")
+$(echo -e "\e[92mMaster V8.13.142.2025.10.14\e[0m")
+$(echo -e "\e[92mA lightweight Shell Wrapper for building a hardened Debian Live ISO Image.\e[0m")
+
+$(echo -e "\e[97m(c) Marc S. Weidner, 2018 - 2025\e[0m")
+$(echo -e "\e[97m(p) Centurion Press, 2024 - 2025\e[0m")
+
+"${0} <option>", where <option> is one or more of:
+
+$(echo -e "\e[97m  --help, -h\e[0m")
+    What you're looking at.
+
+$(echo -e "\e[97m  --autobuild=*, -a=*\e[0m")
+    Headless mode. Skip the dialog wrapper, provider note screen and interactive kernel
+    selector dialog. Change '*' to your desired Linux kernel and trim the
+    'linux-image-' string to select a specific kernel, e.g. '--autobuild=6.12.30+bpo-amd64'.
+
+$(echo -e "\e[97m  --architecture <STRING> one of <amd64 | arm64>\e[0m")
+    A string reflecting the architecture of the Live System.
+    MUST be provided.
+
+$(echo -e "\e[97m  --build-directory </path/to/build_directory>\e[0m")
+    Where the Debian Live Build Image should be generated.
+    MUST be provided.
+
+$(echo -e "\e[97m  --change-splash <STRING> one of <club | hexagon>\e[0m")
+    A string reflecting the GRub Boot Screen Splash you want to use.
+    If omitted defaults to "./.archive/background/club.png".
+
+$(echo -e "\e[97m  --cdi (Experimental Feature)\e[0m")
+    This option generates a boot menu entry to start the forthcoming
+    'CISS.debian.installer', which will be executed after
+    the system has successfully booted up.
+
+$(echo -e "\e[97m  --contact, -c\e[0m")
+    Displays contact information of the author.
+
+$(echo -e "\e[97m  --control <INTEGER>\e[0m")
+    An integer that reflects the version of your Live ISO Image.
+    MUST be provided.
+
+$(echo -e "\e[97m  --debug\e[0m")
+    Enables debug logging for the main program routine. Detailed logging
+    information are written to "/tmp/ciss_live_builder_$$.log"
+
+$(echo -e "\e[97m  --dhcp-centurion\e[0m")
+    If a DHCP lease is provided, the provider's nameserver will be overridden,
+    and only the hardened, privacy-focused Centurion DNS servers will be used:
+      - https://dns01.eddns.eu/
+      - https://dns02.eddns.de/
+      - https://dns03.eddns.eu/
+
+$(echo -e "\e[97m  --jump-host <IP | IP | ... >\e[0m")
+    Provide up to 10 IPs for /etc/host.allow whitelisting of SSH access.
+    Could be either IPv4 and / or IPv6 addresses and / or CCDIR notation.
+    If provided, than it MUST be a <SPACE> separated list.
+    IPv6 addresses MUST be encapsulated with [], e.g., [1234::abcd]/64.
+
+$(echo -e "\e[97m  --log-statistics-only\e[0m")
+    Provides statistic only after successful building a
+    CISS.debian.live-ISO. While enabling "--log-statistics-only"
+    the argument "--build-directory" MUST be provided while
+    all further options MUST be omitted.
+
+$(echo -e "\e[97m  --provider-netcup-ipv6\e[0m")
+    Activates IPv6 support for Netcup Root Server. One unique
+    IPv6 address MUST be provided in this case and MUST be encapsulated
+    with [], e.g., [1234::abcd].
+
+$(echo -e "\e[97m  --renice-priority <PRIORITY>\e[0m")
+    Reset the nice priority value of the script and all its children
+    to the desired <PRIORITY>. MUST be an integer (between "-19" and 19).
+    Negative (higher) values MUST be enclosed in double quotes '"'.
+
+$(echo -e "\e[97m  --reionice-priority <CLASS> <PRIORITY>\e[0m")
+    Reset the ionice priority value of the script and all its children
+    to the desired <CLASS>. MUST be an integer:
+      1: realtime
+      2: best-effort
+      3: idle
+    Defaults to '2'.
+    Whereas <PRIORITY> MUST be an integer as well between:
+      0: highest priority and
+      7: lowest priority.
+    Defaults to '4'.
+    A real-time I/O process can significantly slow down other processes
+    or even cause them to starve if it continuously requests I/O.
+
+$(echo -e "\e[97m  --root-password-file </path/to/password.txt>\e[0m")
+    Password file for 'root', if given, MUST be a string of 20 to 64 characters,
+    and MUST NOT contain the special character '"'.
+    If the argument is omitted, no further login authentication is required for
+    the local console. The root password is hashed with an 16 Byte '/dev/random'
+    generated SALT and SHA512 Hashing function and 8,388,608 rounds. Immediately
+    after Hash generation all Variables containing plain password fragments are
+    deleted. Password file SHOULD be '0400' and 'root:root' and is deleted without
+    further prompt after password hash has been successfully generated via:
+    'shred -vfzu 5 -f'.
+    No tracing of any plain text password fragment in any debug log.
+
+$(echo -e "\e[97m  --ssh-port <INTEGER>\e[0m")
+    The desired Port SSH should listen to.
+    If not provided defaults to Port 22.
+
+$(echo -e "\e[97m  --ssh-pubkey </path/to/.ssh/>\e[0m")
+    Imports the SSH Public Key(s) from the FILE 'authorized_keys' of the
+    specified PATH into the Live ISO. MUST be provided.
+
+$(echo -e "\e[97m  --version, -v\e[0m")
+    Displays version of ${0}.
+
+$(echo -e "\e[93m💡 Notes:\e[0m")
+🔵 You MUST be 'root' to run this script.
+
+$(echo -e "\e[95m💷 Please consider donating to my work at:\e[0m")
+$(echo -e "\e[95m🌐 https://coresecret.eu/spenden/         \e[0m")
+
+EOF
+}
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

.archive/0003_install_backports.chroot

@@ -3,23 +3,35 @@
 # SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
-# sleep 1
 
-# TODO: MUST be uncommented
-cd /root/git
-# git clone https://git.coresecret.dev/msw/CISS.debian.installer.git
+DEBIAN_FRONTEND=noninteractive \
+  apt-get update && \
+    DEBIAN_FRONTEND=noninteractive \
+      apt-get install -y --no-install-recommends \
+        -o Dpkg::Options::="--force-confdef" \
+        -o Dpkg::Options::="--force-confold" \
+        -t bookworm-backports \
+        btrfs-progs \
+        curl \
+        debootstrap \
+        iproute2 \
+        ncat \
+        nmap \
+        ssh \
+        systemd \
+        systemd-sysv \
+        whois
 
 printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
-# sleep 1
 
 exit 0
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

.archive/0005_tmpfile_dublette.chroot

@@ -0,0 +1,72 @@
+#!/bin/bash
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.live.builder
+# SPDX-Security-Contact: security@coresecret.eu
+set -Ceuo pipefail
+
+printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
+
+# Purpose: Copy vendor 'legacy.conf' to '/etc/tmpfiles.d' and drop duplicate '/run/lock' lines.
+
+#######################################
+# Simple error terminal logger.
+# Arguments:
+#   None
+#######################################
+log() { printf '[tmpfiles-fix] %s\n' "$*" >&2; }
+
+### Locate vendor 'legacy.conf' (The path can vary).
+declare vendor=""
+
+for p in /usr/lib/tmpfiles.d/legacy.conf /lib/tmpfiles.d/legacy.conf; do
+
+  if [[ -f "${p}" ]]; then vendor="${p}"; break; fi
+
+done
+
+if [[ -z "${vendor}" ]]; then
+  log "WARN: vendor legacy.conf not found; creating a minimal override"
+  install -D -m 0644 /dev/null /etc/tmpfiles.d/legacy.conf
+
+else
+
+  install -D -m 0644 "${vendor}" /etc/tmpfiles.d/legacy.conf
+
+fi
+
+### Deduplicate: keep only the FIRST 'd /run/lock ' definition, drop subsequent ones.
+# shellcheck disable=SC2155
+declare tmpdir="$(mktemp -d)"
+declare out="${tmpdir}/legacy.conf"
+
+awk '
+BEGIN{seen=0}
+{
+  # Preserve everything by default
+  keep=1
+  # Match tmpfiles "d /run/lock ..." (allowing variable spacing and case of directive)
+  if ($1 ~ /^[dD]$/ && $2 == "/run/lock") {
+    if (seen==1) { keep=0 } else { seen=1 }
+  }
+  if (keep) print
+}' /etc/tmpfiles.d/legacy.conf >| "${out}"
+
+### Install the sanitized file atomically.
+install -m 0644 -o root -g root "${out}" /etc/tmpfiles.d/legacy.conf
+rm -rf -- "${tmpdir}"
+
+log "Deduplicated /etc/tmpfiles.d/legacy.conf (kept only first /run/lock entry)."
+
+command -v systemd-tmpfiles >/dev/null 2>&1 && systemd-tmpfiles --create --prefix /run/lock || true
+
+printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
+
+exit 0
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

.archive/icon.lib

@@ -2,41 +2,54 @@
 # SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
-# SPDX-LicenseComment: This file is part of the CISS.hardened.installer framework.
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 ✅
-🔧
+❌
+⚠️
+🚫
+🔐
+🔒
 🔑
+✍️
 🖥️
+🔄
+🔁
+🌌
+🔵
+💙
+🔍
+💡
+🔧
 🛠️
+🏗
+⚙️
+📐
+🧪
+📩
 📥
 📦
 📑
 📂
-🔒
-🔐
-⚙️
-❌
-🌌
+📀
 🎉
-🖥️
-🔑
-📂
-📩
-🔵
 😺
-🧪
+📉
 📊
 🧾
-📀
-📉
-⏱
+📋
+🕑
 🧠
 📅
-💙
-🚫
-# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh
+🎯
+🌐
+🔗
+💬
+☢️
+☣️
+•
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

.editorconfig

@@ -2,7 +2,7 @@
 # SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
@@ -25,6 +25,10 @@ charset = utf-8
 insert_final_newline = true
 trim_trailing_whitespace = true
 
+[{makefile,*.mk}]
+indent_style = tab
+tab_width    = 8
+
 [*.md]
 end_of_line = lf
 # Markdown benefits from a final newline for POSIX tools

.gitea/ISSUE_TEMPLATE/ISSUE_TEMPLATE.yaml

@@ -2,7 +2,7 @@
 # SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
@@ -12,9 +12,7 @@
 name: "Bug Report"
 about: "Create a report to help us improve"
 title: "[BUG | possible BUG]: "
-labels: "bug:to be reproduced,bug:needs triage/confirmation"
-assignees: ""
----
+assignees: "MSW"
 body:
   # Instructions for the reporter
   - type: markdown
@@ -27,7 +25,7 @@ body:
     attributes:
       label: "Version"
       description: "Which version are you running? Use `./ciss_live_builder.sh -v`."
-      placeholder: "e.g., Master V8.02.080.2025.05.19"
+      placeholder: "e.g., Master V8.13.142.2025.10.14"
     validations:
       required: true
 

.gitea/ISSUE_TEMPLATE/PULL_REQUEST_TEMPLATE.yaml

@@ -2,7 +2,7 @@
 # SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
@@ -12,7 +12,7 @@
 name: "Standard-PR"
 about: "Please answer the following questions before submitting the PR."
 title: "[PR]: "
-ref: "master"
+assignees: "MSW"
 body:
   - type: markdown
     attributes:
@@ -48,8 +48,8 @@ body:
       options:
         - label: "My edits contain no tabs, use two-space indentation, and no trailing whitespace"
         - label: "I have read ~/docs/CONTRIBUTING.md and ~/docs/CODING_CONVENTION.md"
-        - label: "I have tested this fix or improvement on ≥2 VMs without issues"
-        - label: "I have tested this new feature on ≥2 VMs with and without it to avoid side effects"
+        - label: "I have tested this fix or improvement on >=2 VMs without issues"
+        - label: "I have tested this new feature on >=2 VMs with and without it to avoid side effects"
         - label: "Documentation and/or 'usage()' and/or 'arg_parser' have been updated for the new feature"
         - label: "I added myself to ~/docs/CREDITS.md (alphabetical) and updated ~/docs/CHANGELOG.md"
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=yaml

.gitea/TODO/dockerfile

@@ -0,0 +1,69 @@
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.live.builder
+# SPDX-Security-Contact: security@coresecret.eu
+
+# Version Master V8.13.142.2025.10.14
+
+FROM debian:bookworm
+
+ENV DEBIAN_FRONTEND=noninteractive
+
+RUN apt-get update -y \
+    && apt-get upgrade -y \
+    && apt-get install -y \
+      apt-transport-https \
+      apt-utils \
+      bash \
+      ca-certificates \
+      gnupg \
+      openssl \
+      sudo \
+    && apt-get update -y \
+    && apt-get upgrade -y \
+    && apt-get clean \
+    && apt-get autoremove --purge -y \
+    && rm -rf /var/lib/apt/lists/*
+
+RUN mkdir -p /etc/apt/sources.list.d && touch /etc/apt/sources.list.d/bookworm-backports.list \
+    && echo 'deb https://deb.debian.org/debian bookworm-backports main' >| /etc/apt/sources.list.d/bookworm-backports.list \
+    && apt-get update -y \
+    && apt-get upgrade -y \
+    && apt-get install -y --no-install-recommends \
+      autoconf \
+      automake \
+      build-essential \
+      cryptsetup \
+      curl \
+      debootstrap \
+      dosfstools \
+      efibootmgr \
+      gettext \
+      git \
+      haveged \
+      libtool \
+      live-build \
+      parted \
+      pkg-config \
+      ssh \
+      ssl-cert \
+      texinfo \
+      wget \
+      whois \
+    && apt-get clean \
+    && apt-get autoremove --purge -y \
+    && rm -rf /var/lib/apt/lists/*
+
+RUN useradd --create-home --shell /bin/bash runner
+
+WORKDIR /home/runner
+
+USER runner
+
+ENTRYPOINT ["bash"]

.gitea/TODO/render-md-to-html.yaml

@@ -2,16 +2,16 @@
 # SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
-# SPDX-LicenseComment: This file is part of the CISS.hardened.installer framework.
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-### Version Master V8.03.127.2025.06.02
+# Version Master V8.13.142.2025.10.14
 
-name: Render README.md to README.html
+name: 🔁 Render README.md to README.html.
 
 permissions:
   contents: write
@@ -21,18 +21,19 @@ on:
     branches:
       - master
     paths:
-      - "**/*.md"
+      - "README.md"
       - '.gitea/properties/lua/linkfix.lua'
 
 jobs:
   render-md-to-html:
-    name: Render README.md to README.html
+    name: 🔁 Render README.md to README.html.
     runs-on: ubuntu-latest
 
     steps:
-      - name: Preparing SSH Setup, SSH Deploy Key, Known Hosts, .config.
+      - name: ⚙️ Preparing SSH Setup, SSH Deploy Key, Known Hosts, .config.
         shell: bash
         run: |
+          set -euo pipefail
           rm -rf ~/.ssh && mkdir -m700 ~/.ssh
 
           ### Private Key
@@ -55,24 +56,27 @@ jobs:
           chmod 600 ~/.ssh/config
 
       ### https://github.com/actions/checkout/issues/1843
-      - name: Using manual clone via SSH to circumvent Gitea SHA-256 object issues.
+      - name: 🛠️ Using manual clone via SSH to circumvent Gitea SHA-256 object issues.
         shell: bash
         env:
           ### GITHUB_REF_NAME contains the branch name from the push event.
           GITHUB_REF_NAME: ${{ github.ref_name }}
         run: |
+          set -euo pipefail
           git clone --branch "${GITHUB_REF_NAME}" ssh://git@git.coresecret.dev:42842/msw/CISS.debian.live.builder.git .
           git fetch --unshallow || echo "Nothing to fetch - already full clone."
 
-      - name: Cleaning the workspace.
+      - name: 🛠️ Cleaning the workspace.
         shell: bash
         run: |
+          set -euo pipefail
           git reset --hard
           git clean -fd
 
-      - name: Importing the 'CI PGP DEPLOY ONLY' key.
+      - name: ⚙️ Importing the 'CI PGP DEPLOY ONLY' key.
         shell: bash
         run: |
+          set -euo pipefail
           ### GPG-Home relative to the Runner Workspace to avoid changing global files.
           export GNUPGHOME="$(pwd)/.gnupg"
           mkdir -m 700 "${GNUPGHOME}"
@@ -82,9 +86,10 @@ jobs:
           KEY_ID=$(gpg --list-keys --with-colons | awk -F: '/^pub:/ {print $5}')
           echo "trust-model always" >| "${GNUPGHOME}/gpg.conf"
 
-      - name: Configuring Git for signed CI/DEPLOY commits.
+      - name: ⚙️ Configuring Git for signed CI/DEPLOY commits.
         shell: bash
         run: |
+          set -euo pipefail
           export GNUPGHOME="$(pwd)/.gnupg"
           git config user.name "Marc S. Weidner BOT"
           git config user.email "msw+bot@coresecret.dev"
@@ -92,43 +97,47 @@ jobs:
           git config gpg.program gpg
           git config gpg.format openpgp
 
-      - name: Convert APT sources to HTTPS.
+      - name: ⚙️ Convert APT sources to HTTPS.
         shell: bash
         run: |
+          set -euo pipefail
           sed -i 's|http://\(archive\.ubuntu\.com\|security\.ubuntu\.com\)|https://\1|g' /etc/apt/sources.list
           sed -i 's|http://\(archive\.ubuntu\.com\|security\.ubuntu\.com\)|https://\1|g' /etc/apt/sources.list.d/*.list || true
 
-      - name: Install Pandoc & dependencies.
+      - name: 🛠️ Install Pandoc & Dependencies.
         shell: bash
         run: |
+          set -euo pipefail
           sudo apt-get update
           sudo apt-get install -y pandoc
 
-      #- name: Ensure .html/ directory exists.
-      #  shell: bash
-      #  run:
-      #    mkdir -p .html
+      - name: ⚙️ Ensure .html/ directory exists.
+        shell: bash
+        run:
+          mkdir -p .html
 
-      #- name: Render *.md to full standalone HTML.
-      #  shell: bash
-      #  run: |
-      #    find . \( -path "*/.*" -prune \) -o -type f -name "*.md" -print  | while read file; do
-      #      out=$(basename "${file%.md}.html")
-      #      pandoc -s "${file}" \
-      #        --metadata title="${file}" \
-      #        --metadata lang=en \
-      #        -f gfm+footnotes \
-      #        -t html5 \
-      #        --no-highlight \
-      #        --strip-comments \
-      #        --wrap=none \
-      #        --lua-filter=.gitea/properties/lua/linkfix.lua \
-      #        -o .html/"${out}"
-      #    done
-
-      - name: Extract HTML fragment for Gitea for *.md.
+      - name: 🛠️ Render *.md to full standalone HTML.
         shell: bash
         run: |
+          set -euo pipefail
+          find . \( -path "*/.*" -prune \) -o -type f -name "*.md" -print  | while read file; do
+            out=$(basename "${file%.md}.html")
+            pandoc -s "${file}" \
+              --metadata title="${file}" \
+              --metadata lang=en \
+              -f gfm+footnotes \
+              -t html5 \
+              --no-highlight \
+              --strip-comments \
+              --wrap=none \
+              --lua-filter=.gitea/properties/lua/linkfix.lua \
+              -o .html/"${out}"
+          done
+
+      - name: 🛠️ Extract HTML fragment for Gitea for *.md.
+        shell: bash
+        run: |
+          set -euo pipefail
           find . \( -path "*/.*" -prune \) -o -type f -name "README.md" -print | while read file; do
             out="${file%.md}.html"
             pandoc "${file}" \
@@ -141,7 +150,16 @@ jobs:
               -o "${out}"
           done
 
-      - name: Sync with remote before commit to avoid Job Race Conditions.
+      - name: 🚧 Stash local changes (including untracked).
+        shell: bash
+        env:
+          GIT_SSH_COMMAND: "ssh -p 42842"
+        run: |
+          set -euo pipefail
+          ### Temporarily store any local modifications or untracked files.
+          git stash push --include-untracked -m "ci-temp" || echo "✔️ Nothing to stash."
+
+      - name: 🔄 Sync with remote before commit using merge strategy.
         shell: bash
         env:
           GIT_SSH_COMMAND: "ssh -p 42842"
@@ -149,39 +167,75 @@ jobs:
           set -euo pipefail
           export GNUPGHOME="$(pwd)/.gnupg"
 
-          echo "🔒 Stashing local changes (if any) ..."
-          git stash push --include-untracked --message "pre-rebase stash" || true
-
-          echo "🔄 Fetching and rebasing from origin/master ..."
+          echo "🔄 Fetching origin/master ..."
           git fetch origin master
-          git rebase origin/master
 
-          echo "🎯 Restoring local changes from stash (if any) ..."
-          git stash pop || echo "ℹ️ Nothing to pop or merge conflict during stash pop."
+          echo "🔁 Merging origin/master into current branch ..."
+          git merge --no-edit origin/master || echo "✔️ Already up to date or fast-forward."
 
-          echo "📋 Current status after rebase : "
+          echo "📋 Post-merge status :"
           git status
           git log --oneline -n 5
 
-      - name: Stage generated files.
+      - name: 🛠️ Restore stashed changes.
         shell: bash
         env:
           GIT_SSH_COMMAND: "ssh -p 42842"
         run: |
-          git add '*.html'
+          set -euo pipefail
+          ### Apply previously stashed changes.
+          git stash pop || echo "✔️ Nothing to pop."
 
-      - name: Commit and Sign changes.
+      - name: 📦 Stage generated files.
         shell: bash
         env:
           GIT_SSH_COMMAND: "ssh -p 42842"
         run: |
+          set -euo pipefail
+          git add *.html  || echo "✔️ Nothing to add."
+
+      - name: 🔑 Commit and sign changes with CI metadata.
+        shell: bash
+        env:
+          GIT_SSH_COMMAND: "ssh -p 42842"
+        run: |
+          set -euo pipefail
           export GNUPGHOME="$(pwd)/.gnupg"
-          git commit -S -m "DEPLOY BOT: Auto-Generate *.html from *.md [skip ci]" || echo "No Changes, nothing to Sign or to Commit."
 
-      - name: Push back to Repository.
+          if git diff --cached --quiet; then
+            echo "✔️ No staged changes to commit."
+          else
+            echo "📝 Committing changes with GPG signature ..."
+
+            ### CI Metadata
+            TIMESTAMP_UTC="$(date -u +'%Y-%m-%dT%H:%M:%SZ')"
+            HOSTNAME="$(hostname -f || hostname)"
+            GIT_SHA="$(git rev-parse --short HEAD)"
+            GIT_REF="$(git symbolic-ref --short HEAD || echo detached)"
+            WORKFLOW_ID="${GITHUB_WORKFLOW:-render-md-to-html.yaml}"
+            CI_HEADER="X-CI-Metadata: ${GIT_REF}@${GIT_SHA} at ${TIMESTAMP_UTC} on ${HOSTNAME}"
+
+            COMMIT_MSG="DEPLOY BOT   : 🔁 Auto-Generate *.html from *.md [skip ci]
+
+          ${CI_HEADER}
+
+          Generated at : ${TIMESTAMP_UTC}
+          Runner Host  : ${HOSTNAME}
+          Workflow ID  : ${WORKFLOW_ID}
+          Git Commit   : ${GIT_SHA} HEAD -> ${GIT_REF}
+          "
+
+            echo "🔏 Commit message :"
+            echo "${COMMIT_MSG}"
+            git commit -S -m "${COMMIT_MSG}"
+          fi
+
+      - name: 🔁 Push back to repository.
         shell: bash
         env:
           GIT_SSH_COMMAND: "ssh -p 42842"
         run: |
+          set -euo pipefail
+          echo "📤 Pushing changes to ${GITHUB_REF_NAME} ..."
           git push origin HEAD:${GITHUB_REF_NAME}
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=yaml

.gitea/trigger/t_generate_PRIVATE_trixie_0.yaml

@@ -0,0 +1,15 @@
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-08-22; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.live.builder
+# SPDX-Security-Contact: security@coresecret.eu
+
+build:
+  counter: 1023
+  version: V8.13.142.2025.10.14
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=yaml

.gitea/trigger/t_generate_PRIVATE_trixie_1.yaml

@@ -0,0 +1,15 @@
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-08-22; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.live.builder
+# SPDX-Security-Contact: security@coresecret.eu
+
+build:
+  counter: 1023
+  version: V8.13.142.2025.10.14
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=yaml

.gitea/trigger/t_generate_PUBLIC.yaml

@@ -2,7 +2,7 @@
 # SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
@@ -10,6 +10,6 @@
 # SPDX-Security-Contact: security@coresecret.eu
 
 build:
-  counter: 1024
-  version: V8.03.132.2025.06.02
+  counter: 1023
+  version: V8.13.142.2025.10.14
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=yaml

.gitea/trigger/t_generate_dns.yaml

@@ -2,7 +2,7 @@
 # SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
@@ -10,6 +10,6 @@
 # SPDX-Security-Contact: security@coresecret.eu
 
 build:
-  counter: 1024
-  version: V8.03.127.2025.06.02
+  counter: 1023
+  version: V8.13.142.2025.10.14
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=yaml

.gitea/workflows/generate_PRIVATE_trixie_0.yaml

@@ -0,0 +1,447 @@
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-08-22; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.live.builder
+# SPDX-Security-Contact: security@coresecret.eu
+
+# Version Master V8.13.142.2025.10.14
+
+name: 🔐 Generating a Private Live ISO TRIXIE.
+
+defaults:
+  run:
+    shell: bash
+
+permissions:
+  contents: write
+
+on:
+  push:
+    branches:
+      - master
+    paths:
+      - '.gitea/trigger/t_generate_PRIVATE_trixie_0.yaml'
+
+jobs:
+  generate-private-cdlb-trixie:
+    name: 🔐 Generating a Private Live ISO TRIXIE.
+    runs-on: cdlb.trixie
+
+    container:
+      image: debian:trixie
+
+    steps:
+      - name: 🛠️ Basic Image Setup.
+        shell: bash
+        run: |
+          export DEBIAN_FRONTEND=noninteractive
+          apt-get update
+          apt-get upgrade -y
+          apt-get install -y --no-install-recommends \
+            apt-utils \
+            bash \
+            ca-certificates \
+            curl \
+            git \
+            gnupg \
+            openssh-client \
+            openssl \
+            perl \
+            sudo \
+            util-linux
+
+      - name: ⚙️ Check GnuPG Version.
+        shell: bash
+        run: |
+          gpg --version
+
+      - name: ⚙️ Preparing SSH Setup, SSH Deploy Key, Known Hosts, .config.
+        shell: bash
+        run: |
+          set -euo pipefail
+          var_wait=$(( RANDOM % 33 ))
+          printf "⏳ Waiting %s seconds to desynchronize parallel workflows...\n" "${var_wait}"
+          sleep "${var_wait}"
+
+          rm -rf ~/.ssh && mkdir -m700 ~/.ssh
+
+          ### Private Key
+          echo "${{ secrets.SSH_MSW_DEPLOY_CORESECRET_DEV }}" >| ~/.ssh/id_ed25519
+          chmod 600 ~/.ssh/id_ed25519
+
+          ### Scan git.coresecret.dev to fill ~/.ssh/known_hosts
+          ssh-keyscan -p 42842 git.coresecret.dev >| ~/.ssh/known_hosts
+          chmod 600 ~/.ssh/known_hosts
+
+          ### Generate SSH Config for git.coresecret.dev Custom-Port
+          cat <<EOF >| ~/.ssh/config
+          Host git.coresecret.dev
+            HostName git.coresecret.dev
+            Port 42842
+            IdentityFile ~/.ssh/id_ed25519
+            StrictHostKeyChecking yes
+            UserKnownHostsFile ~/.ssh/known_hosts
+          EOF
+          chmod 600 ~/.ssh/config
+
+      ### https://github.com/actions/checkout/issues/1843
+      - name: 🛠️ Using manual clone via SSH to circumvent Gitea SHA-256 object issues.
+        shell: bash
+        env:
+          ### GITHUB_REF_NAME contains the branch name from the push event.
+          GITHUB_REF_NAME: ${{ github.ref_name }}
+        run: |
+          git clone --branch "${GITHUB_REF_NAME}" ssh://git@git.coresecret.dev:42842/msw/CISS.debian.live.builder.git .
+          git fetch --unshallow || echo "Nothing to fetch - already full clone."
+
+      - name: 🛠️ Cleaning the workspace.
+        shell: bash
+        run: |
+          git reset --hard
+          git clean -fd
+
+      - name: ⚙️ Importing the 'CI PGP DEPLOY ONLY' key.
+        shell: bash
+        run: |
+          set -euo pipefail
+          ### GPG-Home relative to the Runner Workspace to avoid changing global files.
+          export GNUPGHOME="$(pwd)/.gnupg"
+          mkdir -m 700 "${GNUPGHOME}"
+          echo "${{ secrets.PGP_PUBKEY_CENTURION_ROOT_2025_X448 }}" >| centurion-root.PUB.asc
+          gpg --batch --import centurion-root.PUB.asc
+          echo "${{ secrets.PGP_MSW_DEPLOY_CORESECRET_DEV }}" >| ci-bot.sec.asc
+          gpg --batch --import ci-bot.sec.asc
+          ### Trust the key automatically
+          KEY_ID=$(gpg --list-keys --with-colons | awk -F: '/^pub:/ {print $5}')
+          echo "trust-model always" >| "${GNUPGHOME}/gpg.conf"
+
+      - name: ⚙️ Configuring Git for signed CI/DEPLOY commits.
+        shell: bash
+        run: |
+          set -euo pipefail
+          export GNUPGHOME="$(pwd)/.gnupg"
+          git config user.name "Marc S. Weidner BOT"
+          git config user.email "msw+bot@coresecret.dev"
+          git config commit.gpgsign true
+          git config gpg.program gpg
+          git config gpg.format openpgp
+
+      - name: ⚙️ Preparing the build environment.
+        shell: bash
+        run: |
+          set -euo pipefail
+          mkdir -p /opt/config
+          mkdir -p /opt/livebuild
+          touch /opt/config/password.txt && chmod 0600 /opt/config/password.txt
+          touch /opt/config/authorized_keys && chmod 0600 /opt/config/authorized_keys
+          echo "${{ secrets.CISS_DLB_ROOT_PWD }}" >| /opt/config/password.txt
+          echo "${{ secrets.CISS_DLB_ROOT_SSH_PUBKEY }}" >| /opt/config/authorized_keys
+
+      - name: 🔧 Render live hook with secrets.
+        shell: bash
+        working-directory: ${{ github.workspace }}
+        env:
+          ED25519_PRIV:        ${{ secrets.CISS_DLB_SSH_HOST_ED25519_KEY }}
+          ED25519_PUB:         ${{ secrets.CISS_DLB_SSH_HOST_ED25519_KEY_PUB }}
+          RSA_PRIV:            ${{ secrets.CISS_DLB_SSH_HOST_RSA_KEY }}
+          RSA_PUB:             ${{ secrets.CISS_DLB_SSH_HOST_RSA_KEY_PUB }}
+          CISS_PRIMORDIAL:     ${{ secrets.CISS_PRIMORDIAL_PRIVATE }}
+          CISS_PRIMORDIAL_PUB: ${{ secrets.CISS_PRIMORDIAL_PUBLIC }}
+        run: |
+          set -Ceuo pipefail
+          umask 077
+
+          REPO_ROOT="$(git rev-parse --show-toplevel 2>/dev/null || pwd -P)"
+
+          TPL="${REPO_ROOT}/config/hooks/live/9935_hardening_ssh.chroot.tmpl"
+          OUT="${REPO_ROOT}/config/hooks/live/9935_hardening_ssh.chroot"
+          ID_OUT="${REPO_ROOT}/config/includes.chroot/root/.ssh/id_2025_ed25519_ciss_primordial"
+          ID_OUT_PUB="${REPO_ROOT}/config/includes.chroot/root/.ssh/id_2025_ed25519_ciss_primordial.pub"
+
+          if [[ ! -f "${TPL}" ]]; then
+            echo "Template not found: ${TPL}"
+            echo "::group::Tree of config/hooks/live"
+            ls -la "${REPO_ROOT}/config/hooks/live" || true
+            echo "::endgroup::"
+            exit 2
+          fi
+
+          export ED25519_PRIV="${ED25519_PRIV//$'\r'/}"
+          export ED25519_PUB="${ED25519_PUB//$'\r'/}"
+          export RSA_PRIV="${RSA_PRIV//$'\r'/}"
+          export RSA_PUB="${RSA_PUB//$'\r'/}"
+          export CISS_PRIMORDIAL="${CISS_PRIMORDIAL//$'\r'/}"
+          export CISS_PRIMORDIAL_PUB="${CISS_PRIMORDIAL_PUB//$'\r'/}"
+
+          (
+          cat << EOF >| "${ID_OUT}"
+          ${CISS_PRIMORDIAL}
+          EOF
+          ) && chmod 0600 "${ID_OUT}"
+          if [[ -f "${ID_OUT}" ]]; then
+            echo "Written: ${ID_OUT}"
+          else
+            echo "Error: ${ID_OUT} not written."
+          fi
+
+          (
+          cat << EOF >| "${ID_OUT_PUB}"
+          ${CISS_PRIMORDIAL_PUB}
+          EOF
+          ) && chmod 0600 "${ID_OUT_PUB}"
+          if [[ -f "${ID_OUT_PUB}" ]]; then
+            echo "Written: ${ID_OUT_PUB}"
+          else
+            echo "Error: ${ID_OUT_PUB} not written."
+          fi
+
+          perl -0777 -pe '
+            BEGIN{
+              $ed=$ENV{ED25519_PRIV}; $edpub=$ENV{ED25519_PUB};
+              $rsa=$ENV{RSA_PRIV};    $rsapub=$ENV{RSA_PUB};
+            }
+            s/\{\{\s*secrets\.CISS_DLB_SSH_HOST_ED25519_KEY\s*\}\}/$ed/g;
+            s/\{\{\s*secrets\.CISS_DLB_SSH_HOST_ED25519_KEY_PUB\s*\}\}/$edpub/g;
+            s/\{\{\s*secrets\.CISS_DLB_SSH_HOST_RSA_KEY\s*\}\}/$rsa/g;
+            s/\{\{\s*secrets\.CISS_DLB_SSH_HOST_RSA_KEY_PUB\s*\}\}/$rsapub/g;
+          ' "${TPL}" > "${OUT}"
+
+          chmod 0755 "${OUT}"
+          echo "Hook rendered: ${OUT}"
+
+      - name: 🛠️ Starting CISS.debian.live.builder. This may take a while ...
+        shell: bash
+        working-directory: ${{ github.workspace }}
+        run: |
+          set -euo pipefail
+          chmod 0755 ciss_live_builder.sh
+          timestamp=$(date -u +"%Y_%m_%dT%H_%M_%SZ")
+          ### Change "--autobuild=" to the specific kernel version you need: '6.16.3+deb13-amd64'.
+          ./ciss_live_builder.sh \
+            --autobuild=6.16.3+deb13-amd64 \
+            --architecture amd64 \
+            --build-directory /opt/livebuild \
+            --cdi \
+            --control "${timestamp}" \
+            --debug \
+            --dhcp-centurion \
+            --jump-host ${{ secrets.CISS_DLB_JUMP_HOSTS }} \
+            --provider-netcup-ipv6 ${{ secrets.CISS_DLB_NETCUP_IPV6 }} \
+            --root-password-file /opt/config/password.txt \
+            --ssh-port ${{ secrets.CISS_DLB_SSH_PORT }} \
+            --ssh-pubkey /opt/config \
+            --sshfp \
+            --trixie
+
+          REPO_ROOT="$(git rev-parse --show-toplevel 2>/dev/null || pwd -P)"
+          OUT="$REPO_ROOT/config/hooks/live/9935_hardening_ssh.chroot"
+          rm -f "$OUT"
+          echo "Hook removed: $OUT"
+
+      - name: 📥 Checking Centurion Cloud for existing LIVE ISOs.
+        shell: bash
+        env:
+          NC_BASE: "https://cloud.e2ee.li"
+          SHARE_TOKEN: "${{ secrets.CENTURION_CLOUD_UL_USER }}"
+          SHARE_PASS: "${{ secrets.CENTURION_CLOUD_UL_PASSWD }}"
+        run: |
+          set -euo pipefail
+          SHARE_SUBDIR=""
+
+          echo "📥 Get directory listing via PROPFIND ..."
+          curl -s \
+          --user "${SHARE_TOKEN}:${SHARE_PASS}" \
+          -X PROPFIND \
+          -H "Depth: 1" \
+          "${NC_BASE}/public.php/webdav/${SHARE_SUBDIR}" \
+          -o propfind_public.xml
+
+          echo "📥 Filter .iso files from the PROPFIND response ..."
+          grep -oP '(?<=<d:href>)[^<]+\.iso(?=</d:href>)' propfind_public.xml >| public_iso_list.txt || true
+
+          if [[ -f public_iso_list.txt && -s public_iso_list.txt ]]; then
+            echo "💡 Old ISO files found and deleted :"
+            while IFS= read -r href; do
+              FILE_URL="${NC_BASE}${href}"
+              echo "  Delete: ${FILE_URL}"
+              if curl -s \
+                --user "${SHARE_TOKEN}:${SHARE_PASS}" \
+                  -X DELETE "${FILE_URL}"; then
+                echo "    ✅ Successfully deleted: $(basename "${href}")"
+              else
+                echo "    ❌ Error: $(basename "${href}") could not be deleted"
+              fi
+            done < public_iso_list.txt
+          else
+            echo "💡 No old ISO files found to delete."
+          fi
+
+      - name: 🛠️ Upload the ISO file to the Centurion Cloud (cloud.e2ee.li) via WebDAV.
+        shell: bash
+        env:
+          NC_BASE: "https://cloud.e2ee.li"
+          SHARE_TOKEN: "${{ secrets.CENTURION_CLOUD_UL_USER }}"
+          SHARE_PASS: "${{ secrets.CENTURION_CLOUD_UL_PASSWD }}"
+        run: |
+          set -euo pipefail
+          if [[ $(ls /opt/livebuild/*.iso 2>/dev/null | wc -l) -ne 1 ]]; then
+            echo "❌ There must be exactly one .iso file in the directory!"
+            exit 1
+          else
+            VAR_ISO_FILE_PATH=$(ls /opt/livebuild/*.iso)
+            VAR_ISO_FILE_NAME=$(basename "${VAR_ISO_FILE_PATH}")
+            echo "✅ ISO file found: ${VAR_ISO_FILE_NAME}"
+          fi
+
+          AUTH="${SHARE_TOKEN}:${SHARE_PASS}"
+          if curl --retry 2 "${NC_BASE}"/public.php/webdav/"${VAR_ISO_FILE_NAME}" \
+          --upload-file "${VAR_ISO_FILE_PATH}" --user "${AUTH}" > /dev/null 2>&1; then
+            echo "✅ New ISO successfully uploaded."
+          else
+            echo "❌ Uploading the new ISO failed."
+            exit 1
+          fi
+
+      - name: 🔑 Generating a sha512 Hash of ISO, signing with the 'CI PGP DEPLOY ONLY' key, generate a success message file.
+        shell: bash
+        run: |
+          if [[ $(ls /opt/livebuild/*.iso 2>/dev/null | wc -l) -ne 1 ]]; then
+            echo "❌ There must be exactly one .iso file in the directory!"
+            exit 1
+          else
+            VAR_ISO_FILE_PATH=$(ls /opt/livebuild/*.iso)
+            VAR_ISO_FILE_NAME=$(basename "${VAR_ISO_FILE_PATH}")
+            echo "✅ ISO file found: ${VAR_ISO_FILE_NAME}"
+          fi
+
+          VAR_ISO_FILE_SHA512="${VAR_ISO_FILE_NAME}.sha512"
+          touch "${VAR_ISO_FILE_SHA512}"
+          sha512sum "${VAR_ISO_FILE_PATH}" | awk '{print $1}' >| "${VAR_ISO_FILE_SHA512}"
+          SIGNATURE_FILE="${VAR_ISO_FILE_SHA512}.sign"
+          touch "${SIGNATURE_FILE}"
+          export GNUPGHOME="$(pwd)/.gnupg"
+          gpg --batch --yes --armor --detach-sign --output "${SIGNATURE_FILE}" "${VAR_ISO_FILE_SHA512}"
+
+          timestamp=$(date -u +"%Y-%m-%dT%H:%M:%SZ")
+          VAR_DATE="$(date +%F)"
+          PRIVATE_FILE="LIVE_ISO_TRIXIE_0.private"
+          touch "${PRIVATE_FILE}"
+          cat << EOF >| "${PRIVATE_FILE}"
+          # SPDX-Version: 3.0
+          # SPDX-CreationInfo: ${VAR_DATE}; WEIDNER, Marc S.; <msw@coresecret.dev>
+          # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
+          # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+          # SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+          # SPDX-FileType: SOURCE
+          # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+          # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+          # SPDX-PackageName: CISS.debian.live.builder
+          # SPDX-Security-Contact: security@coresecret.eu
+
+          This file was automatically generated by the DEPLOY BOT on: "${timestamp}"
+
+          CISS.debian.live.builder ISO :
+            "${VAR_ISO_FILE_NAME}"
+          CISS.debian.live.builder ISO sha512 :
+            $(< "${VAR_ISO_FILE_SHA512}")
+          CISS.debian.live.builder ISO sha512 sign :
+            $(< "${SIGNATURE_FILE}")
+
+          # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=text
+          EOF
+
+      - name: 🚧 Stash local changes (including untracked).
+        shell: bash
+        env:
+          GIT_SSH_COMMAND: "ssh -p 42842"
+        run: |
+          set -euo pipefail
+          ### Temporarily store any local modifications or untracked files.
+          git stash push --include-untracked -m "ci-temp" || echo "✔️ Nothing to stash."
+
+      - name: 🔄 Sync with remote before commit using merge strategy.
+        shell: bash
+        env:
+          GIT_SSH_COMMAND: "ssh -p 42842"
+        run: |
+          set -euo pipefail
+          export GNUPGHOME="$(pwd)/.gnupg"
+
+          echo "🔄 Fetching origin/master ..."
+          git fetch origin master
+
+          echo "🔁 Merging origin/master into current branch ..."
+          git merge --no-edit origin/master || echo "✔️ Already up to date or fast-forward."
+
+          echo "📋 Post-merge status :"
+          git status
+          git log --oneline -n 5
+
+      - name: 🛠️ Restore stashed changes.
+        shell: bash
+        env:
+          GIT_SSH_COMMAND: "ssh -p 42842"
+        run: |
+          set -euo pipefail
+          ### Apply previously stashed changes.
+          git stash pop || echo "✔️ Nothing to pop."
+
+      - name: 📦 Stage generated files.
+        shell: bash
+        env:
+          GIT_SSH_COMMAND: "ssh -p 42842"
+        run: |
+          set -euo pipefail
+          PRIVATE_FILE="LIVE_ISO_TRIXIE_0.private"
+          git add "${PRIVATE_FILE}" || echo "✔️ Nothing to add."
+
+      - name: 🔑 Commit and sign changes with CI metadata.
+        shell: bash
+        env:
+          GIT_SSH_COMMAND: "ssh -p 42842"
+        run: |
+          set -euo pipefail
+          export GNUPGHOME="$(pwd)/.gnupg"
+
+          if git diff --cached --quiet; then
+            echo "✔️ No staged changes to commit."
+          else
+            echo "📝 Committing changes with GPG signature ..."
+
+            ### CI Metadata
+            TIMESTAMP_UTC="$(date -u +'%Y-%m-%dT%H:%M:%SZ')"
+            HOSTNAME="$(hostname -f || hostname)"
+            GIT_SHA="$(git rev-parse --short HEAD)"
+            GIT_REF="$(git symbolic-ref --short HEAD || echo detached)"
+            WORKFLOW_ID="${GITHUB_WORKFLOW:-render-md-to-html.yaml}"
+            CI_HEADER="X-CI-Metadata: ${GIT_REF}@${GIT_SHA} at ${TIMESTAMP_UTC} on ${HOSTNAME}"
+
+            COMMIT_MSG="DEPLOY BOT   : 🔐 Auto-Generate PRIVATE LIVE ISO TRIXIE 0 [skip ci]
+
+          ${CI_HEADER}
+
+          Generated at : ${TIMESTAMP_UTC}
+          Runner Host  : ${HOSTNAME}
+          Workflow ID  : ${WORKFLOW_ID}
+          Git Commit   : ${GIT_SHA} HEAD -> ${GIT_REF}
+          "
+
+            echo "🔏 Commit message :"
+            echo "${COMMIT_MSG}"
+            git commit -S -m "${COMMIT_MSG}"
+          fi
+
+      - name: 🔁 Push back to repository.
+        shell: bash
+        env:
+          GIT_SSH_COMMAND: "ssh -p 42842"
+        run: |
+          set -euo pipefail
+          echo "📤 Pushing changes to ${GITHUB_REF_NAME} ..."
+          git push origin HEAD:${GITHUB_REF_NAME}
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=yaml

.gitea/workflows/generate_PRIVATE_trixie_1.yaml

@@ -0,0 +1,444 @@
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-08-22; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.live.builder
+# SPDX-Security-Contact: security@coresecret.eu
+
+# Version Master V8.13.142.2025.10.14
+
+name: 🔐 Generating a Private Live ISO TRIXIE.
+
+defaults:
+  run:
+    shell: bash
+
+permissions:
+  contents: write
+
+on:
+  push:
+    branches:
+      - master
+    paths:
+      - '.gitea/trigger/t_generate_PRIVATE_trixie_1.yaml'
+
+jobs:
+  generate-private-cdlb-trixie:
+    name: 🔐 Generating a Private Live ISO TRIXIE.
+    runs-on: cdlb.trixie
+
+    container:
+      image: debian:trixie
+
+    steps:
+      - name: 🛠️ Basic Image Setup.
+        shell: bash
+        run: |
+          export DEBIAN_FRONTEND=noninteractive
+          apt-get update
+          apt-get upgrade -y
+          apt-get install -y --no-install-recommends \
+            apt-utils \
+            bash \
+            ca-certificates \
+            curl \
+            git \
+            gnupg \
+            openssh-client \
+            openssl \
+            perl \
+            sudo \
+            util-linux
+
+      - name: ⚙️ Check GnuPG Version.
+        shell: bash
+        run: |
+          gpg --version
+
+      - name: ⚙️ Preparing SSH Setup, SSH Deploy Key, Known Hosts, .config.
+        shell: bash
+        run: |
+          set -euo pipefail
+          var_wait=$(( RANDOM % 33 ))
+          printf "⏳ Waiting %s seconds to desynchronize parallel workflows...\n" "${var_wait}"
+          sleep "${var_wait}"
+
+          rm -rf ~/.ssh && mkdir -m700 ~/.ssh
+
+          ### Private Key
+          echo "${{ secrets.SSH_MSW_DEPLOY_CORESECRET_DEV }}" >| ~/.ssh/id_ed25519
+          chmod 600 ~/.ssh/id_ed25519
+
+          ### Scan git.coresecret.dev to fill ~/.ssh/known_hosts
+          ssh-keyscan -p 42842 git.coresecret.dev >| ~/.ssh/known_hosts
+          chmod 600 ~/.ssh/known_hosts
+
+          ### Generate SSH Config for git.coresecret.dev Custom-Port
+          cat <<EOF >| ~/.ssh/config
+          Host git.coresecret.dev
+            HostName git.coresecret.dev
+            Port 42842
+            IdentityFile ~/.ssh/id_ed25519
+            StrictHostKeyChecking yes
+            UserKnownHostsFile ~/.ssh/known_hosts
+          EOF
+          chmod 600 ~/.ssh/config
+
+      ### https://github.com/actions/checkout/issues/1843
+      - name: 🛠️ Using manual clone via SSH to circumvent Gitea SHA-256 object issues.
+        shell: bash
+        env:
+          ### GITHUB_REF_NAME contains the branch name from the push event.
+          GITHUB_REF_NAME: ${{ github.ref_name }}
+        run: |
+          git clone --branch "${GITHUB_REF_NAME}" ssh://git@git.coresecret.dev:42842/msw/CISS.debian.live.builder.git .
+          git fetch --unshallow || echo "Nothing to fetch - already full clone."
+
+      - name: 🛠️ Cleaning the workspace.
+        shell: bash
+        run: |
+          git reset --hard
+          git clean -fd
+
+      - name: ⚙️ Importing the 'CI PGP DEPLOY ONLY' key.
+        shell: bash
+        run: |
+          set -euo pipefail
+          ### GPG-Home relative to the Runner Workspace to avoid changing global files.
+          export GNUPGHOME="$(pwd)/.gnupg"
+          mkdir -m 700 "${GNUPGHOME}"
+          echo "${{ secrets.PGP_PUBKEY_CENTURION_ROOT_2025_X448 }}" >| centurion-root.PUB.asc
+          gpg --batch --import centurion-root.PUB.asc
+          echo "${{ secrets.PGP_MSW_DEPLOY_CORESECRET_DEV }}" >| ci-bot.sec.asc
+          gpg --batch --import ci-bot.sec.asc
+          ### Trust the key automatically
+          KEY_ID=$(gpg --list-keys --with-colons | awk -F: '/^pub:/ {print $5}')
+          echo "trust-model always" >| "${GNUPGHOME}/gpg.conf"
+
+      - name: ⚙️ Configuring Git for signed CI/DEPLOY commits.
+        shell: bash
+        run: |
+          set -euo pipefail
+          export GNUPGHOME="$(pwd)/.gnupg"
+          git config user.name "Marc S. Weidner BOT"
+          git config user.email "msw+bot@coresecret.dev"
+          git config commit.gpgsign true
+          git config gpg.program gpg
+          git config gpg.format openpgp
+
+      - name: ⚙️ Preparing the build environment.
+        shell: bash
+        run: |
+          set -euo pipefail
+          mkdir -p /opt/config
+          mkdir -p /opt/livebuild
+          touch /opt/config/password.txt && chmod 0600 /opt/config/password.txt
+          touch /opt/config/authorized_keys && chmod 0600 /opt/config/authorized_keys
+          echo "${{ secrets.CISS_DLB_ROOT_PWD_1 }}" >| /opt/config/password.txt
+          echo "${{ secrets.CISS_DLB_ROOT_SSH_PUBKEY_1 }}" >| /opt/config/authorized_keys
+
+      - name: 🔧 Render live hook with secrets.
+        shell: bash
+        working-directory: ${{ github.workspace }}
+        env:
+          ED25519_PRIV:        ${{ secrets.CISS_DLB_SSH_HOST_ED25519_KEY }}
+          ED25519_PUB:         ${{ secrets.CISS_DLB_SSH_HOST_ED25519_KEY_PUB }}
+          RSA_PRIV:            ${{ secrets.CISS_DLB_SSH_HOST_RSA_KEY }}
+          RSA_PUB:             ${{ secrets.CISS_DLB_SSH_HOST_RSA_KEY_PUB }}
+          CISS_PRIMORDIAL:     ${{ secrets.CISS_PRIMORDIAL_PRIVATE }}
+          CISS_PRIMORDIAL_PUB: ${{ secrets.CISS_PRIMORDIAL_PUBLIC }}
+        run: |
+          set -Ceuo pipefail
+          umask 077
+
+          REPO_ROOT="$(git rev-parse --show-toplevel 2>/dev/null || pwd -P)"
+
+          TPL="${REPO_ROOT}/config/hooks/live/9935_hardening_ssh.chroot.tmpl"
+          OUT="${REPO_ROOT}/config/hooks/live/9935_hardening_ssh.chroot"
+          ID_OUT="${REPO_ROOT}/config/includes.chroot/root/.ssh/id_2025_ed25519_ciss_primordial"
+          ID_OUT_PUB="${REPO_ROOT}/config/includes.chroot/root/.ssh/id_2025_ed25519_ciss_primordial.pub"
+
+          if [[ ! -f "${TPL}" ]]; then
+            echo "Template not found: ${TPL}"
+            echo "::group::Tree of config/hooks/live"
+            ls -la "${REPO_ROOT}/config/hooks/live" || true
+            echo "::endgroup::"
+            exit 2
+          fi
+
+          export ED25519_PRIV="${ED25519_PRIV//$'\r'/}"
+          export ED25519_PUB="${ED25519_PUB//$'\r'/}"
+          export RSA_PRIV="${RSA_PRIV//$'\r'/}"
+          export RSA_PUB="${RSA_PUB//$'\r'/}"
+          export CISS_PRIMORDIAL="${CISS_PRIMORDIAL//$'\r'/}"
+          export CISS_PRIMORDIAL_PUB="${CISS_PRIMORDIAL_PUB//$'\r'/}"
+
+          (
+          cat << EOF >| "${ID_OUT}"
+          ${CISS_PRIMORDIAL}
+          EOF
+          ) && chmod 0600 "${ID_OUT}"
+          if [[ -f "${ID_OUT}" ]]; then
+            echo "Written: ${ID_OUT}"
+          else
+            echo "Error: ${ID_OUT} not written."
+          fi
+
+          (
+          cat << EOF >| "${ID_OUT_PUB}"
+          ${CISS_PRIMORDIAL_PUB}
+          EOF
+          ) && chmod 0600 "${ID_OUT_PUB}"
+          if [[ -f "${ID_OUT_PUB}" ]]; then
+            echo "Written: ${ID_OUT_PUB}"
+          else
+            echo "Error: ${ID_OUT_PUB} not written."
+          fi
+
+          perl -0777 -pe '
+            BEGIN{
+              $ed=$ENV{ED25519_PRIV}; $edpub=$ENV{ED25519_PUB};
+              $rsa=$ENV{RSA_PRIV};    $rsapub=$ENV{RSA_PUB};
+            }
+            s/\{\{\s*secrets\.CISS_DLB_SSH_HOST_ED25519_KEY\s*\}\}/$ed/g;
+            s/\{\{\s*secrets\.CISS_DLB_SSH_HOST_ED25519_KEY_PUB\s*\}\}/$edpub/g;
+            s/\{\{\s*secrets\.CISS_DLB_SSH_HOST_RSA_KEY\s*\}\}/$rsa/g;
+            s/\{\{\s*secrets\.CISS_DLB_SSH_HOST_RSA_KEY_PUB\s*\}\}/$rsapub/g;
+          ' "${TPL}" > "${OUT}"
+
+          chmod 0755 "${OUT}"
+          echo "Hook rendered: ${OUT}"
+
+      - name: 🛠️ Starting CISS.debian.live.builder. This may take a while ...
+        shell: bash
+        working-directory: ${{ github.workspace }}
+        run: |
+          set -euo pipefail
+          chmod 0755 ciss_live_builder.sh
+          timestamp=$(date -u +"%Y_%m_%dT%H_%M_%SZ")
+          ### Change "--autobuild=" to the specific kernel version you need: '6.16.3+deb13-amd64'.
+          ./ciss_live_builder.sh \
+            --autobuild=6.16.3+deb13-amd64 \
+            --architecture amd64 \
+            --build-directory /opt/livebuild \
+            --cdi \
+            --control "${timestamp}" \
+            --jump-host ${{ secrets.CISS_DLB_JUMP_HOSTS_1 }} \
+            --root-password-file /opt/config/password.txt \
+            --ssh-port ${{ secrets.CISS_DLB_SSH_PORT_1 }} \
+            --ssh-pubkey /opt/config \
+            --sshfp \
+            --trixie
+
+          REPO_ROOT="$(git rev-parse --show-toplevel 2>/dev/null || pwd -P)"
+          OUT="$REPO_ROOT/config/hooks/live/9935_hardening_ssh.chroot"
+          rm -f "$OUT"
+          echo "Hook removed: $OUT"
+
+      - name: 📥 Checking Centurion Cloud for existing LIVE ISOs.
+        shell: bash
+        env:
+          NC_BASE: "https://cloud.e2ee.li"
+          SHARE_TOKEN: "${{ secrets.CENTURION_CLOUD_UL_USER_1 }}"
+          SHARE_PASS: "${{ secrets.CENTURION_CLOUD_UL_PASSWD_1 }}"
+        run: |
+          set -euo pipefail
+          SHARE_SUBDIR=""
+
+          echo "📥 Get directory listing via PROPFIND ..."
+          curl -s \
+          --user "${SHARE_TOKEN}:${SHARE_PASS}" \
+          -X PROPFIND \
+          -H "Depth: 1" \
+          "${NC_BASE}/public.php/webdav/${SHARE_SUBDIR}" \
+          -o propfind_public.xml
+
+          echo "📥 Filter .iso files from the PROPFIND response ..."
+          grep -oP '(?<=<d:href>)[^<]+\.iso(?=</d:href>)' propfind_public.xml >| public_iso_list.txt || true
+
+          if [[ -f public_iso_list.txt && -s public_iso_list.txt ]]; then
+            echo "💡 Old ISO files found and deleted :"
+            while IFS= read -r href; do
+              FILE_URL="${NC_BASE}${href}"
+              echo "  Delete: ${FILE_URL}"
+              if curl -s \
+                --user "${SHARE_TOKEN}:${SHARE_PASS}" \
+                  -X DELETE "${FILE_URL}"; then
+                echo "    ✅ Successfully deleted: $(basename "${href}")"
+              else
+                echo "    ❌ Error: $(basename "${href}") could not be deleted"
+              fi
+            done < public_iso_list.txt
+          else
+            echo "💡 No old ISO files found to delete."
+          fi
+
+      - name: 🛠️ Upload the ISO file to the Centurion Cloud (cloud.e2ee.li) via WebDAV.
+        shell: bash
+        env:
+          NC_BASE: "https://cloud.e2ee.li"
+          SHARE_TOKEN: "${{ secrets.CENTURION_CLOUD_UL_USER_1 }}"
+          SHARE_PASS: "${{ secrets.CENTURION_CLOUD_UL_PASSWD_1 }}"
+        run: |
+          set -euo pipefail
+          if [[ $(ls /opt/livebuild/*.iso 2>/dev/null | wc -l) -ne 1 ]]; then
+            echo "❌ There must be exactly one .iso file in the directory!"
+            exit 1
+          else
+            VAR_ISO_FILE_PATH=$(ls /opt/livebuild/*.iso)
+            VAR_ISO_FILE_NAME=$(basename "${VAR_ISO_FILE_PATH}")
+            echo "✅ ISO file found: ${VAR_ISO_FILE_NAME}"
+          fi
+
+          AUTH="${SHARE_TOKEN}:${SHARE_PASS}"
+          if curl --retry 2 "${NC_BASE}"/public.php/webdav/"${VAR_ISO_FILE_NAME}" \
+          --upload-file "${VAR_ISO_FILE_PATH}" --user "${AUTH}" > /dev/null 2>&1; then
+            echo "✅ New ISO successfully uploaded."
+          else
+            echo "❌ Uploading the new ISO failed."
+            exit 1
+          fi
+
+      - name: 🔑 Generating a sha512 Hash of ISO, signing with the 'CI PGP DEPLOY ONLY' key, generate a success message file.
+        shell: bash
+        run: |
+          if [[ $(ls /opt/livebuild/*.iso 2>/dev/null | wc -l) -ne 1 ]]; then
+            echo "❌ There must be exactly one .iso file in the directory!"
+            exit 1
+          else
+            VAR_ISO_FILE_PATH=$(ls /opt/livebuild/*.iso)
+            VAR_ISO_FILE_NAME=$(basename "${VAR_ISO_FILE_PATH}")
+            echo "✅ ISO file found: ${VAR_ISO_FILE_NAME}"
+          fi
+
+          VAR_ISO_FILE_SHA512="${VAR_ISO_FILE_NAME}.sha512"
+          touch "${VAR_ISO_FILE_SHA512}"
+          sha512sum "${VAR_ISO_FILE_PATH}" | awk '{print $1}' >| "${VAR_ISO_FILE_SHA512}"
+          SIGNATURE_FILE="${VAR_ISO_FILE_SHA512}.sign"
+          touch "${SIGNATURE_FILE}"
+          export GNUPGHOME="$(pwd)/.gnupg"
+          gpg --batch --yes --armor --detach-sign --output "${SIGNATURE_FILE}" "${VAR_ISO_FILE_SHA512}"
+
+          timestamp=$(date -u +"%Y-%m-%dT%H:%M:%SZ")
+          VAR_DATE="$(date +%F)"
+          PRIVATE_FILE="LIVE_ISO_TRIXIE_1.private"
+          touch "${PRIVATE_FILE}"
+          cat << EOF >| "${PRIVATE_FILE}"
+          # SPDX-Version: 3.0
+          # SPDX-CreationInfo: ${VAR_DATE}; WEIDNER, Marc S.; <msw@coresecret.dev>
+          # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
+          # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+          # SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+          # SPDX-FileType: SOURCE
+          # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+          # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+          # SPDX-PackageName: CISS.debian.live.builder
+          # SPDX-Security-Contact: security@coresecret.eu
+
+          This file was automatically generated by the DEPLOY BOT on: "${timestamp}"
+
+          CISS.debian.live.builder ISO :
+            "${VAR_ISO_FILE_NAME}"
+          CISS.debian.live.builder ISO sha512 :
+            $(< "${VAR_ISO_FILE_SHA512}")
+          CISS.debian.live.builder ISO sha512 sign :
+            $(< "${SIGNATURE_FILE}")
+
+          # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=text
+          EOF
+
+      - name: 🚧 Stash local changes (including untracked).
+        shell: bash
+        env:
+          GIT_SSH_COMMAND: "ssh -p 42842"
+        run: |
+          set -euo pipefail
+          ### Temporarily store any local modifications or untracked files.
+          git stash push --include-untracked -m "ci-temp" || echo "✔️ Nothing to stash."
+
+      - name: 🔄 Sync with remote before commit using merge strategy.
+        shell: bash
+        env:
+          GIT_SSH_COMMAND: "ssh -p 42842"
+        run: |
+          set -euo pipefail
+          export GNUPGHOME="$(pwd)/.gnupg"
+
+          echo "🔄 Fetching origin/master ..."
+          git fetch origin master
+
+          echo "🔁 Merging origin/master into current branch ..."
+          git merge --no-edit origin/master || echo "✔️ Already up to date or fast-forward."
+
+          echo "📋 Post-merge status :"
+          git status
+          git log --oneline -n 5
+
+      - name: 🛠️ Restore stashed changes.
+        shell: bash
+        env:
+          GIT_SSH_COMMAND: "ssh -p 42842"
+        run: |
+          set -euo pipefail
+          ### Apply previously stashed changes.
+          git stash pop || echo "✔️ Nothing to pop."
+
+      - name: 📦 Stage generated files.
+        shell: bash
+        env:
+          GIT_SSH_COMMAND: "ssh -p 42842"
+        run: |
+          set -euo pipefail
+          PRIVATE_FILE="LIVE_ISO_TRIXIE_1.private"
+          git add "${PRIVATE_FILE}" || echo "✔️ Nothing to add."
+
+      - name: 🔑 Commit and sign changes with CI metadata.
+        shell: bash
+        env:
+          GIT_SSH_COMMAND: "ssh -p 42842"
+        run: |
+          set -euo pipefail
+          export GNUPGHOME="$(pwd)/.gnupg"
+
+          if git diff --cached --quiet; then
+            echo "✔️ No staged changes to commit."
+          else
+            echo "📝 Committing changes with GPG signature ..."
+
+            ### CI Metadata
+            TIMESTAMP_UTC="$(date -u +'%Y-%m-%dT%H:%M:%SZ')"
+            HOSTNAME="$(hostname -f || hostname)"
+            GIT_SHA="$(git rev-parse --short HEAD)"
+            GIT_REF="$(git symbolic-ref --short HEAD || echo detached)"
+            WORKFLOW_ID="${GITHUB_WORKFLOW:-render-md-to-html.yaml}"
+            CI_HEADER="X-CI-Metadata: ${GIT_REF}@${GIT_SHA} at ${TIMESTAMP_UTC} on ${HOSTNAME}"
+
+            COMMIT_MSG="DEPLOY BOT   : 🔐 Auto-Generate PRIVATE LIVE ISO TRIXIE 1 [skip ci]
+
+          ${CI_HEADER}
+
+          Generated at : ${TIMESTAMP_UTC}
+          Runner Host  : ${HOSTNAME}
+          Workflow ID  : ${WORKFLOW_ID}
+          Git Commit   : ${GIT_SHA} HEAD -> ${GIT_REF}
+          "
+
+            echo "🔏 Commit message :"
+            echo "${COMMIT_MSG}"
+            git commit -S -m "${COMMIT_MSG}"
+          fi
+
+      - name: 🔁 Push back to repository.
+        shell: bash
+        env:
+          GIT_SSH_COMMAND: "ssh -p 42842"
+        run: |
+          set -euo pipefail
+          echo "📤 Pushing changes to ${GITHUB_REF_NAME} ..."
+          git push origin HEAD:${GITHUB_REF_NAME}
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=yaml

.gitea/workflows/generate_PUBLIC_iso.yaml

@@ -2,16 +2,20 @@
 # SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-### Version Master V8.03.127.2025.06.02
+# Version Master V8.13.142.2025.10.14
 
-name: Generating a private Live ISO.
+name: 💙 Generating a PUBLIC Live ISO.
+
+defaults:
+  run:
+    shell: bash
 
 permissions:
   contents: write
@@ -21,55 +25,49 @@ on:
     branches:
       - master
     paths:
-      - '.gitea/trigger/t_generate_iso.yaml'
+      - '.gitea/trigger/t_generate_PUBLIC.yaml'
 
 jobs:
-  generate-private-ciss-debian-live-iso:
-    name: Generating a private Live ISO.
-    runs-on: ciss.debian.live.builder
+  generate-public-cdlb-trixie:
+    name: 💙 Generating a PUBLIC Live ISO.
+    runs-on: cdlb.trixie
 
-    ### Run all steps inside Debian Bookworm
     container:
       image: debian:trixie
 
     steps:
-      - name: Basic Image Setup and enable Bookworm Backports.
-        run: |
-          apt-get update
-          apt-get install -y apt-transport-https apt-utils bash ca-certificates openssl sudo
-          echo 'deb https://deb.debian.org/debian bookworm-backports main' \
-            >| /etc/apt/sources.list.d/bookworm-backports.list
-          apt-get update
-
-      - name: Installing Build Tools.
+      - name: 🛠️ Basic Image Setup.
         shell: bash
         run: |
+          export DEBIAN_FRONTEND=noninteractive
           apt-get update
-          apt-get install -y \
-            cryptsetup \
+          apt-get upgrade -y
+          apt-get install -y --no-install-recommends \
+            apt-utils \
+            bash \
+            ca-certificates \
             curl \
-            debootstrap \
-            dosfstools \
-            efibootmgr \
-            gnupg \
             git \
-            gpgv \
-            haveged \
-            live-build \
-            parted \
-            ssh \
-            ssl-cert \
-            wget \
-            whois
+            gnupg \
+            openssh-client \
+            openssl \
+            perl \
+            sudo \
+            util-linux
 
-      - name: Check GnuPG Version.
+      - name: ⚙️ Check GnuPG Version.
         shell: bash
         run: |
           gpg --version
 
-      - name: Preparing SSH Setup, SSH Deploy Key, Known Hosts, .config.
+      - name: ⚙️ Preparing SSH Setup, SSH Deploy Key, Known Hosts, .config.
         shell: bash
         run: |
+          set -euo pipefail
+          var_wait=$(( RANDOM % 33 ))
+          printf "⏳ Waiting %s seconds to desynchronize parallel workflows...\n" "${var_wait}"
+          sleep "${var_wait}"
+
           rm -rf ~/.ssh && mkdir -m700 ~/.ssh
 
           ### Private Key
@@ -92,7 +90,7 @@ jobs:
           chmod 600 ~/.ssh/config
 
       ### https://github.com/actions/checkout/issues/1843
-      - name: Using manual clone via SSH to circumvent Gitea SHA-256 object issues.
+      - name: 🛠️ Using manual clone via SSH to circumvent Gitea SHA-256 object issues.
         shell: bash
         env:
           ### GITHUB_REF_NAME contains the branch name from the push event.
@@ -101,27 +99,31 @@ jobs:
           git clone --branch "${GITHUB_REF_NAME}" ssh://git@git.coresecret.dev:42842/msw/CISS.debian.live.builder.git .
           git fetch --unshallow || echo "Nothing to fetch - already full clone."
 
-      - name: Cleaning the workspace.
+      - name: 🛠️ Cleaning the workspace.
         shell: bash
         run: |
           git reset --hard
           git clean -fd
 
-      - name: Importing the 'CI PGP DEPLOY ONLY' key.
+      - name: ⚙️ Importing the 'CI PGP DEPLOY ONLY' key.
         shell: bash
         run: |
+          set -euo pipefail
           ### GPG-Home relative to the Runner Workspace to avoid changing global files.
           export GNUPGHOME="$(pwd)/.gnupg"
           mkdir -m 700 "${GNUPGHOME}"
+          echo "${{ secrets.PGP_PUBKEY_CENTURION_ROOT_2025_X448 }}" >| centurion-root.PUB.asc
+          gpg --batch --import centurion-root.PUB.asc
           echo "${{ secrets.PGP_MSW_DEPLOY_CORESECRET_DEV }}" >| ci-bot.sec.asc
           gpg --batch --import ci-bot.sec.asc
           ### Trust the key automatically
           KEY_ID=$(gpg --list-keys --with-colons | awk -F: '/^pub:/ {print $5}')
           echo "trust-model always" >| "${GNUPGHOME}/gpg.conf"
 
-      - name: Configuring Git for signed CI/DEPLOY commits.
+      - name: ⚙️ Configuring Git for signed CI/DEPLOY commits.
         shell: bash
         run: |
+          set -euo pipefail
           export GNUPGHOME="$(pwd)/.gnupg"
           git config user.name "Marc S. Weidner BOT"
           git config user.email "msw+bot@coresecret.dev"
@@ -129,46 +131,48 @@ jobs:
           git config gpg.program gpg
           git config gpg.format openpgp
 
-      - name: Preparing the build environment.
+      - name: ⚙️ Preparing the build environment.
         shell: bash
         run: |
+          set -euo pipefail
           mkdir -p /opt/config
           mkdir -p /opt/livebuild
           touch /opt/config/password.txt && chmod 0600 /opt/config/password.txt
           touch /opt/config/authorized_keys && chmod 0600 /opt/config/authorized_keys
-          echo "${{ secrets.CISS_DLB_ROOT_PWD }}" >| /opt/config/password.txt
-          echo "${{ secrets.CISS_DLB_ROOT_SSH_PUBKEY }}" >| /opt/config/authorized_keys
+          echo 'Mvnz#zENbf2vsAYEAbfPcnbDcmct7XefPXfRJxSQQH' >| /opt/config/password.txt
+          echo 'ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAINAYZDAqVZUk3LwJsqeVHKvLn8UKkFx642VBbiSS8uSY 2025_ciss.debian.live.ISO_PUBLIC_ONLY' >| /opt/config/authorized_keys
 
-      - name: Starting CISS.debian.live.builder. This may take a while ...
+      - name: 🛠️ Starting CISS.debian.live.builder. This may take a while ...
         shell: bash
         run: |
+          set -euo pipefail
+          sed -i '/^hardening_ssh.*/d' ciss_live_builder.sh
           chmod 0755 ciss_live_builder.sh
           timestamp=$(date -u +"%Y_%m_%dT%H_%M_%SZ")
-          ### Change "--autobuild=" to the specific kernel version you need: 6.12.22+bpo-amd64.
+          ### Change "--autobuild=" to the specific kernel version you need: '6.16.3+deb13-amd64'.
           ./ciss_live_builder.sh \
-            --autobuild=6.12.22+bpo-amd64 \
+            --autobuild=6.16.3+deb13-amd64 \
             --architecture amd64 \
             --build-directory /opt/livebuild \
+            --cdi \
             --control "${timestamp}" \
             --debug \
-            --dhcp-centurion \
-            --jump-host "${{ secrets.CISS_DLB_JUMP_HOSTS }}" \
-            --provider-netcup-ipv6 "${{ secrets.CISS_DLB_NETCUP_IPV6 }}" \
             --root-password-file /opt/config/password.txt \
-            --ssh-port 42842 \
-            --ssh-pubkey /opt/config
+            --ssh-port 42137 \
+            --ssh-pubkey /opt/config \
+            --trixie
 
-      - name: Checking Centurion Cloud for existing LIVE ISOs.
+      - name: 📥 Checking Centurion Cloud for existing LIVE ISOs.
         shell: bash
         env:
           NC_BASE: "https://cloud.e2ee.li"
-          SHARE_TOKEN: "${{ secrets.CENTURION_CLOUD_UL_USER }}"
-          SHARE_PASS: "${{ secrets.CENTURION_CLOUD_UL_PASSWD }}"
+          SHARE_TOKEN: "${{ secrets.CENTURION_CLOUD_UL_USER_PUBLIC }}"
+          SHARE_PASS: "${{ secrets.CENTURION_CLOUD_UL_PASSWD_PUBLIC }}"
         run: |
           set -euo pipefail
           SHARE_SUBDIR=""
 
-          echo "Get directory listing via PROPFIND ..."
+          echo "📥 Get directory listing via PROPFIND ..."
           curl -s \
           --user "${SHARE_TOKEN}:${SHARE_PASS}" \
           -X PROPFIND \
@@ -176,11 +180,11 @@ jobs:
           "${NC_BASE}/public.php/webdav/${SHARE_SUBDIR}" \
           -o propfind_public.xml
 
-          echo "Filter .iso files from the PROPFIND response ..."
+          echo "📥 Filter .iso files from the PROPFIND response ..."
           grep -oP '(?<=<d:href>)[^<]+\.iso(?=</d:href>)' propfind_public.xml >| public_iso_list.txt || true
 
           if [[ -f public_iso_list.txt && -s public_iso_list.txt ]]; then
-            echo "Old ISO files found and deleted :"
+            echo "💡 Old ISO files found and deleted :"
             while IFS= read -r href; do
               FILE_URL="${NC_BASE}${href}"
               echo "  Delete: ${FILE_URL}"
@@ -193,16 +197,17 @@ jobs:
               fi
             done < public_iso_list.txt
           else
-            echo "No old ISO files found to delete."
+            echo "💡 No old ISO files found to delete."
           fi
 
-      - name: Upload the ISO file to the Centurion Cloud (cloud.e2ee.li) via WebDAV.
+      - name: 🛠️ Upload the ISO file to the Centurion Cloud (cloud.e2ee.li) via WebDAV.
         shell: bash
         env:
           NC_BASE: "https://cloud.e2ee.li"
-          SHARE_TOKEN: "${{ secrets.CENTURION_CLOUD_UL_USER }}"
-          SHARE_PASS: "${{ secrets.CENTURION_CLOUD_UL_PASSWD }}"
+          SHARE_TOKEN: "${{ secrets.CENTURION_CLOUD_UL_USER_PUBLIC }}"
+          SHARE_PASS: "${{ secrets.CENTURION_CLOUD_UL_PASSWD_PUBLIC }}"
         run: |
+          set -euo pipefail
           if [[ $(ls /opt/livebuild/*.iso 2>/dev/null | wc -l) -ne 1 ]]; then
             echo "❌ There must be exactly one .iso file in the directory!"
             exit 1
@@ -214,14 +219,14 @@ jobs:
 
           AUTH="${SHARE_TOKEN}:${SHARE_PASS}"
           if curl --retry 2 "${NC_BASE}"/public.php/webdav/"${VAR_ISO_FILE_NAME}" \
-          --upload-file "${VAR_ISO_FILE_PATH}" --user "${AUTH}"; then
+          --upload-file "${VAR_ISO_FILE_PATH}" --user "${AUTH}" > /dev/null 2>&1; then
             echo "✅ New ISO successfully uploaded."
           else
             echo "❌ Uploading the new ISO failed."
             exit 1
           fi
 
-      - name: Generating a sha512 Hash of ISO, signing with the 'CI PGP DEPLOY ONLY' key, generate a success message file.
+      - name: 🔑 Generating a sha512 Hash of ISO, signing with the 'CI PGP DEPLOY ONLY' key, generate a success message file.
         shell: bash
         run: |
           if [[ $(ls /opt/livebuild/*.iso 2>/dev/null | wc -l) -ne 1 ]]; then
@@ -242,63 +247,120 @@ jobs:
           gpg --batch --yes --armor --detach-sign --output "${SIGNATURE_FILE}" "${VAR_ISO_FILE_SHA512}"
 
           timestamp=$(date -u +"%Y-%m-%dT%H:%M:%SZ")
-          PRIVATE_FILE="LIVE_ISO.private"
+          VAR_DATE="$(date +%F)"
+          PRIVATE_FILE="LIVE_ISO.public"
           touch "${PRIVATE_FILE}"
           cat << EOF >| "${PRIVATE_FILE}"
           # SPDX-Version: 3.0
-          # SPDX-CreationInfo: 2025-06-01; WEIDNER, Marc S.; <msw@coresecret.dev>
+          # SPDX-CreationInfo: ${VAR_DATE}; WEIDNER, Marc S.; <msw@coresecret.dev>
           # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
           # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-          # SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+          # SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
           # SPDX-FileType: SOURCE
           # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
           # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
           # SPDX-PackageName: CISS.debian.live.builder
           # SPDX-Security-Contact: security@coresecret.eu
 
-          This file was automatically generated by the DEPLOY BOT on: "${timestamp}".
+          This file was automatically generated by the DEPLOY BOT on: "${timestamp}"
 
           CISS.debian.live.builder ISO :
             "${VAR_ISO_FILE_NAME}"
           CISS.debian.live.builder ISO sha512 :
-            "${VAR_ISO_FILE_SHA512}"
+            $(< "${VAR_ISO_FILE_SHA512}")
           CISS.debian.live.builder ISO sha512 sign :
             $(< "${SIGNATURE_FILE}")
 
           # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=text
           EOF
 
-      - name: Sync with remote before commit to avoid Job Race Conditions.
+      - name: 🚧 Stash local changes (including untracked).
         shell: bash
         env:
           GIT_SSH_COMMAND: "ssh -p 42842"
         run: |
+          set -euo pipefail
+          ### Temporarily store any local modifications or untracked files.
+          git stash push --include-untracked -m "ci-temp" || echo "✔️ Nothing to stash."
+
+      - name: 🔄 Sync with remote before commit using merge strategy.
+        shell: bash
+        env:
+          GIT_SSH_COMMAND: "ssh -p 42842"
+        run: |
+          set -euo pipefail
           export GNUPGHOME="$(pwd)/.gnupg"
+
+          echo "🔄 Fetching origin/master ..."
           git fetch origin master
-          git rebase origin/master
+
+          echo "🔁 Merging origin/master into current branch ..."
+          git merge --no-edit origin/master || echo "✔️ Already up to date or fast-forward."
+
+          echo "📋 Post-merge status :"
           git status
           git log --oneline -n 5
 
-      - name: Stage generated files.
+      - name: 🛠️ Restore stashed changes.
         shell: bash
         env:
           GIT_SSH_COMMAND: "ssh -p 42842"
         run: |
-          PRIVATE_FILE="LIVE_ISO.private"
-          git add "${PRIVATE_FILE}"
+          set -euo pipefail
+          ### Apply previously stashed changes.
+          git stash pop || echo "✔️ Nothing to pop."
 
-      - name: Commit and Sign changes.
+      - name: 📦 Stage generated files.
         shell: bash
         env:
           GIT_SSH_COMMAND: "ssh -p 42842"
         run: |
+          set -euo pipefail
+          PRIVATE_FILE="LIVE_ISO.public"
+          git add "${PRIVATE_FILE}" || echo "✔️ Nothing to add."
+
+      - name: 🔑 Commit and sign changes with CI metadata.
+        shell: bash
+        env:
+          GIT_SSH_COMMAND: "ssh -p 42842"
+        run: |
+          set -euo pipefail
           export GNUPGHOME="$(pwd)/.gnupg"
-          git commit -S -m "DEPLOY BOT: Auto-Generate LIVE ISO [skip ci]" || echo "No Changes, nothing to Sign or to Commit."
 
-      - name: Push back to Repository.
+          if git diff --cached --quiet; then
+            echo "✔️ No staged changes to commit."
+          else
+            echo "📝 Committing changes with GPG signature ..."
+
+            ### CI Metadata
+            TIMESTAMP_UTC="$(date -u +'%Y-%m-%dT%H:%M:%SZ')"
+            HOSTNAME="$(hostname -f || hostname)"
+            GIT_SHA="$(git rev-parse --short HEAD)"
+            GIT_REF="$(git symbolic-ref --short HEAD || echo detached)"
+            WORKFLOW_ID="${GITHUB_WORKFLOW:-render-md-to-html.yaml}"
+            CI_HEADER="X-CI-Metadata: ${GIT_REF}@${GIT_SHA} at ${TIMESTAMP_UTC} on ${HOSTNAME}"
+
+            COMMIT_MSG="DEPLOY BOT   : 💙 Auto-Generate PUBLIC LIVE ISO [skip ci]
+
+          ${CI_HEADER}
+
+          Generated at : ${TIMESTAMP_UTC}
+          Runner Host  : ${HOSTNAME}
+          Workflow ID  : ${WORKFLOW_ID}
+          Git Commit   : ${GIT_SHA} HEAD -> ${GIT_REF}
+          "
+
+            echo "🔏 Commit message :"
+            echo "${COMMIT_MSG}"
+            git commit -S -m "${COMMIT_MSG}"
+          fi
+
+      - name: 🔁 Push back to repository.
         shell: bash
         env:
           GIT_SSH_COMMAND: "ssh -p 42842"
         run: |
+          set -euo pipefail
+          echo "📤 Pushing changes to ${GITHUB_REF_NAME} ..."
           git push origin HEAD:${GITHUB_REF_NAME}
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=yaml

.gitea/workflows/linter_char_scripts.yaml

@@ -0,0 +1,345 @@
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.live.builder
+# SPDX-Security-Contact: security@coresecret.eu
+
+# Version Master V8.13.142.2025.10.14
+
+# Gitea Workflow: Shell-Script Linting
+#
+# This workflow scans all '*.sh', '*.zsh', '*.chroot' and all files with Shebang (#!) for:
+# 1. Windows CRLF line endings
+# 2. unauthorized control characters (C0 control characters except \t, \n)
+# 3. non-ASCII (ambiguous UTF) characters
+#
+# Findings are collected and at the end of the run with file, line number,
+# and the respective character in the Runner output.
+
+name: 🛡️ Shell Script Linting
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  shell-script-linter:
+    name: 🛡️ Shell Script Linting
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: ⚙️ Preparing SSH Setup, SSH Deploy Key, Known Hosts, .config.
+        shell: bash
+        run: |
+          set -euo pipefail
+          var_wait=$(( RANDOM % 33 ))
+          printf "⏳ Waiting %s seconds to desynchronize parallel workflows...\n" "${var_wait}"
+          sleep "${var_wait}"
+
+          rm -rf ~/.ssh && mkdir -m700 ~/.ssh
+
+          ### Private Key
+          echo "${{ secrets.SSH_MSW_DEPLOY_CORESECRET_DEV }}" >| ~/.ssh/id_ed25519
+          chmod 600 ~/.ssh/id_ed25519
+
+          ### Scan git.coresecret.dev to fill ~/.ssh/known_hosts
+          ssh-keyscan -p 42842 git.coresecret.dev >| ~/.ssh/known_hosts
+          chmod 600 ~/.ssh/known_hosts
+
+          ### Generate SSH Config for git.coresecret.dev Custom-Port
+          cat <<EOF >| ~/.ssh/config
+          Host git.coresecret.dev
+            HostName git.coresecret.dev
+            Port 42842
+            IdentityFile ~/.ssh/id_ed25519
+            StrictHostKeyChecking yes
+            UserKnownHostsFile ~/.ssh/known_hosts
+          EOF
+          chmod 600 ~/.ssh/config
+
+      ### https://github.com/actions/checkout/issues/1843
+      - name: 🛠️ Using manual clone via SSH to circumvent Gitea SHA-256 object issues.
+        shell: bash
+        env:
+          ### GITHUB_REF_NAME contains the branch name from the push event.
+          GITHUB_REF_NAME: ${{ github.ref_name }}
+        run: |
+          set -euo pipefail
+          git clone --branch "${GITHUB_REF_NAME}" ssh://git@git.coresecret.dev:42842/msw/CISS.debian.live.builder.git .
+          git fetch --unshallow || echo "Nothing to fetch - already full clone."
+
+      - name: 🛠️ Cleaning the workspace.
+        shell: bash
+        run: |
+          set -euo pipefail
+          git reset --hard
+          git clean -fd
+
+      - name: ⚙️ Importing the 'CI PGP DEPLOY ONLY' key.
+        shell: bash
+        run: |
+          set -euo pipefail
+          ### GPG-Home relative to the Runner Workspace to avoid changing global files.
+          export GNUPGHOME="$(pwd)/.gnupg"
+          mkdir -m 700 "${GNUPGHOME}"
+          echo "${{ secrets.PGP_MSW_DEPLOY_CORESECRET_DEV }}" >| ci-bot.sec.asc
+          gpg --batch --import ci-bot.sec.asc
+          ### Trust the key automatically
+          KEY_ID=$(gpg --list-keys --with-colons | awk -F: '/^pub:/ {print $5}')
+          echo "trust-model always" >| "${GNUPGHOME}/gpg.conf"
+
+      - name: ⚙️ Configuring Git for signed CI/DEPLOY commits.
+        shell: bash
+        run: |
+          set -euo pipefail
+          export GNUPGHOME="$(pwd)/.gnupg"
+          git config user.name "Marc S. Weidner BOT"
+          git config user.email "msw+bot@coresecret.dev"
+          git config commit.gpgsign true
+          git config gpg.program gpg
+          git config gpg.format openpgp
+
+      - name: ⚙️ Convert APT sources to HTTPS.
+        shell: bash
+        run: |
+          set -euo pipefail
+          sed -i 's|http://\(archive\.ubuntu\.com\|security\.ubuntu\.com\)|https://\1|g' /etc/apt/sources.list
+          sed -i 's|http://\(archive\.ubuntu\.com\|security\.ubuntu\.com\)|https://\1|g' /etc/apt/sources.list.d/*.list || true
+
+      - name: 🛠️ Install dependencies.
+        shell: bash
+        run: |
+          ### Install grep with Perl-regex support, falls noch nicht vorhanden
+          apt-get update
+          apt-get upgrade -y
+          apt-get install -y grep
+
+      - name: 🔍 Lint shell scripts
+        shell: bash
+        run: |
+          # -------------------------------
+          # STEP 1: Find target files.
+          #
+          # We capture:
+          # - All files '*.sh', '*.zsh', '*.chroot'
+          # - All files whose first line begins with "#!" (shebang)
+          # -------------------------------
+          mapfile -t files_to_check < <(
+            find . \
+              -path './.git' -prune -o \
+              -type f \( \
+                -iname '*.sh' -o \
+                -iname '*.zsh' -o \
+                -iname '*.chroot' -o \
+                -exec grep -Iq '^#!' {} \; \
+              \) -print
+          )
+
+          # -------------------------------
+          # STEP 2: Regex definitions
+          #
+          # - CRLF_REGEX           Carriage Return (\r) for Windows CRLF
+          # - CTRL_REGEX           C0 control characters except Tab (\x09) and Newline (\x0A)
+          #   - Range:             [\x00-\x08\x0B-\x0C\x0E-\x1F\x7F]
+          # - NON_ASCII_REGEX      All bytes -> 0x7F, except emoji characters in defined ranges
+          #
+          # Emoji ranges that we exclude:
+          # - \x{1F300}-\x{1F5FF}  Misc Symbols & Pictographs
+          # - \x{1F600}-\x{1F64F}  Emoticons
+          # - \x{1F680}-\x{1F6FF}  Transport & Map Symbols
+          # - \x{1F900}-\x{1F9FF}  Supplemental Symbols & Pictographs
+          # - \x{2600}-\x{26FF}    Miscellaneous Symbols
+          # - \x{2700}-\x{27BF}    Dingbats
+          # -------------------------------
+
+          CRLF_REGEX=$'\r'
+          CTRL_REGEX='[\x00-\x08\x0B-\x0C\x0E-\x1F\x7F]'
+          NON_ASCII_REGEX='(?![\x{1F300}-\x{1F5FF}\x{1F600}-\x{1F64F}\x{1F680}-\x{1F6FF}\x{1F900}-\x{1F9FF}\x{2600}-\x{26FF}\x{2700}-\x{27BF}])[^\x00-\x7F]'
+
+          # -------------------------------
+          # STEP 3: Accumulator for findings
+          # -------------------------------
+          findings=""
+
+          # -------------------------------
+          # STEP 4: Perform all checks for each file
+          # -------------------------------
+          for file in "${files_to_check[@]}"; do
+            #
+            # 4.1: CRLF detection
+            #      grep -nP returns "lineno:<line with CR>"
+            # -------------------------------
+            while IFS=: read -r lineno _rest; do
+              findings+="${file}: CRLF-found at line ${lineno}: <CR>"$'\n'
+            done < <(grep -nP "${CRLF_REGEX}" "${file}" || true)
+
+            #
+            # 4.2: Unallowed control characters
+            #      grep -nP -o returns "lineno:<matched-char>"
+            # -------------------------------
+            while IFS=: read -r lineno char; do
+              findings+="${file}: control-char at line ${lineno}: ${char}"$'\n'
+            done < <(grep -nP -o "${CTRL_REGEX}" "${file}" || true)
+
+            #
+            # 4.3: Non-ASCII characters with emoji exception
+            #      grep -nP -o returns "lineno:<matched-char>"
+            # -------------------------------
+            while IFS=: read -r lineno char; do
+              findings+="${file}: non-ascii at line ${lineno}: ${char}"$'\n'
+            done < <(grep -nP -o "${NON_ASCII_REGEX}" "${file}" || true)
+          done
+
+          # -------------------------------
+          # STEP 5: Output results
+          # -------------------------------
+          if [[ -n "${findings}" ]]; then
+            echo -e "⚠️ Linting issues detected:\n"
+            echo -e "${findings}"
+            timestamp=$(date -u +"%Y-%m-%dT%H:%M:%SZ")
+            VAR_DATE="$(date +%F)"
+            PRIVATE_FILE="LINTER_RESULTS.txt"
+            touch "${PRIVATE_FILE}"
+            cat << EOF >| "${PRIVATE_FILE}"
+          # SPDX-Version: 3.0
+          # SPDX-CreationInfo: ${VAR_DATE}; WEIDNER, Marc S.; <msw@coresecret.dev>
+          # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
+          # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+          # SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+          # SPDX-FileType: SOURCE
+          # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+          # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+          # SPDX-PackageName: CISS.debian.live.builder
+          # SPDX-Security-Contact: security@coresecret.eu
+
+          This file was automatically generated by the DEPLOY BOT on: "${timestamp}"
+
+          ⚠️ The last linter check was NOT successful. ⚠️
+
+          # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=text
+          EOF
+          else
+            echo "✅ No issues found in shell scripts."
+            timestamp=$(date -u +"%Y-%m-%dT%H:%M:%SZ")
+            VAR_DATE="$(date +%F)"
+            PRIVATE_FILE="LINTER_RESULTS.txt"
+            touch "${PRIVATE_FILE}"
+            cat << EOF >| "${PRIVATE_FILE}"
+          # SPDX-Version: 3.0
+          # SPDX-CreationInfo: ${VAR_DATE}; WEIDNER, Marc S.; <msw@coresecret.dev>
+          # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
+          # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+          # SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+          # SPDX-FileType: SOURCE
+          # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+          # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+          # SPDX-PackageName: CISS.debian.live.builder
+          # SPDX-Security-Contact: security@coresecret.eu
+
+          This file was automatically generated by the DEPLOY BOT on: "${timestamp}"
+
+          ✅ The last linter check was successful. ✅
+
+          # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=text
+          EOF
+          fi
+
+      - name: 🚧 Stash local changes (including untracked).
+        shell: bash
+        env:
+          GIT_SSH_COMMAND: "ssh -p 42842"
+        run: |
+          set -euo pipefail
+          ### Temporarily store any local modifications or untracked files.
+          git stash push --include-untracked -m "ci-temp" || echo "✔️ Nothing to stash."
+
+      - name: 🔄 Sync with remote before commit using merge strategy.
+        shell: bash
+        env:
+          GIT_SSH_COMMAND: "ssh -p 42842"
+        run: |
+          set -euo pipefail
+          export GNUPGHOME="$(pwd)/.gnupg"
+
+          echo "🔄 Fetching origin/master ..."
+          git fetch origin master
+
+          echo "🔁 Merging origin/master into current branch ..."
+          git merge --no-edit origin/master || echo "✔️ Already up to date or fast-forward."
+
+          echo "📋 Post-merge status :"
+          git status
+          git log --oneline -n 5
+
+      - name: 🛠️ Restore stashed changes.
+        shell: bash
+        env:
+          GIT_SSH_COMMAND: "ssh -p 42842"
+        run: |
+          set -euo pipefail
+          ### Apply previously stashed changes.
+          git stash pop || echo "✔️ Nothing to pop."
+
+      - name: 📦 Stage generated files.
+        shell: bash
+        env:
+          GIT_SSH_COMMAND: "ssh -p 42842"
+        run: |
+          set -euo pipefail
+          PRIVATE_FILE="LINTER_RESULTS.txt"
+          git add "${PRIVATE_FILE}" || echo "✔️ Nothing to add."
+
+      - name: 🔑 Commit and sign changes with CI metadata.
+        shell: bash
+        env:
+          GIT_SSH_COMMAND: "ssh -p 42842"
+        run: |
+          set -euo pipefail
+          export GNUPGHOME="$(pwd)/.gnupg"
+
+          if git diff --cached --quiet; then
+            echo "✔️ No staged changes to commit."
+          else
+            echo "📝 Committing changes with GPG signature ..."
+
+            ### CI Metadata
+            TIMESTAMP_UTC="$(date -u +'%Y-%m-%dT%H:%M:%SZ')"
+            HOSTNAME="$(hostname -f || hostname)"
+            GIT_SHA="$(git rev-parse --short HEAD)"
+            GIT_REF="$(git symbolic-ref --short HEAD || echo detached)"
+            WORKFLOW_ID="${GITHUB_WORKFLOW:-render-md-to-html.yaml}"
+            CI_HEADER="X-CI-Metadata: ${GIT_REF}@${GIT_SHA} at ${TIMESTAMP_UTC} on ${HOSTNAME}"
+
+            COMMIT_MSG="DEPLOY BOT   : 🛡️ Shell Script Linting [skip ci]
+
+          ${CI_HEADER}
+
+          Generated at : ${TIMESTAMP_UTC}
+          Runner Host  : ${HOSTNAME}
+          Workflow ID  : ${WORKFLOW_ID}
+          Git Commit   : ${GIT_SHA} HEAD -> ${GIT_REF}
+          "
+
+            echo "🔏 Commit message :"
+            echo "${COMMIT_MSG}"
+            git commit -S -m "${COMMIT_MSG}"
+          fi
+
+      - name: 🔁 Push back to repository.
+        shell: bash
+        env:
+          GIT_SSH_COMMAND: "ssh -p 42842"
+        run: |
+          set -euo pipefail
+          echo "📤 Pushing changes to ${GITHUB_REF_NAME} ..."
+          git push origin HEAD:${GITHUB_REF_NAME}
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=yaml

.gitea/workflows/render-dnssec-status.yaml

@@ -2,16 +2,16 @@
 # SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-### Version Master V8.03.127.2025.06.02
+# Version Master V8.13.142.2025.10.14
 
-name: Retrieve the DNSSEC status at the time of updating the repository.
+name: 🛡️ Retrieve DNSSEC status of coresecret.dev.
 
 permissions:
   contents: write
@@ -25,14 +25,19 @@ on:
 
 jobs:
   build-dnssec-diagram:
-    name: Retrieve the DNSSEC status at the time of updating the repository.
+    name: 🛡️ Retrieve DNSSEC status of coresecret.dev.
     runs-on: ubuntu-latest
+
     steps:
-      - name: Prepare SSH Setup, SSH Deploy Key, Known Hosts, config.
+      - name: ⚙️ Preparing SSH Setup, SSH Deploy Key, Known Hosts, .config.
         shell: bash
         run: |
-          rm -rf ~/.ssh
-          mkdir -p ~/.ssh
+          set -euo pipefail
+          var_wait=$(( RANDOM % 33 ))
+          printf "⏳ Waiting %s seconds to desynchronize parallel workflows...\n" "${var_wait}"
+          sleep "${var_wait}"
+
+          rm -rf ~/.ssh && mkdir -m700 ~/.ssh
 
           ### Private Key
           echo "${{ secrets.SSH_MSW_DEPLOY_CORESECRET_DEV }}" >| ~/.ssh/id_ed25519
@@ -54,36 +59,27 @@ jobs:
           chmod 600 ~/.ssh/config
 
       ### https://github.com/actions/checkout/issues/1843
-      - name: Use manual clone via SSH to circumvent Gitea SHA-256 object issues.
+      - name: 🛠️ Using manual clone via SSH to circumvent Gitea SHA-256 object issues.
         shell: bash
-        run: |
-          git clone --branch "${GITHUB_REF_NAME}" ssh://git@git.coresecret.dev:42842/msw/CISS.debian.live.builder.git .
-          git fetch --unshallow || echo "Nothing to fetch - already full clone."
         env:
           ### GITHUB_REF_NAME contains the branch name from the push event.
           GITHUB_REF_NAME: ${{ github.ref_name }}
+        run: |
+          set -euo pipefail
+          git clone --branch "${GITHUB_REF_NAME}" ssh://git@git.coresecret.dev:42842/msw/CISS.debian.live.builder.git .
+          git fetch --unshallow || echo "Nothing to fetch - already full clone."
 
-      - name: Clean workspace.
+      - name: 🛠️ Cleaning the workspace.
         shell: bash
         run: |
+          set -euo pipefail
           git reset --hard
           git clean -fd
 
-      - name: Convert APT sources to HTTPS.
-        shell: bash
-        run: |
-          sed -i 's|http://\(archive\.ubuntu\.com\|security\.ubuntu\.com\)|https://\1|g' /etc/apt/sources.list
-          sed -i 's|http://\(archive\.ubuntu\.com\|security\.ubuntu\.com\)|https://\1|g' /etc/apt/sources.list.d/*.list || true
-
-      - name: Install DNSViz.
-        shell: bash
-        run: |
-          sudo apt-get update
-          sudo apt-get install -y dnsviz
-
-      - name: Import CI PGP DEPLOY ONLY Key.
+      - name: ⚙️ Importing the 'CI PGP DEPLOY ONLY' key.
         shell: bash
         run: |
+          set -euo pipefail
           ### GPG-Home relative to the Runner Workspace to avoid changing global files.
           export GNUPGHOME="$(pwd)/.gnupg"
           mkdir -m 700 "${GNUPGHOME}"
@@ -93,9 +89,10 @@ jobs:
           KEY_ID=$(gpg --list-keys --with-colons | awk -F: '/^pub:/ {print $5}')
           echo "trust-model always" >| "${GNUPGHOME}/gpg.conf"
 
-      - name: Configure Git for signed CI DEPLOY commits.
+      - name: ⚙️ Configuring Git for signed CI/DEPLOY commits.
         shell: bash
         run: |
+          set -euo pipefail
           export GNUPGHOME="$(pwd)/.gnupg"
           git config user.name "Marc S. Weidner BOT"
           git config user.email "msw+bot@coresecret.dev"
@@ -103,43 +100,123 @@ jobs:
           git config gpg.program gpg
           git config gpg.format openpgp
 
-      - name: Ensure docs/SECURITY/ directory exists.
+      - name: ⚙️ Convert APT sources to HTTPS.
+        shell: bash
+        run: |
+          set -euo pipefail
+          sed -i 's|http://\(archive\.ubuntu\.com\|security\.ubuntu\.com\)|https://\1|g' /etc/apt/sources.list
+          sed -i 's|http://\(archive\.ubuntu\.com\|security\.ubuntu\.com\)|https://\1|g' /etc/apt/sources.list.d/*.list || true
+
+      - name: 🛠️ Install DNSViz.
+        shell: bash
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y dnsviz
+
+      - name: ⚙️ Ensure docs/SECURITY/ directory exists.
         shell: bash
         run: |
           mkdir -p docs/SECURITY/
           rm -f docs/SECURITY/coresecret.dev.png
 
-      - name: Prepare DNS Cache.
+      - name: 🛠️ Prepare DNS Cache.
         shell: bash
         run: |
           sudo apt-get install -y dnsutils
           dig +dnssec +multi coresecret.dev @8.8.8.8
 
-      - name: Retrieve Zone Dump and generate .png Visualization.
+      - name: 🛠️ Retrieve Zone Dump and generate .png Visualization.
         shell: bash
         run: |
           dnsviz probe -s 8.8.8.8 -R SOA,A,AAAA,CAA,CDS,CDNSKEY,LOC,HTTPS,MX,NS,TXT coresecret.dev >| coresecret.dev.json
           dnsviz graph -T png < coresecret.dev.json >| docs/SECURITY/coresecret.dev.png
 
-      - name: Stage generated files.
+      - name: 🚧 Stash local changes (including untracked).
         shell: bash
-        run: |
-          git add docs/SECURITY/*.png
         env:
           GIT_SSH_COMMAND: "ssh -p 42842"
-
-      - name: Commit and Sign changes.
-        shell: bash
         run: |
+          set -euo pipefail
+          ### Temporarily store any local modifications or untracked files.
+          git stash push --include-untracked -m "ci-temp" || echo "✔️ Nothing to stash."
+
+      - name: 🔄 Sync with remote before commit using merge strategy.
+        shell: bash
+        env:
+          GIT_SSH_COMMAND: "ssh -p 42842"
+        run: |
+          set -euo pipefail
           export GNUPGHOME="$(pwd)/.gnupg"
-          git commit -S -m "DEPLOY BOT: Auto-Generate DNSSEC Status [skip ci]" || echo "No Changes, nothing to Sign or to Commit."
-        env:
-          GIT_SSH_COMMAND: "ssh -p 42842"
 
-      - name: Push back to Repository.
+          echo "🔄 Fetching origin/master ..."
+          git fetch origin master
+
+          echo "🔁 Merging origin/master into current branch ..."
+          git merge --no-edit origin/master || echo "✔️ Already up to date or fast-forward."
+
+          echo "📋 Post-merge status :"
+          git status
+          git log --oneline -n 5
+
+      - name: 🛠️ Restore stashed changes.
         shell: bash
-        run: |
-          git push origin HEAD:${GITHUB_REF_NAME}
         env:
           GIT_SSH_COMMAND: "ssh -p 42842"
-# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=yaml
+        run: |
+          set -euo pipefail
+          ### Apply previously stashed changes.
+          git stash pop || echo "✔️ Nothing to pop."
+
+      - name: 📦 Stage generated files.
+        shell: bash
+        env:
+          GIT_SSH_COMMAND: "ssh -p 42842"
+        run: |
+          set -euo pipefail
+          git add docs/SECURITY/*.png || echo "✔️ Nothing to add."
+
+      - name: 🔑 Commit and sign changes with CI metadata.
+        shell: bash
+        env:
+          GIT_SSH_COMMAND: "ssh -p 42842"
+        run: |
+          set -euo pipefail
+          export GNUPGHOME="$(pwd)/.gnupg"
+
+          if git diff --cached --quiet; then
+            echo "✔️ No staged changes to commit."
+          else
+            echo "📝 Committing changes with GPG signature ..."
+
+            ### CI Metadata
+            TIMESTAMP_UTC="$(date -u +'%Y-%m-%dT%H:%M:%SZ')"
+            HOSTNAME="$(hostname -f || hostname)"
+            GIT_SHA="$(git rev-parse --short HEAD)"
+            GIT_REF="$(git symbolic-ref --short HEAD || echo detached)"
+            WORKFLOW_ID="${GITHUB_WORKFLOW:-render-md-to-html.yaml}"
+            CI_HEADER="X-CI-Metadata: ${GIT_REF}@${GIT_SHA} at ${TIMESTAMP_UTC} on ${HOSTNAME}"
+
+            COMMIT_MSG="DEPLOY BOT   : 🛡️ Auto-Generate DNSSEC Status [skip ci]
+
+          ${CI_HEADER}
+
+          Generated at : ${TIMESTAMP_UTC}
+          Runner Host  : ${HOSTNAME}
+          Workflow ID  : ${WORKFLOW_ID}
+          Git Commit   : ${GIT_SHA} HEAD -> ${GIT_REF}
+          "
+
+            echo "🔏 Commit message :"
+            echo "${COMMIT_MSG}"
+            git commit -S -m "${COMMIT_MSG}"
+          fi
+
+      - name: 🔁 Push back to repository.
+        shell: bash
+        env:
+          GIT_SSH_COMMAND: "ssh -p 42842"
+        run: |
+          set -euo pipefail
+          echo "📤 Pushing changes to ${GITHUB_REF_NAME} ..."
+          git push origin HEAD:${GITHUB_REF_NAME}
+      # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=yaml

.gitea/workflows/render-dot-to-png.yaml

@@ -0,0 +1,215 @@
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.live.builder
+# SPDX-Security-Contact: security@coresecret.eu
+
+# Version Master V8.13.142.2025.10.14
+
+name: 🔁 Render Graphviz Diagrams.
+
+permissions:
+  contents: write
+
+on:
+  push:
+    branches:
+      - master
+    paths:
+      - "**/*.gv"
+      - "**/*.dot"
+
+jobs:
+  build-graphiz-diagrams:
+    name: 🔁 Render Graphviz Diagrams.
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: ⚙️ Preparing SSH Setup, SSH Deploy Key, Known Hosts, .config.
+        shell: bash
+        run: |
+          set -euo pipefail
+          var_wait=$(( RANDOM % 33 ))
+          printf "⏳ Waiting %s seconds to desynchronize parallel workflows...\n" "${var_wait}"
+          sleep "${var_wait}"
+
+          rm -rf ~/.ssh && mkdir -m700 ~/.ssh
+
+          ### Private Key
+          echo "${{ secrets.SSH_MSW_DEPLOY_CORESECRET_DEV }}" >| ~/.ssh/id_ed25519
+          chmod 600 ~/.ssh/id_ed25519
+
+          ### Scan git.coresecret.dev to fill ~/.ssh/known_hosts
+          ssh-keyscan -p 42842 git.coresecret.dev >| ~/.ssh/known_hosts
+          chmod 600 ~/.ssh/known_hosts
+
+          ### Generate SSH Config for git.coresecret.dev Custom-Port
+          cat <<EOF >| ~/.ssh/config
+          Host git.coresecret.dev
+            HostName git.coresecret.dev
+            Port 42842
+            IdentityFile ~/.ssh/id_ed25519
+            StrictHostKeyChecking yes
+            UserKnownHostsFile ~/.ssh/known_hosts
+          EOF
+          chmod 600 ~/.ssh/config
+
+      ### https://github.com/actions/checkout/issues/1843
+      - name: 🛠️ Using manual clone via SSH to circumvent Gitea SHA-256 object issues.
+        shell: bash
+        env:
+          ### GITHUB_REF_NAME contains the branch name from the push event.
+          GITHUB_REF_NAME: ${{ github.ref_name }}
+        run: |
+          set -euo pipefail
+          git clone --branch "${GITHUB_REF_NAME}" ssh://git@git.coresecret.dev:42842/msw/CISS.debian.live.builder.git .
+          git fetch --unshallow || echo "Nothing to fetch - already full clone."
+
+      - name: 🛠️ Cleaning the workspace.
+        shell: bash
+        run: |
+          set -euo pipefail
+          git reset --hard
+          git clean -fd
+
+      - name: ⚙️ Importing the 'CI PGP DEPLOY ONLY' key.
+        shell: bash
+        run: |
+          set -euo pipefail
+          ### GPG-Home relative to the Runner Workspace to avoid changing global files.
+          export GNUPGHOME="$(pwd)/.gnupg"
+          mkdir -m 700 "${GNUPGHOME}"
+          echo "${{ secrets.PGP_MSW_DEPLOY_CORESECRET_DEV }}" >| ci-bot.sec.asc
+          gpg --batch --import ci-bot.sec.asc
+          ### Trust the key automatically
+          KEY_ID=$(gpg --list-keys --with-colons | awk -F: '/^pub:/ {print $5}')
+          echo "trust-model always" >| "${GNUPGHOME}/gpg.conf"
+
+      - name: ⚙️ Configuring Git for signed CI/DEPLOY commits.
+        shell: bash
+        run: |
+          set -euo pipefail
+          export GNUPGHOME="$(pwd)/.gnupg"
+          git config user.name "Marc S. Weidner BOT"
+          git config user.email "msw+bot@coresecret.dev"
+          git config commit.gpgsign true
+          git config gpg.program gpg
+          git config gpg.format openpgp
+
+      - name: ⚙️ Convert APT sources to HTTPS.
+        shell: bash
+        run: |
+          set -euo pipefail
+          sed -i 's|http://\(archive\.ubuntu\.com\|security\.ubuntu\.com\)|https://\1|g' /etc/apt/sources.list
+          sed -i 's|http://\(archive\.ubuntu\.com\|security\.ubuntu\.com\)|https://\1|g' /etc/apt/sources.list.d/*.list || true
+
+      - name: 🛠️ Install Graphviz.
+        shell: bash
+        run: |
+          set -euo pipefail
+          sudo apt-get update
+          sudo apt-get install -y graphviz
+
+      - name: 🛠️ Render all .dot / .gv to PNG.
+        shell: bash
+        run: |
+          set -euo pipefail
+          find . -type f \( -name "*.dot" -o -name "*.gv" \) | while read file; do
+            out="${file%.*}.png"
+            dot -Tpng "${file}" -o "${out}"
+          done
+
+      - name: 🚧 Stash local changes (including untracked).
+        shell: bash
+        env:
+          GIT_SSH_COMMAND: "ssh -p 42842"
+        run: |
+          set -euo pipefail
+          ### Temporarily store any local modifications or untracked files.
+          git stash push --include-untracked -m "ci-temp" || echo "✔️ Nothing to stash."
+
+      - name: 🔄 Sync with remote before commit using merge strategy.
+        shell: bash
+        env:
+          GIT_SSH_COMMAND: "ssh -p 42842"
+        run: |
+          set -euo pipefail
+          export GNUPGHOME="$(pwd)/.gnupg"
+
+          echo "🔄 Fetching origin/master ..."
+          git fetch origin master
+
+          echo "🔁 Merging origin/master into current branch ..."
+          git merge --no-edit origin/master || echo "✔️ Already up to date or fast-forward."
+
+          echo "📋 Post-merge status :"
+          git status
+          git log --oneline -n 5
+
+      - name: 🛠️ Restore stashed changes.
+        shell: bash
+        env:
+          GIT_SSH_COMMAND: "ssh -p 42842"
+        run: |
+          set -euo pipefail
+          ### Apply previously stashed changes.
+          git stash pop || echo "✔️ Nothing to pop."
+
+      - name: 📦 Stage generated files.
+        shell: bash
+        env:
+          GIT_SSH_COMMAND: "ssh -p 42842"
+        run: |
+          set -euo pipefail
+          git add *.png || echo "✔️ Nothing to add."
+
+      - name: 🔑 Commit and sign changes with CI metadata.
+        shell: bash
+        env:
+          GIT_SSH_COMMAND: "ssh -p 42842"
+        run: |
+          set -euo pipefail
+          export GNUPGHOME="$(pwd)/.gnupg"
+
+          if git diff --cached --quiet; then
+            echo "✔️ No staged changes to commit."
+          else
+            echo "📝 Committing changes with GPG signature ..."
+
+            ### CI Metadata
+            TIMESTAMP_UTC="$(date -u +'%Y-%m-%dT%H:%M:%SZ')"
+            HOSTNAME="$(hostname -f || hostname)"
+            GIT_SHA="$(git rev-parse --short HEAD)"
+            GIT_REF="$(git symbolic-ref --short HEAD || echo detached)"
+            WORKFLOW_ID="${GITHUB_WORKFLOW:-render-md-to-html.yaml}"
+            CI_HEADER="X-CI-Metadata: ${GIT_REF}@${GIT_SHA} at ${TIMESTAMP_UTC} on ${HOSTNAME}"
+
+            COMMIT_MSG="DEPLOY BOT   : 🔁 Auto-Generate PNG from *.dot. [skip ci]
+
+          ${CI_HEADER}
+
+          Generated at : ${TIMESTAMP_UTC}
+          Runner Host  : ${HOSTNAME}
+          Workflow ID  : ${WORKFLOW_ID}
+          Git Commit   : ${GIT_SHA} HEAD -> ${GIT_REF}
+          "
+
+            echo "🔏 Commit message :"
+            echo "${COMMIT_MSG}"
+            git commit -S -m "${COMMIT_MSG}"
+          fi
+
+      - name: 🔁 Push back to repository.
+        shell: bash
+        env:
+          GIT_SSH_COMMAND: "ssh -p 42842"
+        run: |
+          set -euo pipefail
+          echo "📤 Pushing changes to ${GITHUB_REF_NAME} ..."
+          git push origin HEAD:${GITHUB_REF_NAME}
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=yaml

.gitignore

@@ -2,7 +2,7 @@
 # SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
@@ -16,5 +16,6 @@ target/
 *.DS_Store
 *.log
 *.ps1
+config.mk
 Thumbs.db
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf

.shellcheckrc

@@ -0,0 +1,28 @@
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-06-17; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.installer.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.installer
+# SPDX-Security-Contact: security@coresecret.eu
+
+encoding=utf-8
+external-sources=true
+shell=bash
+source-path=~/lib
+source-path=~/scripts
+source-path=~/var
+
+enable=avoid-nullary-conditions
+enable=check-extra-masked-returns
+enable=check-set-e-suppressed
+enable=check-unassigned-uppercase
+enable=deprecate-which
+enable=quote-safe-variables
+enable=require-double-brackets
+enable=require-variable-braces
+
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf

.version.properties

@@ -2,7 +2,7 @@
 # SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
@@ -10,10 +10,10 @@
 # SPDX-Security-Contact: security@coresecret.eu
 properties_SPDX-Version="3.0"
 properties_SPDX-ExternalRef="GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git"
-properties_SPDX-FileCopyrightText="2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>"
+properties_SPDX-FileCopyrightText="2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>"
 properties_SPDX-License-Identifier="EUPL-1.2 OR LicenseRef-CCLA-1.0"
-properties_SPDX-LicenseComment="This file is part of the CISS.hardened.installer framework."
+properties_SPDX-LicenseComment="This file is part of the CISS.debian.installer.secure framework."
 properties_SPDX-PackageName="CISS.debian.live.builder"
 properties_SPDX-Security-Contact="security@coresecret.eu"
-properties_version="V8.03.127.2025.06.02"
-# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf
+properties_version="V8.13.142.2025.10.14"
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf

CISS.debian.live.builder.spdx

@@ -6,7 +6,7 @@ Creator: Person: Marc S. Weidner (Centurion Intelligence Consulting Agency)
 Created: 2025-05-07T12:00:00Z
 Package: CISS.debian.live.builder
 PackageName: CISS.debian.live.builder
-PackageVersion: Master V8.03.127.2025.06.02
+PackageVersion: Master V8.13.142.2025.10.14
 PackageSupplier: Organization: Centurion Intelligence Consulting Agency
 PackageDownloadLocation: https://git.coresecret.dev/msw/CISS.debian.live.builder
 PackageHomePage: https://git.coresecret.dev/msw/CISS.debian.live.builder
@@ -20,4 +20,4 @@ License: LicenseRef-CCLA-1.0
 LicenseID: LicenseRef-CCLA-1.0
 LicenseName: Centurion Commercial License Agreement 1.0
 LicenseCrossReference: https://coresecret.eu/imprint/licenses/
-# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf

LINTER_RESULTS.txt

@@ -0,0 +1,16 @@
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-10-14; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.live.builder
+# SPDX-Security-Contact: security@coresecret.eu
+
+This file was automatically generated by the DEPLOY BOT on: "2025-10-14T19:37:03Z"
+
+⚠️ The last linter check was NOT successful. ⚠️
+
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=text

LIVE_ISO.public

@@ -1,25 +1,27 @@
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-06-01; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-14; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-This file was automatically generated by the DEPLOY BOT on: "2025-06-02T07:05:05Z".
+This file was automatically generated by the DEPLOY BOT on: "2025-10-14T22:23:27Z"
 
 CISS.debian.live.builder ISO :
-  "ciss-debian-live-2025_06_02T06_28_22Z-amd64.hybrid.iso"
+  "ciss-debian-live-2025_10_14T21_30_07Z-amd64.hybrid.iso"
 CISS.debian.live.builder ISO sha512 :
-  "ciss-debian-live-2025_06_02T06_28_22Z-amd64.hybrid.iso.sha512"
+  442037d11eb48f4adbd1a3da17cf36062ec6be816627c38fe814458840020f212c551b96d5e785c4372fa09fc11fd9529f34166530b1e1f5ce9335abadb5f771
 CISS.debian.live.builder ISO sha512 sign :
   -----BEGIN PGP SIGNATURE-----
 
-iHUEABYKAB0WIQSqYnPMNKGz69afyHA85KY4hzOwIQUCaD1NIQAKCRA85KY4hzOw
-IUI1AQCy+C8u2sxrulp9oEsYNPEQLnVuyqGxlsaGF9soF+ay4AD/cjMt0sNK/SUd
-Rt0J3YmtZbbXgIAaUyAMKMc3Bf3nHgc=
-=Z0iZ
+iHUEABYKAB0WIQSqYnPMNKGz69afyHA85KY4hzOwIQUCaO7NXwAKCRA85KY4hzOw
+IT3LAP4uP8glLMDEpUntKJQTiPqSYjGUyIFoKmsgALGPJcnnoQD/fcz4Mq12mF32
+jf4ETKQBqlxuQyLTPvPFhLsrBbDD0AI=
+=/UNR
 -----END PGP SIGNATURE-----
+
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=text

LIVE_ISO_TRIXIE_0.private

@@ -0,0 +1,27 @@
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-10-14; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.live.builder
+# SPDX-Security-Contact: security@coresecret.eu
+
+This file was automatically generated by the DEPLOY BOT on: "2025-10-14T20:32:28Z"
+
+CISS.debian.live.builder ISO :
+  "ciss-debian-live-2025_10_14T19_36_59Z-amd64.hybrid.iso"
+CISS.debian.live.builder ISO sha512 :
+  57559f9b9c5e50dad6a5b2023d992c26b8f4d25dd0d45ffa5cfd479ee623287e2c2eead70016267b848c5910db5ba5c4e2dfeeb12cca6f59fe455dad886c51d9
+CISS.debian.live.builder ISO sha512 sign :
+  -----BEGIN PGP SIGNATURE-----
+
+iHUEABYKAB0WIQSqYnPMNKGz69afyHA85KY4hzOwIQUCaO6zXAAKCRA85KY4hzOw
+Idq2AQDRmgHRGnX1bn+cNV5JirecSke0IAwlAjEXOl4tFoQlewEA0s2R1A3OQjIq
+fAhdl2wltVNT5+jUg6EUj3FE3kVPaQo=
+=fmxg
+-----END PGP SIGNATURE-----
+
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=text

LIVE_ISO_TRIXIE_1.private

@@ -0,0 +1,27 @@
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-10-14; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.live.builder
+# SPDX-Security-Contact: security@coresecret.eu
+
+This file was automatically generated by the DEPLOY BOT on: "2025-10-14T21:28:34Z"
+
+CISS.debian.live.builder ISO :
+  "ciss-debian-live-2025_10_14T20_33_51Z-amd64.hybrid.iso"
+CISS.debian.live.builder ISO sha512 :
+  4a47a1ed0986b67774047b2bfc6fdd53753fa8f301f8376b23ccde1f5187aeffbca7fce3194a3d7b61278630291a1d2d954a289da712c064326eb6b7020c228c
+CISS.debian.live.builder ISO sha512 sign :
+  -----BEGIN PGP SIGNATURE-----
+
+iHUEABYKAB0WIQSqYnPMNKGz69afyHA85KY4hzOwIQUCaO7AggAKCRA85KY4hzOw
+IWpdAP4xCxUP4V0lOBE1u7+wEOoEmXiRC10Va4Hf2UXjH1BSVwEAsz/cMaGt+rJT
+q0i+5EftPavvIst48aXQsp7QKjyNewM=
+=x3/T
+-----END PGP SIGNATURE-----
+
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=text

README.html

@@ -1,405 +0,0 @@
-<p><a href="https://git.coresecret.dev/msw/CISS.debian.live.builder"><img src="https://badges.coresecret.dev/badge/Release-V8.03.127.2025.06.02-white?style=plastic&amp;logo=linux&amp;logoColor=white&amp;logoSize=auto&amp;label=Release&amp;color=%23FCC624" alt="Static Badge" /></a>   <a href="https://eupl.eu/1.2/en/"><img src="https://badges.coresecret.dev/badge/Licence-EUPL1.2-white?style=plastic&amp;logo=europeanunion&amp;logoColor=white&amp;logoSize=auto&amp;label=Licence&amp;color=%23003399" alt="Static Badge" /></a>   <a href="https://opensource.org/license/eupl-1-2"><img src="https://badges.coresecret.dev/badge/opensourceinitiative-Compliant-white?style=plastic&amp;logo=opensourceinitiative&amp;logoColor=white&amp;logoSize=auto&amp;label=OSI&amp;color=%233DA639" alt="Static Badge" /></a>   <a href="https://www.gnu.org/software/bash/"><img src="https://badges.coresecret.dev/badge/Bash-V5.2.15-white?style=plastic&amp;logo=gnubash&amp;logoColor=white&amp;logoSize=auto&amp;label=Bash&amp;color=%234EAA25" alt="Static Badge" /></a>   <a href="https://shellcheck.net/"><img src="https://badges.coresecret.dev/badge/shellcheck-passed-white?style=plastic&amp;logo=gnubash&amp;logoColor=white&amp;logoSize=auto&amp;label=shellcheck&amp;color=%234EAA25" alt="Static Badge" /></a>   <a href="https://github.com/mvdan/sh"><img src="https://badges.coresecret.dev/badge/shellformat-passed-white?style=plastic&amp;logo=google&amp;logoColor=white&amp;logoSize=auto&amp;label=shellformat&amp;color=%234285F4" alt="Static Badge" /></a>   <a href="https://google.github.io/styleguide/shellguide.html"><img src="https://badges.coresecret.dev/badge/Shellstyle-Google-white?style=plastic&amp;logo=google&amp;logoColor=white&amp;logoSize=auto&amp;label=Shellstyle&amp;color=%234285F4" alt="Static Badge" /></a>   <a href="https://docs.gitea.com/"><img src="https://badges.coresecret.dev/badge/Gitea-1.23.8-white?style=plastic&amp;logo=gitea&amp;logoColor=white&amp;logoSize=auto&amp;label=gitea&amp;color=%23609926" alt="Static Badge" /></a>   <a href="https://www.jetbrains.com/store/?section=personal&amp;billing=yearly"><img src="https://badges.coresecret.dev/badge/IntelliJ-2025.1.1.1-white?style=plastic&amp;logo=intellijidea&amp;logoColor=white&amp;logoSize=auto&amp;label=IntelliJ&amp;color=%23000000" alt="Static Badge" /></a>   <a href="https://keepassxc.org/"><img src="https://badges.coresecret.dev/badge/keepassxc-2.7.10-white?style=plastic&amp;logo=keepassxc&amp;logoColor=white&amp;logoSize=auto&amp;label=KeePassXC&amp;color=%236CAC4D" alt="Static Badge" /></a>   <a href="https://www.netcup.com/de"><img src="https://badges.coresecret.dev/badge/netcup-Netcup-white?style=plastic&amp;logo=netcup&amp;logoColor=white&amp;logoSize=auto&amp;label=powered&amp;color=%23056473" alt="Static Badge" /></a>   <a href="https://coresecret.eu/"><img src="https://badges.coresecret.dev/badge/powered-Centurion-white?style=plastic&amp;logo=europeanunion&amp;logoColor=white&amp;logoSize=auto&amp;label=powered&amp;color=%230F243E" alt="Static Badge" /></a>   <a href="https://x.com/coresecret_eu"><img src="https://badges.coresecret.dev/badge/SocialMedia-@coresecret_eu-white?style=plastic&amp;logo=x&amp;logoColor=white&amp;logoSize=auto&amp;label=SocialMedia&amp;color=%23000000" alt="Static Badge" /></a>   <a href="https://coresecret.eu/spenden/#sepa"><img src="https://badges.coresecret.dev/badge/Donation-Donation-white?style=plastic&amp;logo=sepa&amp;logoColor=white&amp;logoSize=auto&amp;label=&amp;color=%230F243E" alt="Static Badge" /></a>   <a href="https://coresecret.eu/spenden/#bitcoin"><img src="https://badges.coresecret.dev/badge/bitcoin-Bitcoin-white?style=plastic&amp;logo=bitcoin&amp;logoColor=white&amp;logoSize=auto&amp;label=Donation&amp;color=%23F7931A" alt="Static Badge" /></a>   <a href="https://coresecret.eu/contact/#simplex"><img src="https://badges.coresecret.dev/badge/simplex-Simplex-white?style=plastic&amp;logo=simplex&amp;logoColor=white&amp;logoSize=auto&amp;label=Contact&amp;color=%23000000" alt="Static Badge" /></a>  </p>
-<h1 id="1-cissdebianlivebuilder">1. CISS.debian.live.builder</h1>
-<p><strong>Centurion Intelligence Consulting Agency Information Security Standard</strong><br> <em>Debian Live Build Generator for hardened live environment and CISS Debian Installer</em><br> <strong>Master Version</strong>: 8.02<br> <strong>Build</strong>: V8.03.145.2025.06.02<br></p>
-<p>This shell wrapper automates the creation of a Debian Bookworm live ISO hardened according to the latest best practices in server and service security. It integrates into your build pipeline to deliver an isolated, robust environment suitable for cloud deployment or unattended installations via the forthcoming <code>CISS.debian.installer</code>.</p>
-<p>Check out more:</p>
-<ul>
-<li><a href="https://coresecret.eu/cnet/">CenturionNet Services</a></li>
-<li><a href="https://dns.eddns.eu/">CenturionDNS Resolver</a></li>
-<li><a href="https://dns.eddns.eu/blocklists/centurion_titanium_ultimate.txt">CenturionDNS Blocklist</a></li>
-<li><a href="https://uptime.coresecret.eu/">CenturionNet Status</a></li>
-<li><a href="https://talk.e2ee.li/">CenturionMeet</a></li>
-<li><a href="https://coresecret.eu/contact/">Contact the author</a></li>
-</ul>
-<h2 id="11-preliminary-remarks">1.1. Preliminary Remarks</h2>
-<h3 id="111-hsm">1.1.1. HSM</h3>
-<p>Please note that all my signing keys are stored in an HSM and that the signing environment is air-gapped. The next step is to move to a room-gapped environment. ^^</p>
-<h3 id="112-hsts-and-dnssec">1.1.2. HSTS and DNSSEC</h3>
-<p>Please note that <code>coresecret.dev</code> is included in the <a href="https://hstspreload.org/">(HSTS Preload List)</a> and always serves the headers:</p>
-<pre class="nginx"><code>add_header Expect-CT                 &quot;max-age=86400, enforce&quot;                       always;
-add_header Strict-Transport-Security &quot;max-age=63072000; includeSubDomains; preload&quot; always;</code></pre>
-<p>Additionally, the entire zone is dual-signed with DNSSEC. See the current DNSSEC status at <a href="https://git.coresecret.dev/msw/CISS.debian.live.builder/src/branch/master/docs/AUDIT_DNSSEC.html">DNSSEC Audit Report</a></p>
-<h2 id="12-immutable-source-of-truth-system">1.2. Immutable Source-of-Truth System</h2>
-<p>This live ISO establishes a secure, fully deterministic, integrity self-verifying boot environment based entirely on static source-code definitions. All configurations, system components, and installation routines are embedded during build time and locked for runtime immutability. This ensures that the live environment functions as a trusted <strong>Source of Truth</strong> — not only for boot-time operations, but for deploying entire systems in a secure and reproducible way.<br></p>
-<p>Once booted, the environment optionally launches a fully scripted installer, via the forthcoming <code>CISS.debian.installer</code>, yet to deploy, that provisions the target system (the hardware the DVD is running on). The installer pulls no external dependencies besides of the necessary Debian debootstrap and Debian Packages and never exposes the target system in a not secure manner to the internet during installation. It operates strictly from within the verified image content, providing fully secured provisioning. Combined with checksum verification, <strong>activated by default</strong>, at boot and strict firewall defaults, this architecture guarantees that what is executed has not been tampered with and corresponds exactly to the intended source definition.<br></p>
-<p>An even more secure deployment variant — an unattended and headless version — can be built without any active network interface or shell-access, also via the forthcoming <code>CISS.debian.installer</code>. Such a version performs all verification steps autonomously, provisions the target device from embedded source artifacts, and reboots into a fully encrypted system image. The system then awaits the decryption passphrase input via an embedded Dropbear SSH server (SSH PubKey only) in the initramfs, exposing no ports without cryptographic hardened access, while also the <code>/boot</code> partition could be encrypted via the built-in support of <code>grub2 (2.12-1~bpo12+1)</code>.<br></p>
-<p>This approach provides a fully reproducible, audit-friendly, and tamper-resistant provisioning workflow rooted entirely in source-defined infrastructure logic.<br></p>
-<p>After build and configuration, the following audit reports can be generated:</p>
-<ul>
-<li><strong>Haveged Audit Report</strong>: Validates entropy daemon health and confirms '/dev/random' seeding performance. Type <code>chkhvg</code> at the prompt. See example report: <a href="https://git.coresecret.dev/msw/CISS.debian.live.builder/src/branch/master/docs/AUDIT_HAVEGED.html">Haveged Audit Report</a></li>
-<li><strong>Lynis Audit Report</strong>: Outputs a detailed security score and recommendations, confirming a 91%+ hardening baseline. Type <code>lsadt</code> at the prompt. See example report: <a href="https://git.coresecret.dev/msw/CISS.debian.live.builder/src/branch/master/docs/AUDIT_LYNIS.html">Lynis Audit Report</a></li>
-<li><strong>SSH Audit Report</strong>: Verifies SSH daemon configuration against the latest best-practice cipher, KEX, and MAC recommendations. Type <code>ssh-audit &lt;IP&gt;:&lt;PORT&gt;</code>. See example report: <a href="https://git.coresecret.dev/msw/CISS.debian.live.builder/src/branch/master/docs/AUDIT_SSH.html">SSH Audit Report</a></li>
-</ul>
-<h2 id="12-preview">1.2. Preview</h2>
-<p><img src="/docs/screenshots/CISS.debian.live.builder_preview.jpeg" alt="CISS.debian.live.builder" /></p>
-<h2 id="13-caution-significant-information-for-those-considering-using-d-i">1.3. Caution. Significant information for those considering using D-I.</h2>
-<p><strong>The Debian Installer (d-i) will ALWAYS boot a new system.</strong><br></p>
-<p>Regardless of whether you start it:</p>
-<ul>
-<li>via the boot menu of your Live ISO (grub, isolinux) like <strong>CISS.debian.live.builder</strong>,</li>
-<li>via kexec in the running system,</li>
-<li>via the debian-installer-launcher package,</li>
-<li>or even via a graphical installer shortcut.</li>
-</ul>
-<p>The following happens in all cases:</p>
-<ul>
-<li>The installer kernel (/install/vmlinuz) + initrd.gz are started.</li>
-<li>The existing live system is exited.</li>
-<li>The memory is overwritten.</li>
-<li>All running processes – e.g., firewall, hardened SSH access, etc. pp. – cease to exist.</li>
-</ul>
-<p>The Debian Installer loads:</p>
-<ul>
-<li>its own kernel,</li>
-<li>its own initramfs,</li>
-<li>its own minimal root filesystem (BusyBox + udeb packages),</li>
-<li>no SSH access (unless explicitly enabled via preseed)</li>
-<li>no firewall, AppArmor, logging, etc. pp.,</li>
-<li>it disables all running network services, even if you were previously in the live system.</li>
-</ul>
-<p>This means function status of the <strong>CISS.2025.debian.live.builder</strong> ISO after d-i start:</p>
-<ul>
-<li>ufw, iptables, nftables ✘ disabled, not loaded,</li>
-<li>sshd with hardening ✘ stopped (processes gone),</li>
-<li>the running kernel ✘ replaced,</li>
-<li>Logging (rsyslog, journald) ✘ not active,</li>
-<li>preseed control over the network is possible (but without any protection).</li>
-</ul>
-<h1 id="2-features--rationale">2. Features &amp; Rationale</h1>
-<p>Below is a breakdown of each hardening component, with a summary of why each is critical to your security posture.</p>
-<h2 id="21-kernel-hardening">2.1. Kernel Hardening</h2>
-<h3 id="211-boot-parameters">2.1.1. Boot Parameters</h3>
-<ul>
-<li><strong>Description</strong>: Customizes kernel command-line flags to disable unused features and enable mitigations.</li>
-<li><strong>Key Parameters</strong>:
-<ul>
-<li><code>audit_backlog_limit=8192</code>: Ensures the audit subsystem can queue up to 8192 events to avoid dropped logs under heavy loads.</li>
-<li><code>audit=1</code>: Enables kernel auditing from boot to record system calls and security events.</li>
-<li><code>cfi=kcfi</code>: Activates kernel control-flow integrity using kCFI to protect against control-flow hijacking.</li>
-<li><code>debugfs=off</code>: Disables debugfs to prevent non-privileged access to kernel internals.</li>
-<li><code>efi=disable_early_pci_dma</code>: Stops early PCI DMA under EFI to mitigate DMA-based attacks during boot.</li>
-<li><code>efi_no_storage_paranoia</code>: Disables extra EFI storage checks to streamline boot without compromising expected storage integrity.</li>
-<li><code>hardened_usercopy=1</code>: Enables stringent checks on copy operations between user and kernel space to prevent buffer overflows.</li>
-<li><code>ia32_emulation=0</code>: Turns off 32-bit compatibility modes to reduce attack surface on 64-bit hosts.</li>
-<li><code>init_on_alloc=1</code>: Zeroes memory on allocation to prevent leakage of previous data.</li>
-<li><code>init_on_free=1</code>: Initializes memory on free to catch use-after-free bugs.</li>
-<li><code>iommu=force</code>: Enforces IOMMU for all devices to isolate DMA-capable hardware.</li>
-<li><code>kfence.sample_interval=100</code>: Configures the kernel fence memory safety tool to sample every 100 allocations.</li>
-<li><code>kvm.nx_huge_pages=force</code>: Enforces non-executable huge pages in KVM to mitigate code injection.</li>
-<li><code>l1d_flush=on</code>: Flushes L1 data cache on context switch to mitigate L1D vulnerabilities.</li>
-<li><code>lockdown=confidentiality</code>: Puts the kernel in confidentiality lockdown to restrict direct hardware access.</li>
-<li><code>loglevel=0</code>: Suppresses non-critical kernel messages to reduce information leakage.</li>
-<li><code>mce=0</code>: Disables machine check exceptions to prevent side-channel data leaks from hardware error reporting.</li>
-<li><code>mitigations=auto,nosmt</code>: Enables all automatic CPU mitigations and disables SMT to reduce side-channel risks.</li>
-<li><code>mmio_stale_data=full,nosmt</code>: Ensures stale MMIO data is fully flushed and disables SMT for added protection.</li>
-<li><code>oops=panic</code>: Forces a kernel oops to trigger a panic, preventing the system from running in an inconsistent state.</li>
-<li><code>page_alloc.shuffle=1</code>: Randomizes physical page allocation to hinder memory layout prediction attacks.</li>
-<li><code>page_poison=1</code>: Fills freed pages with a poison pattern to detect use-after-free.</li>
-<li><code>panic=-1</code>: Disables automatic reboot on panic to preserve the system state for forensic analysis.</li>
-<li><code>pti=on</code>: Enables page table isolation to mitigate Meltdown attacks.</li>
-<li><code>random.trust_bootloader=off</code>: Prevents trusting entropy provided by the bootloader.</li>
-<li><code>random.trust_cpu=off</code>: Disables trusting CPU-provided randomness, enforcing external entropy sources.</li>
-<li><code>randomize_kstack_offset=on</code>: Randomizes the kernel stack offset on each syscall entry to harden against stack probing.</li>
-<li><code>randomize_va_space=2</code>: Enables full address space layout randomization (ASLR) for user space.</li>
-<li><code>retbleed=auto,nosmt</code>: Enables automatic RETBLEED mitigations and disables SMT for better side-channel resistance.</li>
-<li><code>rodata=on</code>: Marks kernel read-only data sections to prevent runtime modification.</li>
-<li><code>tsx=off</code>: Disables Intel TSX extensions to eliminate related speculative execution vulnerabilities.</li>
-<li><code>vdso32=0</code>: Disables 32-bit vDSO to prevent unintended cross-mode calls.</li>
-<li><code>vsyscall=none</code>: Disables legacy vsyscall support to close a potential attack vector.</li>
-</ul></li>
-<li><strong>Rationale</strong>: Ensures early activation of protections, reducing exposure to CPU vulnerabilities before the system fully boots.</li>
-</ul>
-<h3 id="212-cpu-vulnerability-mitigations">2.1.2. CPU Vulnerability Mitigations</h3>
-<ul>
-<li><strong>Description</strong>: Enables all known kernel-level mitigations (Spectre, Meltdown, MDS, L1TF, etc.).</li>
-<li><strong>Rationale</strong>: Prevents side-channel attacks that exploit speculative execution, which remain a high-risk vector in multi-tenant cloud environments.</li>
-</ul>
-<h3 id="213-kernel-self-protection">2.1.3. Kernel Self-Protection</h3>
-<ul>
-<li><strong>Description</strong>: Activates <code>CONFIG_DEBUG_RODATA</code>, <code>CONFIG_STRICT_MODULE_RWX</code>, and other self-protections.</li>
-<li><strong>Rationale</strong>: Hardens kernel memory regions against unauthorized writings and enforces stricter module loading policies.</li>
-</ul>
-<h3 id="214-local-kernel-hardening">2.1.4. Local Kernel Hardening</h3>
-<ul>
-<li><strong>Description</strong>: The wrapper <code>sysp()</code>provides a function to apply and audit local kernel hardening rules from <code>/etc/sysctl.d/99_local.hardened</code>:</li>
-</ul>
-<pre class="bash"><code>###########################################################################################
-# Globals: Wrapper for loading CISS.2025 hardened Kernel Parameters
-# Arguments:
-#  none
-###########################################################################################
-# shellcheck disable=SC2317
-sysp() {
-  sysctl -p /etc/sysctl.d/99_local.hardened
-  # sleep 1
-  sysctl -a | grep -E &#39;kernel|vm|net&#39; &gt; /var/log/sysctl_check&quot;$(date +&quot;%Y-%m-%d_%H:%M:%S&quot;)&quot;.log
-}</code></pre>
-<ul>
-<li><strong>Key measures loaded by this file include:</strong>
-<ul>
-<li>Disabling module loading <code>kernel.modules_disabled=1</code></li>
-<li>Restricting kernel pointers &amp; logs <code>kernel.kptr_restrict=2</code>, <code>kernel.dmesg_restrict=1</code>, <code>kernel.printk=3 3 3 3</code></li>
-<li>Disabling unprivileged BPF and userfaultfd</li>
-<li>Disabling kexec and unprivileged user namespaces</li>
-<li>Locking down ptrace scope <code>kernel.yama.ptrace_scope=2</code></li>
-<li>Protecting filesystem links and FIFOs <code>fs.protected_*</code></li>
-</ul></li>
-</ul>
-<p><strong>Warning</strong> Once applied, some hardening settings cannot be undone via <code>sysctl</code> without a reboot, and dynamic module loading remains disabled until the next boot. Automatic enforcement at startup is therefore omitted by design—run <code>sysp()</code> manually and plan a reboot to apply or revert these controls.</p>
-<h2 id="22-module-blacklisting">2.2. Module Blacklisting</h2>
-<ul>
-<li><strong>Description</strong>: Disables and blacklists non-essential or insecure kernel modules.</li>
-<li><strong>Rationale</strong>: Minimizes attack surface by preventing loads of drivers or modules not required by the live environment.</li>
-</ul>
-<h2 id="23-network-hardening">2.3. Network Hardening</h2>
-<ul>
-<li><strong>Description</strong>: Applies <code>sysctl</code> settings (e.g., <code>net.ipv4.conf.all.rp_filter=1</code>, <code>arp_ignore</code>, <code>arp_announce</code>) to restrict inbound/outbound traffic behaviors.</li>
-<li><strong>Rationale</strong>: Mitigates ARP spoofing, IP spoofing, and reduces the risk of man-in-the-middle on internal networks.</li>
-</ul>
-<h2 id="24-core-dump--kernel-hardening">2.4. Core Dump &amp; Kernel Hardening</h2>
-<ul>
-<li><strong>Description</strong>: Limits core dump generation paths, enforces <code>Yama</code> restrictions, and configures <code>kernel.kptr_restrict</code>.</li>
-<li><strong>Rationale</strong>: Prevents leakage of sensitive memory contents and reduces information disclosure from unintentional crash dumps.</li>
-</ul>
-<h2 id="25-entropy-collection-improvements">2.5. Entropy Collection Improvements</h2>
-<ul>
-<li><strong>Description</strong>: Installs and configures <code>haveged</code>, seeds <code>/dev/random</code> early.</li>
-<li><strong>Rationale</strong>: Cloud instances frequently suffer low entropy at the start; improving randomness ensures strong cryptographic key generation for SSH and other services.</li>
-</ul>
-<h2 id="26-permissions--authentication">2.6. Permissions &amp; Authentication</h2>
-<ul>
-<li><strong>Description</strong>: Sets strict directory and file permissions, integrates with PAM modules (e.g., <code>pam_faillock</code>).</li>
-<li><strong>Rationale</strong>: Enforces the principle of least privilege at file-system level and strengthens authentication policies.</li>
-</ul>
-<h2 id="27-high-security-baseline-lynis-audit">2.7. High-Security Baseline (Lynis Audit)</h2>
-<ul>
-<li><strong>Description</strong>: Run a baseline audit via <a href="https://cisofy.com/lynis/">Lynis</a> after build completion. The generated live environment consistently achieves a 91%+ score in Lynis security audits.</li>
-<li><strong>Rationale</strong>: Provides independent verification of security posture and flags any configuration drifts or missing hardening steps.</li>
-</ul>
-<h2 id="28-ssh-tunnel--access-security">2.8. SSH Tunnel &amp; Access Security</h2>
-<ul>
-<li><strong>Description</strong>: The SSH tunnel and access are secured through multiple layers of defense:
-<ul>
-<li><strong>Firewall Restriction</strong>: ufw allows connections only from defined jump host or VPN exit node IPs.</li>
-<li><strong>TCP Wrappers</strong>: <code>/etc/hosts.allow</code> and <code>/etc/hosts.deny</code> enforce an <code>ALL: ALL</code> deny policy, permitting only specified hosts.</li>
-<li><strong>One-Hit Ban</strong>: A custom Fail2Ban rule <code>/etc/fail2ban/jail.d/centurion-default.conf</code> immediately bans any host that touches closed ports.
-<ul>
-<li>Additionally, the <code>fail2ban</code> service is hardened as well according to: <a href="https://wiki.archlinux.org/title/fail2ban#Service_hardening">Arch Linux Wiki Fail2ban Hardening</a></li>
-</ul></li>
-<li><strong>SSH Ultra-Hardening</strong>: The <code>/etc/sshd_config</code> enforces strict cryptographic and connection controls with respect to <a href="https://www.ssh-audit.com/hardening_guides.html#debian_12">SSH Audit Guide Debian 12</a>:
-<ul>
-<li><code>RekeyLimit 1G 1h</code></li>
-<li><code>HostKey /etc/ssh/ssh_host_ed25519_key</code></li>
-<li><code>HostKey /etc/ssh/ssh_host_rsa_key (8192-bit RSA)</code></li>
-<li><code>PubkeyAuthentication yes</code></li>
-<li><code>PermitRootLogin prohibit-password</code></li>
-<li><code>PasswordAuthentication no</code></li>
-<li><code>PermitEmptyPasswords no</code></li>
-<li><code>LoginGraceTime 2m</code></li>
-<li><code>MaxAuthTries 3</code></li>
-<li><code>MaxSessions 2</code></li>
-<li><code>MaxStartups 08:64:16</code></li>
-<li><code>PerSourceMaxStartups 4</code></li>
-<li><code>RequiredRSASize 4096</code></li>
-<li><code>Ciphers aes256-gcm@openssh.com</code></li>
-<li><code>KexAlgorithms sntrup761x25519-sha512@openssh.com,sntrup761x25519-sha512,gss-curve25519-sha256-</code></li>
-<li><code>MACs hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com</code></li>
-</ul></li>
-</ul></li>
-<li><strong>Rationale</strong>: These measures ensure that only authorized hosts can establish SSH tunnels, with strict cryptographic and usage policies enforced. Minimizes brute force, passive sniffing, and reduces credentials' exposure by limiting protocol features to vetted algorithms.</li>
-</ul>
-<h2 id="29-ufw-hardening">2.9. UFW Hardening</h2>
-<ul>
-<li><strong>Description</strong>: Defaults to <code>deny incoming</code> and (optionally) <code>deny outgoing</code>; automatically opens only whitelisted ports.</li>
-<li><strong>Rationale</strong>: Implements a default-deny firewall, reducing lateral movement and data exfiltration risks immediately after deployment.</li>
-</ul>
-<h2 id="210-fail2ban-enhancements">2.10. Fail2Ban Enhancements</h2>
-<ul>
-<li><strong>Description</strong>:
-<ul>
-<li>Bans any connection to a closed port for 24 hours</li>
-<li>Automatically ignores designated bastion/jump host subnets</li>
-<li>Hardened via <code>systemd</code> policy override to limit privileges of the Fail2Ban service itself</li>
-</ul></li>
-<li><strong>Rationale</strong>: Provides proactive defense against port scans and brute-force attacks, while isolating the ban daemon in a minimal-privilege context.</li>
-</ul>
-<h2 id="211-ntpsec--chrony">2.11. NTPsec &amp; Chrony</h2>
-<ul>
-<li><strong>Description</strong>: Installs <code>chrony</code>, selects PTB NTPsec servers by default.</li>
-<li><strong>Rationale</strong>: Ensures tamper-resistant time synchronization, which is essential for log integrity, certificate validation, and forensic accuracy.</li>
-</ul>
-<h1 id="3-script-features--rationale">3. Script Features &amp; Rationale</h1>
-<h2 id="31-input-validation--security">3.1. Input Validation &amp; Security</h2>
-<ul>
-<li><strong>Description</strong>: All script arguments are validated using a robust input sanitizer.</li>
-<li><strong>Rationale</strong>: Prevents injection attacks and ensures only expected data types and values are processed.</li>
-</ul>
-<h2 id="32-debug-mode-with-detailed-logging">3.2. Debug Mode with Detailed Logging</h2>
-<ul>
-<li><p><strong>Description</strong>: A built-in debug mode outputs clear, timestamped logs including:</p>
-<ul>
-<li>Script Name and Path of called Function,</li>
-<li>Line Number,</li>
-<li>Function Name,</li>
-<li>Exit Code of the previous Command,</li>
-<li>Executed Command.</li>
-</ul></li>
-<li><p><strong>Rationale</strong>: Simplifies troubleshooting and provides precise error tracing.</p></li>
-</ul>
-<h2 id="33-secure-debug-logging">3.3. Secure Debug Logging</h2>
-<ul>
-<li><strong>Description</strong>: No hardcoded plaintext password fragments or sensitive artifacts appear in debug logs.</li>
-<li><strong>Rationale</strong>: Prevents accidental exposure of credentials during troubleshooting.</li>
-</ul>
-<h2 id="34-secure-password-handling">3.4. Secure Password Handling</h2>
-<ul>
-<li><strong>Description</strong>: Password files, if provided, are shredded immediately after being hashed.</li>
-<li><strong>Rationale</strong>: Prevents password recovery from temporary files.</li>
-</ul>
-<h2 id="35-variable-declaration--validation">3.5. Variable Declaration &amp; Validation</h2>
-<ul>
-<li><strong>Description</strong>: All variables are declared and validated before use.</li>
-<li><strong>Rationale</strong>: Avoids unintended behavior from unset or improperly set variables.</li>
-</ul>
-<h2 id="36-pure-bash-implementation">3.6. Pure Bash Implementation</h2>
-<ul>
-<li><strong>Description</strong>: The entire wrapper and all its functions are written in pure Bash, without external dependencies.</li>
-<li><strong>Rationale</strong>: Ensures maximum portability and compatibility with standard Debian environments.</li>
-</ul>
-<h2 id="37-bash-error-handling">3.7. Bash Error Handling</h2>
-<ul>
-<li><p><strong>Description</strong>: The implemented xtrace wrapper <code>set -x</code> enforces comprehensive Bash error handling to ensure</p>
-<ul>
-<li>robust,</li>
-<li>predictable execution,</li>
-<li>and early detection of failures.</li>
-</ul>
-<p>and delivers full information, which command failed to execute:</p>
-<ul>
-<li>Script Name and Path of called Function,</li>
-<li>Line Number,</li>
-<li>Function Name,</li>
-<li>Exit Code of the previous Command,</li>
-<li>Executed Command,</li>
-<li>Environment Settings,</li>
-<li>Argument Counter passed to Script,</li>
-<li>Argument String passed to Script.</li>
-</ul></li>
-<li><p>The following <code>set</code> options are applied at the beginning of the script (see <a href="https://www.gnu.org/software/bash/manual/bash.html#The-Set-BuiltinGNU">Bash Manual, The Set Builtin</a>):</p></li>
-</ul>
-<pre class="bash"><code>set -o errexit   # Exit script when a command exits with non-zero status (same as &quot;set -e&quot;).
-set -o errtrace  # Inherit ERR traps in subshells (same as &quot;set -E&quot;).
-set -o functrace # Inherit DEBUG and RETURN traps in subshells (same as &quot;set -T&quot;).
-set -o nounset   # Exit script on use of an undefined variable (same as &quot;set -u&quot;).
-set -o pipefail  # Return the exit status of the last failed command in a pipeline.
-set -o noclobber # Prevent overwriting files via redirection (same as &quot;set -C&quot;).</code></pre>
-<ul>
-<li><strong>Rationale</strong>: These options enforce strict error checking and handling, reducing silent failures and ensuring predictable script behavior.</li>
-</ul>
-<h1 id="4-prerequisites">4. Prerequisites</h1>
-<ul>
-<li><strong>Host</strong>: Debian Bookworm or newer with <code>live-build</code> package installed.</li>
-<li><strong>Privileges</strong>: Root or sudo access to execute <code>ciss_live_builder.sh</code> and related scripts.</li>
-<li><strong>Network</strong>: Outbound access to Debian repositories and PTB NTPsec pool.</li>
-</ul>
-<h1 id="5-installation--usage">5. Installation &amp; Usage</h1>
-<h1 id="51-interactive-cli--dialog-wrapper">5.1. Interactive CLI / Dialog Wrapper</h1>
-<ol type="1">
-<li><p>Clone the repository:</p>
-<pre class="bash"><code>git clone https://git.coresecret.dev/msw/CISS.debian.live.builder.git
-cd CISS.debian.live.builder</code></pre></li>
-<li><p>Preparation:</p>
-<ol type="1">
-<li>Ensure you are root.</li>
-<li>Create the build directory <code>mkdir /opt/livebuild</code>.</li>
-<li>Place your desired SSH public key in the <code>authorized_keys</code> file, for example, in the <code>/opt/gitea/CISS.debian.live.builder</code> directory.</li>
-<li>Place your desired Password in the <code>password.txt</code> file, for example, in the <code>/opt/gitea/CISS.debian.live.builder</code> directory.</li>
-<li>Make any other changes you need to.</li>
-</ol></li>
-<li><p>Run the config builder script <code>./ciss_live_builder.sh</code> and the integrated <code>lb build</code> command (example):</p>
-<pre class="yaml"><code>chmod 0700 ./ciss_live_builder.sh
-./ciss_live_builder.sh --architecture amd64 \
-                       --build-directory /opt/livebuild \
-                       --change-splash hexagon \
-                       --control 384 \
-                       --debug \
-                       --dhcp-centurion \
-                       --jump-host 10.0.0.128 [c0de:4711:0815:4242::1] [2abc:4711:0815:4242::1]/64 \
-                       --provider-netcup-ipv6 [c0de:4711:0815:4242::ffff] \
-                       --renice-priority &quot;-19&quot; \
-                       --reionice-priority 1 2 \
-                       --root-password-file /opt/gitea/CISS.debian.live.builder/password.txt \
-                       --ssh-port 4242 \
-                       --ssh-pubkey /opt/gitea/CISS.debian.live.builder</code></pre></li>
-<li><p>Locate your ISO in the <code>--build-directory</code>.</p></li>
-<li><p>Boot from the ISO and login to the live image via the console, or the multi-layer secured <strong>coresecret</strong> SSH tunnel.</p></li>
-<li><p>Type <code>sysp</code> for the final kernel hardening features.</p></li>
-<li><p>Check the boot log with <code>jboot</code> and via <code>ssf</code> that all services are up.</p></li>
-<li><p>Finally, audit your environment with <code>lsadt</code> for a comprehensive Lynis audit.</p></li>
-<li><p>Type <code>celp</code> for some shortcuts.</p></li>
-</ol>
-<h1 id="52-cicd-gitea-runner-workflow-example">5.2. CI/CD Gitea Runner Workflow Example</h1>
-<ol type="1">
-<li><p>Clone the repository:</p>
-<pre class="bash"><code>git clone https://git.coresecret.dev/msw/CISS.debian.live.builder.git
-cd CISS.debian.live.builder</code></pre></li>
-<li><p>Edit the <code>.gitea/workflows/generate-iso.yaml</code> file according to your requirements. Ensure that the trigger file <code>.gitea/trigger/t_generate.iso.yaml</code> and the counter are updated. Change all the necessary <code>{{ secrets.VAR }}</code>. Push your commits to trigger the workflow. Then download your final ISO from the specified Location.</p></li>
-</ol>
-<pre class="yaml"><code>#...
-    steps:
-      - name: Preparing SSH Setup, SSH Deploy Key, Known Hosts, .config.
-        run: |
-          rm -rf ~/.ssh &amp;&amp; mkdir -m700 ~/.ssh
-
-          ### Private Key
-          echo &quot;${{ secrets.CHANGE_ME }}&quot; &gt;| ~/.ssh/id_ed25519
-          chmod 600 ~/.ssh/id_ed25519
-#...
-      ### https://github.com/actions/checkout/issues/1843
-      - name: Using manual clone via SSH to circumvent Gitea SHA-256 object issues.
-        run: |
-          git clone --branch &quot;${GITHUB_REF_NAME}&quot; ssh://git@CHANGE_ME .
-#...
-      - name: Importing the &#39;CI PGP DEPLOY ONLY&#39; key.
-        run: |
-          ### GPG-Home relative to the Runner Workspace to avoid changing global files.
-          export GNUPGHOME=&quot;$(pwd)/.gnupg&quot;
-          mkdir -m700 &quot;${GNUPGHOME}&quot;
-          echo &quot;${{ secrets.CHANGE_ME }}&quot; &gt;| ci-bot.sec.asc
-#...
-      - name: Configuring Git for signed CI/DEPLOY commits.
-        run: |
-          export GNUPGHOME=&quot;$(pwd)/.gnupg&quot;
-          git config user.name &quot;CHANGE_ME&quot;
-          git config user.email &quot;CHANGE_ME&quot;
-#...
-      - name: Preparing the build environment.
-        run: |
-          mkdir -p /opt/config
-          mkdir -p /opt/livebuild
-          echo &quot;${{ secrets.CHANGE_ME }}&quot; &gt;| /opt/config/password.txt
-          echo &quot;${{ secrets.CHANGE_ME }}&quot; &gt;| /opt/config/authorized_keys
-#...
-      - name: Starting CISS.debian.live.builder. This may take a while ...
-        run: |
-          chmod 0700 ciss_live_builder.sh &amp;&amp; chown root:root ciss_live_builder.sh
-          timestamp=$(date -u +&quot;%Y_%m_%d_%H_%M_Z&quot;)
-          ### Change &quot;--autobuild=&quot; to the specific kernel version you need: &#39;6.12.22+bpo-amd64&#39;.
-          ./ciss_live_builder.sh \
-            --autobuild=CHANGE_ME \
-            --architecture CHANGE_ME \
-            --build-directory /opt/livebuild \
-            --control &quot;${timestamp}&quot; \
-            --jump-host &quot;${{ secrets.CHANGE_ME }}&quot; \
-            --root-password-file /opt/config/password.txt \
-            --ssh-port CHANGE_ME \
-            --ssh-pubkey /opt/config
-#...
-      ### SKIP OR CHANGE ALL REMAINING STEPS</code></pre>
-<h1 id="6-licensing--compliance">6. Licensing &amp; Compliance</h1>
-<p>This repository is fully SPDX-compliant. All source files include appropriate SPDX license identifiers and headers to ensure clear and unambiguous licensing. You can verify compliance by reviewing the top of each file, which follows the SPDX standard for license expressions and metadata.</p>
-<h1 id="7-disclaimer">7. Disclaimer</h1>
-<p>This README is provided "as-is" without any warranty. Review your organization's policies before deploying to production.</p>
-<hr />
-<p><strong><a href="https://coresecret.eu/">no tracking | no logging | no advertising | no profiling | no bullshit</a></strong></p>
-

README.md

@@ -2,17 +2,17 @@
 gitea: none
 include_toc: true
 ---
-[![Static Badge](https://badges.coresecret.dev/badge/Release-V8.03.127.2025.06.02-white?style=plastic&logo=linux&logoColor=white&logoSize=auto&label=Release&color=%23FCC624)](https://git.coresecret.dev/msw/CISS.debian.live.builder)
+[![Static Badge](https://badges.coresecret.dev/badge/Release-V8.13.142.2025.10.14-white?style=plastic&logo=linux&logoColor=white&logoSize=auto&label=Release&color=%23FCC624)](https://git.coresecret.dev/msw/CISS.debian.live.builder)
  
 [![Static Badge](https://badges.coresecret.dev/badge/Licence-EUPL1.2-white?style=plastic&logo=europeanunion&logoColor=white&logoSize=auto&label=Licence&color=%23003399)](https://eupl.eu/1.2/en/)  
 [![Static Badge](https://badges.coresecret.dev/badge/opensourceinitiative-Compliant-white?style=plastic&logo=opensourceinitiative&logoColor=white&logoSize=auto&label=OSI&color=%233DA639)](https://opensource.org/license/eupl-1-2)  
-[![Static Badge](https://badges.coresecret.dev/badge/Bash-V5.2.15-white?style=plastic&logo=gnubash&logoColor=white&logoSize=auto&label=Bash&color=%234EAA25)](https://www.gnu.org/software/bash/)  
+[![Static Badge](https://badges.coresecret.dev/badge/Bash-V5.2.37-white?style=plastic&logo=gnubash&logoColor=white&logoSize=auto&label=Bash&color=%234EAA25)](https://www.gnu.org/software/bash/)  
 [![Static Badge](https://badges.coresecret.dev/badge/shellcheck-passed-white?style=plastic&logo=gnubash&logoColor=white&logoSize=auto&label=shellcheck&color=%234EAA25)](https://shellcheck.net/)  
 [![Static Badge](https://badges.coresecret.dev/badge/shellformat-passed-white?style=plastic&logo=google&logoColor=white&logoSize=auto&label=shellformat&color=%234285F4)](https://github.com/mvdan/sh)  
 [![Static Badge](https://badges.coresecret.dev/badge/Shellstyle-Google-white?style=plastic&logo=google&logoColor=white&logoSize=auto&label=Shellstyle&color=%234285F4)](https://google.github.io/styleguide/shellguide.html)
  
-[![Static Badge](https://badges.coresecret.dev/badge/Gitea-1.23.8-white?style=plastic&logo=gitea&logoColor=white&logoSize=auto&label=gitea&color=%23609926)](https://docs.gitea.com/)  
-[![Static Badge](https://badges.coresecret.dev/badge/IntelliJ-2025.1.1.1-white?style=plastic&logo=intellijidea&logoColor=white&logoSize=auto&label=IntelliJ&color=%23000000)](https://www.jetbrains.com/store/?section=personal&billing=yearly)  
+[![Static Badge](https://badges.coresecret.dev/badge/Gitea-1.24.6-white?style=plastic&logo=gitea&logoColor=white&logoSize=auto&label=gitea&color=%23609926)](https://docs.gitea.com/)  
+[![Static Badge](https://badges.coresecret.dev/badge/IntelliJ-2025.2.3-white?style=plastic&logo=intellijidea&logoColor=white&logoSize=auto&label=IntelliJ&color=%23000000)](https://www.jetbrains.com/store/?section=personal&billing=yearly)  
 [![Static Badge](https://badges.coresecret.dev/badge/keepassxc-2.7.10-white?style=plastic&logo=keepassxc&logoColor=white&logoSize=auto&label=KeePassXC&color=%236CAC4D)](https://keepassxc.org/)  
 [![Static Badge](https://badges.coresecret.dev/badge/netcup-Netcup-white?style=plastic&logo=netcup&logoColor=white&logoSize=auto&label=powered&color=%23056473)](https://www.netcup.com/de)  
 [![Static Badge](https://badges.coresecret.dev/badge/powered-Centurion-white?style=plastic&logo=europeanunion&logoColor=white&logoSize=auto&label=powered&color=%230F243E)](https://coresecret.eu/)  
@@ -25,16 +25,19 @@ include_toc: true
 
 **Centurion Intelligence Consulting Agency Information Security Standard**<br>
 *Debian Live Build Generator for hardened live environment and CISS Debian Installer*<br>
-**Master Version**: 8.02<br>
-**Build**: V8.03.145.2025.06.02<br>
+**Master Version**: 8.13<br>
+**Build**: V8.13.142.2025.10.14<br>
 
 This shell wrapper automates the creation of a Debian Bookworm live ISO hardened according to the latest best practices in server
 and service security. It integrates into your build pipeline to deliver an isolated, robust environment suitable for
-cloud deployment or unattended installations via the forthcoming `CISS.debian.installer`.
+cloud deployment or unattended installations via the forthcoming `CISS.debian.installer`. Additionally, automated CI workflows 
+based on Gitea Actions are provided, enabling reproducible ISO generation. A generic ISO is automatically built upon significant
+changes and made publicly available for download. The latest generic ISO is available at:
+**[PUBLIC CISS.debian.live.ISO](/docs/DL_PUB_ISO.md)**
 
 Check out more:
 * [CenturionNet Services](https://coresecret.eu/cnet/) 
-* [CenturionDNS Resolver](https://dns.eddns.eu/)
+* [CenturionDNS Resolver](https://eddns.eu/)
 * [CenturionDNS Blocklist](https://dns.eddns.eu/blocklists/centurion_titanium_ultimate.txt) 
 * [CenturionNet Status](https://uptime.coresecret.eu/) 
 * [CenturionMeet](https://talk.e2ee.li/) 
@@ -46,16 +49,37 @@ Check out more:
 Please note that all my signing keys are stored in an HSM and that the signing environment is air-gapped. The next step is to 
 move to a room-gapped environment. ^^
 
-### 1.1.2. HSTS and DNSSEC
+### 1.1.2. DNSSEC, HSTS, TLS
 
 Please note that `coresecret.dev` is included in the [(HSTS Preload List)](https://hstspreload.org/) and always serves the headers:
 ````nginx configuration pro
 add_header Expect-CT                 "max-age=86400, enforce"                       always;
 add_header Strict-Transport-Security "max-age=63072000; includeSubDomains; preload" always;
 ````
-Additionally, the entire zone is dual-signed with DNSSEC. See the current DNSSEC status at [DNSSEC Audit Report](https://git.coresecret.dev/msw/CISS.debian.live.builder/src/branch/master/docs/AUDIT_DNSSEC.md)
 
-## 1.2. Immutable Source-of-Truth System
+* Additionally, the entire zone is dual-signed with **DNSSEC**. See the current **DNSSEC** status at: **[DNSSEC Audit Report](/docs/AUDIT_DNSSEC.md)**
+* A comprehensive TLS audit of the **`git.coresecret.dev`** Gitea server is also available. See: **[TLS Audit Report](/docs/AUDIT_TLS.md)**
+* The infrastructure of the **`CISS.debian.live.builder`** building system is visualized here. See: **[Centurion Net](/docs/CNET.md)**
+
+### 1.1.3. Gitea Action Runner Hardening
+
+The CI runners operate on a dedicated host system located in a completely separate Autonomous System (AS). This host is solely 
+dedicated to providing CI runners and does not perform any other tasks. Each runner is hermetically isolated from others using 
+non-privileged, shell-less user accounts with no direct login capability. Additionally, each runner executes within its own 
+separate directory tree, employs `DynamicUser` features, and adheres to strict systemd hardening policies (achieving a ``systemd-analyze security`` 
+rating of **``2.6``**). Docker containers used by runners do not run in privileged mode. Security is further enhanced through the use 
+of both UFW software firewalls and dedicated hardware firewall appliances.
+
+## 1.2. Match Host and Target Versions
+
+Build, for example, a Debian Trixie live image only on a Debian Trixie host. The build toolchain and boot artifacts are 
+release-specific: ``live-build``, ``live-boot``, ``live-config``, ``debootstrap``, ``kernel/initramfs`` tools, ``mksquashfs``, 
+``GRUB/ISOLINUX``, and even ``dpkg/apt`` often change defaults and formats between releases (e.g., compression modes, SquashFS 
+options, hook ordering, systemd/udev behavior). Building on a different host release commonly yields non-reproducible or even 
+unbootable ISOs (missing modules/firmware, ABI mismatches, divergent paths). Keeping host and target on the same version ensures
+reproducible builds, matching dependencies, and compatible boot artifacts.
+
+## 1.3. Immutable Source-of-Truth System
 
 This live ISO establishes a secure, fully deterministic, integrity self-verifying boot environment based entirely on static
 source-code definitions. All configurations, system components, and installation routines are embedded during build time and 
@@ -74,25 +98,25 @@ or shell-access, also via the forthcoming `CISS.debian.installer`. Such a versio
 provisions the target device from embedded source artifacts, and reboots into a fully encrypted system image. The system then 
 awaits the decryption passphrase input via an embedded Dropbear SSH server (SSH PubKey only) in the initramfs, exposing no ports
 without cryptographic hardened access, while also the `/boot` partition could be encrypted via the built-in support of 
-`grub2 (2.12-1~bpo12+1)`.<br>
+`grub2 (2.12-9)`.<br>
 
 This approach provides a fully reproducible, audit-friendly, and tamper-resistant provisioning workflow rooted entirely in 
 source-defined infrastructure logic.<br>
 
 After build and configuration, the following audit reports can be generated:
 
-* **Haveged Audit Report**: Validates entropy daemon health and confirms '/dev/random' seeding performance.
-  Type `chkhvg` at the prompt. See example report: [Haveged Audit Report](https://git.coresecret.dev/msw/CISS.debian.live.builder/src/branch/master/docs/AUDIT_HAVEGED.md)
+* **Haveged Audit Report**: Validates entropy daemon health and confirms `/dev/random` seeding performance.
+  Type `chkhvg` at the prompt. See example report: **[Haveged Audit Report](/docs/AUDIT_HAVEGED.md)**
 * **Lynis Audit Report**: Outputs a detailed security score and recommendations, confirming a 91%+ hardening baseline.
-  Type `lsadt` at the prompt. See example report: [Lynis Audit Report](https://git.coresecret.dev/msw/CISS.debian.live.builder/src/branch/master/docs/AUDIT_LYNIS.md)
+  Type `lsadt` at the prompt. See example report: **[Lynis Audit Report](/docs/AUDIT_LYNIS.md)**
 * **SSH Audit Report**: Verifies SSH daemon configuration against the latest best-practice cipher, KEX, and MAC recommendations.
-  Type `ssh-audit <IP>:<PORT>`. See example report: [SSH Audit Report](https://git.coresecret.dev/msw/CISS.debian.live.builder/src/branch/master/docs/AUDIT_SSH.md)
+  Type `ssh-audit <IP>:<PORT>`. See example report: **[SSH Audit Report](/docs/AUDIT_SSH.md)**
 
-## 1.2. Preview
+## 1.4. Preview
 
 ![CISS.debian.live.builder](/docs/screenshots/CISS.debian.live.builder_preview.jpeg)
 
-## 1.3. Caution. Significant information for those considering using D-I.
+## 1.5. Caution. Significant information for those considering using D-I.
 
 **The Debian Installer (d-i) will ALWAYS boot a new system.**<br>
 
@@ -106,7 +130,7 @@ The following happens in all cases:
 * The installer kernel (/install/vmlinuz) + initrd.gz are started.
 * The existing live system is exited.
 * The memory is overwritten.
-* All running processes – e.g., firewall, hardened SSH access, etc. pp. – cease to exist.
+* All running processes - e.g., firewall, hardened SSH access, etc. pp. - cease to exist.
 
 The Debian Installer loads:
 * its own kernel,
@@ -123,6 +147,24 @@ This means function status of the **CISS.2025.debian.live.builder** ISO after d-
 * Logging (rsyslog, journald) ✘ not active,
 * preseed control over the network is possible (but without any protection).
 
+## 1.6. Versioning Schema
+
+This project adheres strictly to a structured versioning scheme following the pattern x.y.z-Date.
+
+Example: `V8.13.142.2025.10.14`
+
+`x.y.z` represents major (x), minor (y), and patch (z) version increments.
+
+Date (YYYY.MM.DD) denotes the build or release date, facilitating clear tracking of incremental changes and ensuring 
+reproducibility and traceability.
+
+## 1.7. Keywords
+
+The keywords "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED",
+"MAY", and "OPTIONAL" in this Repo are to be interpreted as described in [[BCP 14](https://www.rfc-editor.org/info/bcp14)], 
+[[RFC2119](https://datatracker.ietf.org/doc/html/rfc2119)], [[RFC8174](https://datatracker.ietf.org/doc/html/rfc8174)] when,
+and only when, they appear in all capitals, as shown here.
+
 # 2. Features & Rationale
 
 Below is a breakdown of each hardening component, with a summary of why each is critical to your security posture.
@@ -356,43 +398,62 @@ apply or revert these controls.
 set -o errexit   # Exit script when a command exits with non-zero status (same as "set -e").
 set -o errtrace  # Inherit ERR traps in subshells (same as "set -E").
 set -o functrace # Inherit DEBUG and RETURN traps in subshells (same as "set -T").
+set -o ignoreeof # An interactive shell will not exit upon reading EOF.
 set -o nounset   # Exit script on use of an undefined variable (same as "set -u").
 set -o pipefail  # Return the exit status of the last failed command in a pipeline.
 set -o noclobber # Prevent overwriting files via redirection (same as "set -C").
 ```
+
+* The following `shopt` options are applied at the beginning of the script (see
+  [Bash Manual, The Shopt Builtin](https://www.gnu.org/software/bash/manual/bash.html#The-Shopt-Builtin)):
+````bash
+shopt -s failglob        # If set, patterns that fail to match filenames during filename expansion result in an expansion error.
+shopt -s inherit_errexit # If set, command substitution inherits the value of the errexit option instead of unsetting it in the
+                         # subshell environment.
+shopt -s lastpipe        # If set, and job control is not active, the shell runs the last command of a pipeline not executed in
+                         # the background in the current shell environment.
+shopt -u expand_aliases  # If set, aliases are expanded as described. This option is enabled by default for interactive shells.
+shopt -u dotglob         # If set, Bash includes filenames beginning with a '.' in the results of filename expansion.
+shopt -u extglob         # If set, enable the extended pattern matching features.
+shopt -u nullglob        # If set, filename expansion patterns that match no files expand to nothing and are removed.
+````
+
 * **Rationale**: These options enforce strict error checking and handling, reducing silent failures and ensuring 
 predictable script behavior.
 
 # 4. Prerequisites
 
-* **Host**: Debian Bookworm or newer with `live-build` package installed.
+* **Host**: Debian Trixie with `live-build` and ``debootstrap`` packages installed.
 * **Privileges**: Root or sudo access to execute `ciss_live_builder.sh` and related scripts.
 * **Network**: Outbound access to Debian repositories and PTB NTPsec pool.
 
 # 5. Installation & Usage
 
-# 5.1. Interactive CLI / Dialog Wrapper
+## 5.1. Interactive CLI / Dialog Wrapper
 
 1. Clone the repository:
-
    ```bash
    git clone https://git.coresecret.dev/msw/CISS.debian.live.builder.git
    cd CISS.debian.live.builder
    ```
+   
 2. Preparation:
    1. Ensure you are root.
    2. Create the build directory `mkdir /opt/livebuild`.
    3. Place your desired SSH public key in the `authorized_keys` file, for example, in the `/opt/gitea/CISS.debian.live.builder` directory.
    4. Place your desired Password in the `password.txt` file, for example, in the `/opt/gitea/CISS.debian.live.builder` directory.
    5. Make any other changes you need to.
+
 3. Run the config builder script `./ciss_live_builder.sh` and the integrated `lb build` command (example):
 
-   ```yaml
+   ````bash
    chmod 0700 ./ciss_live_builder.sh
+   timestamp=$(date -u +%Y-%m-%dT%H:%M:%S%z)
    ./ciss_live_builder.sh --architecture amd64 \
                           --build-directory /opt/livebuild \
                           --change-splash hexagon \
-                          --control 384 \
+                          --control "${timestamp}" \
+                          --cdi \
                           --debug \
                           --dhcp-centurion \
                           --jump-host 10.0.0.128 [c0de:4711:0815:4242::1] [2abc:4711:0815:4242::1]/64 \
@@ -401,8 +462,10 @@ predictable script behavior.
                           --reionice-priority 1 2 \
                           --root-password-file /opt/gitea/CISS.debian.live.builder/password.txt \
                           --ssh-port 4242 \
-                          --ssh-pubkey /opt/gitea/CISS.debian.live.builder
-   ```
+                          --ssh-pubkey /opt/gitea/CISS.debian.live.builder \
+                          --trixie
+   ````
+
 4. Locate your ISO in the `--build-directory`.
 5. Boot from the ISO and login to the live image via the console, or the multi-layer secured **coresecret** SSH tunnel.
 6. Type `sysp` for the final kernel hardening features.
@@ -410,7 +473,46 @@ predictable script behavior.
 8. Finally, audit your environment with `lsadt` for a comprehensive Lynis audit.
 9. Type `celp` for some shortcuts.
 
-# 5.2. CI/CD Gitea Runner Workflow Example
+## 5.2. Make Wrapper, Quick Usage
+
+This repo ships a thin make wrapper around ``./ciss_live_builder.sh``, so you can compose a correctly quoted command and either 
+preview it or run it.
+
+1. Clone the repository:
+
+   ```bash
+   git clone https://git.coresecret.dev/msw/CISS.debian.live.builder.git
+   cd CISS.debian.live.builder
+   ```
+
+2. Preparation:
+   1. Ensure you are root.
+   2. Create the build directory `mkdir /opt/livebuild`.
+   3. Place your desired SSH public key in the `authorized_keys` file, for example, in the `/opt/gitea/CISS.debian.live.builder` directory.
+   4. Place your desired Password in the `password.txt` file, for example, in the `/opt/gitea/CISS.debian.live.builder` directory.
+   5. Copy and edit the sample and set your options (no spaces around commas in lists): 
+
+    ````bash
+    cp config.mk.sample config.mk
+    ````
+
+    ````bash
+    BUILD_DIR=/opt/livebuild
+    ROOT_PASSWORD_FILE=/opt/gitea/CISS.debian.live.builder/password.txt
+    SSH_PORT=4242
+    SSH_PUBKEY=/root/.ssh
+
+    # Optional
+    PROVIDER_NETCUP_IPV6=2001:cdb::1
+    # comma-separated; IPv6 in [] is fine
+    JUMP_HOSTS=[2001:db8::1],[2001:db8::2]     
+    ````
+
+3. Dry-run first (prints the exact command): ````make dry-run````
+
+4. Execute the build: ````make live````
+
+## 5.3. CI/CD Gitea Runner Workflow Example
 
 1. Clone the repository:
 

REPOSITORY.md

@@ -0,0 +1,119 @@
+---
+gitea: none
+include_toc: true
+---
+
+# 1. CISS.debian.live.builder
+
+**Centurion Intelligence Consulting Agency Information Security Standard**<br>
+*Debian Live Build Generator for hardened live environment and CISS Debian Installer*<br>
+**Master Version**: 8.13<br>
+**Build**: V8.13.142.2025.10.14<br>
+
+# 2.1. Repository Structure
+
+**Project:** Centurion Intelligence Consulting Agency Information Security Standard (CISS) — Debian Live Builder  
+**Branch:** `master`  
+**Repository State:** Master Version **8.13**, Build **V8.13.142.2025.10.14** (as of 2025-10-11)
+
+## 2.2. Top-Level Layout
+
+````text
+CISS.debian.live.builder/
+├─ .archive/                                                                           # Archived artefacts or historical assets
+├─ .gitea/ # Gitea CI/CD metadata (workflows, triggers, templates)
+│ ├─ ISSUE_TEMPLATE/
+│ ├─ properties/{json, lua}
+│ ├─ TO DO/{dockerfile, render-md-to-html.yaml}
+│ ├─ trigger/{t_generate_.yaml}
+│ └─ workflows/{generate_.yaml, linter_char_scripts.yaml, render-.yaml}
+├─ .pubkey/                                                                         # Public keys (e.g., for CI or verification)
+├─ config/ # Live-build configuration (boot, hooks, includes, package lists)
+│ ├─ bootloaders/{grub-efi, grub-pc, splash.png}
+│ ├─ hooks/live/.chroot                                                                  # Ordered chroot hooks (0000_* … 99xx_)
+│ ├─ includes.binary/boot/grub/config.cfg
+│ ├─ includes.chroot/{etc, preseed, root}
+│ └─ package-lists/{live.list.amd64.chroot, live.list.arm64.chroot, live.list.common.chroot}
+├─ docs/                                                                  # Project documentation (audits, change log, policies)
+│ ├─ AUDIT_.md, BOOTPARAMS.md, CHANGELOG.md, CODING_CONVENTION.md, ...
+│ ├─ SECURITY/, LICENSES/, graphviz/, screenshots/
+├─ lib/                                                                              # Shell library modules used by the builder
+├─ scripts/ # Helper/orchestration scripts (e.g., network, live-boot)
+├─ var/                                                                     # Variable sets and early/global defaults (*.var.sh)
+├─ .editorconfig
+├─ .gitignore
+├─ .shellcheckrc
+├─ .version.properties
+├─ CISS.debian.live.builder.spdx                                                     # SPDX bill of materials / license manifest
+├─ LICENSE
+├─ SECURITY.md
+├─ README.md
+├─ config.mk.sample
+├─ ciss_live_builder.sh                                                                              # Main entrypoint / wrapper
+├─ makefile
+├─ meta_sources_debug.sh
+├─ LIVE_ISO_TRIXIE_0.private                                                                               # CI artefact markers
+├─ LIVE_ISO_TRIXIE_1.private                                                                               # CI artefact markers
+└─ LIVE_ISO.public                                                                                         # CI artefact markers
+````
+
+> **Note:** The ISO marker files (`LIVE_ISO.*`) are produced by CI workflows for convenient retrieval of generated images.
+
+## 2.3. Directory Semantics
+
+### 2.3.1. `.gitea/` — CI/CD Orchestration
+- **`workflows/`**: Declarative Gitea Actions to lint shell scripts, render Graphviz/DNSSEC status, and generate **PUBLIC**/**PRIVATE (TRIXIE)** ISOs reproducibly.
+- **`trigger/`**: Manual/auxiliary trigger manifests (`t_generate_PUBLIC.yaml`, `t_generate_PRIVATE_trixie_{0,1}.yaml`, `t_generate_dns.yaml`) to drive pipeline variants.
+- **`ISSUE_TEMPLATE/`**: Issue and pull request templates to standardize change management.
+- **`properties/`** and **`TODO/`**: Auxiliary config fragments (JSON/Lua) and maintenance utilities (e.g., `render-md-to-html.yaml`).
+
+### 2.3.2. `config/` — Live-Build Configuration
+- **`bootloaders/`**: Boot assets for GRUB in EFI and PC modes, incl. a branded splash image.
+- **`hooks/live/`**: **Ordered** `*.chroot` hooks implementing system configuration and hardening during image creation; the numeric prefixes dictate execution (e.g., `0000_basic_chroot_setup.chroot`, `0810_chrony_setup.chroot`, `0900_ufw_setup.chroot`, `9930_hardening_ssh.chroot`, `9950_fail2ban_hardening.chroot`).
+- **`includes.binary/boot/grub/`**: Static GRUB configuration embedded in the binary image (`config.cfg`).
+- **`includes.chroot/`**: Files copied into the live system’s root:
+  - `etc/` (APT configuration, `live/`, `modprobe.d/`, network, SSH, `sysctl.d/`, systemd drop-ins, banners),
+  - `preseed/` (installer preseeding and supporting artifacts),
+  - `root/` (administrator dotfiles and keys).
+- **`package-lists/`**: Architecture-specific and common package manifests (`amd64`, `arm64`, `common`) used by `live-build`.
+
+### 2.3.3. `docs/` — Documentation Corpus
+Audit reports (DNSSEC, Lynis, SSH, TLS, Haveged), **BOOTPARAMS**, **CHANGELOG**, **CODING_CONVENTION**, **CONTRIBUTING**, **REFERENCES**; plus `SECURITY/`, `LICENSES/`, architecture diagrams under `graphviz/`, and illustrative `screenshots/`.
+
+### 2.3.4. `lib/` — Shell Library Modules
+Composable, single-purpose modules used by the wrapper and CI steps (argument parsing and validation, kernel/CPU mitigation checks, provider support, `lb config/build` scaffolding, usage/version banners, sanitization and traps, SSH/root-password hardening, ultra-hardening profile, etc.).
+
+### 2.3.5. `scripts/` — Operational Helpers
+Ancillary scripts for DHCP supersedes, resolver bootstrapping, and live-boot verification; targeted paths such as `scripts/etc/network/` and `scripts/live-boot/` encapsulate deploy-time adjustments and integrity checks.
+
+### 2.3.6. `var/` — Variables & Defaults
+Layered variable sets (`early.var.sh`, `global.var.sh`, `bash.var.sh`, `color.var.sh`) providing early-boot defaults, global tuning, and TTY/UI niceties.
+
+## 2.4. Key Files
+
+- **`ciss_live_builder.sh`** — Primary entrypoint; orchestrates argument parsing, environment preparation, `lb config`/`lb build` execution and post-processing.
+- **`makefile`** & **`config.mk.sample`** — Make-based convenience wrapper and a sample configuration surface.
+- **`README.md`, `SECURITY.md`, `LICENSE`, `CISS.debian.live.builder.spdx`** — Project overview, security policy, licensing, and SPDX manifest for compliance.
+- **ISO markers**: `LIVE_ISO.public`, `LIVE_ISO_TRIXIE_{0,1}.private` reflect CI pipeline outputs.
+
+## 2.5. Conventions & Build Logic
+
+- **Hook Ordering**: Numeric prefixes (`0000_…` → `99xx_…`) strictly determine execution sequencing within `config/hooks/live/`. Early hooks establish base state (initramfs modules, checksums), mid-range hooks integrate security services (AppArmor, Chrony/NTPsec, Lynis, UFW, Fail2Ban, SSH auditing), late hooks enforce hardening and cleanup (SSH tightening, memory-dump policies, service disablement).
+- **Binary vs. Chroot Includes**: Assets under `includes.binary/` affect the ISO’s bootloader stage; `includes.chroot/` become part of the runtime filesystem.
+- **Architecture Scoping**: Package lists are split into `*amd64*`, `*arm64*`, and `*common*` to keep images minimal and deterministic.
+- **CI/CD**: Reproducible ISO builds are executed via Gitea workflows; dedicated `trigger/` manifests parameterize public vs. private images and auxiliary rendering jobs (e.g., DNSSEC status, Graphviz diagrams).
+
+## 2.6. Cross-References (Documentation)
+
+- **Boot Parameters**: see `docs/BOOTPARAMS.md`.
+- **Audits**: `docs/AUDIT_*.md` (DNSSEC, Lynis, SSH, TLS, Haveged).
+- **Coding & Contribution**: `docs/CODING_CONVENTION.md`, `docs/CONTRIBUTING.md`.
+- **Change Log & References**: `docs/CHANGELOG.md`, `docs/REFERENCES.md`.
+
+## 2.7. Licensing & Compliance
+
+The repository is **SPDX-compliant**; source files carry SPDX identifiers. See `CISS.debian.live.builder.spdx` and `LICENSE` for details.
+
+---
+**[no tracking | no logging | no advertising | no profiling | no bullshit](https://coresecret.eu/)**
+<!-- vim: set number et ts=2 sw=2 sts=2 ai tw=128 ft=markdown -->

ciss_live_builder.sh

@@ -3,7 +3,7 @@
 # SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
@@ -13,93 +13,22 @@
 ### Contributions so far see ./docs/CREDITS.md
 
 ### WHY BASH?
-# Ease of installation.
-# No compiling or installing gems, CPAN modules, pip packages, etc.
-# Simple to use and read. Clear syntax and straightforward output interpretation.
-# Built-in power.
-# Pattern matching, line processing, and regular expression support are available natively,
-# no external binaries required.
-# Cross-platform consistency.
-# '/bin/bash' is the default shell on most Linux distributions, ensuring scripts run unmodified across systems.
-# macOS compatibility.
-# Since macOS Catalina (10.15), the default login shell has been zsh, but bash remains available at '/bin/bash'.
-# Windows support.
-# You can use bash via WSL, MSYS2, or Cygwin on Windows systems.
+# Ease of installation. No compiling or installing gems, CPAN modules, pip packages, etc. Simple to use and read. Clear syntax
+# and straightforward output interpretation. Built-in power. Pattern matching, line processing, and regular expression support
+# are available natively, no external binaries required. Cross-platform consistency. '/bin/bash' is the default shell on most
+# Linux distributions, ensuring scripts run unmodified across systems. macOS compatibility. Since macOS Catalina (10.15), the
+# default login shell has been zsh, but bash remains available at '/bin/bash'. Windows support. You can use bash via WSL, MSYS2,
+# or Cygwin on Windows systems.
 
-### Preliminary checks
-[ -z "${BASH_VERSINFO[0]}" ] && {
-  . ./var/global.var.sh; printf "\e[91m❌ Please make sure you are using 'bash'! Bye... \e[0m\n" >&2; exit "${ERR_UNSPPTBASH}"; }
-[[ ${EUID} -ne 0 ]] && {
-  . ./var/global.var.sh; printf "\e[91m❌ Please make sure you are 'root'! Bye... \e[0m\n" >&2; exit "${ERR_NOT_USER_0}"; }
-[[ $(kill -l | grep -c SIG) -eq 0 ]] && {
-  . ./var/global.var.sh; printf "\e[91m❌ Please make sure you are calling the script without leading 'sh'! Bye... \e[0m\n" >&2; exit "${ERR_UNSPPTBASH}"; }
-[[ ${BASH_VERSINFO[0]} -lt 5 ]] && {
-  . ./var/global.var.sh; printf "\e[91m❌ Minimum requirement is bash 5.1. You are using '%s'! Bye... \e[0m\n" "${BASH_VERSION}" >&2; exit "${ERR_UNSPPTBASH}"; }
-[[ ${BASH_VERSINFO[0]} -le 5 ]] && [[ ${BASH_VERSINFO[1]} -le 1 ]] && {
-  . ./var/global.var.sh; printf "\e[91m❌ Minimum requirement is bash 5.1. You are using '%s'! Bye... \e[0m\n" "${BASH_VERSION}" >&2; exit "${ERR_UNSPPTBASH}"; }
-
-declare -g VAR_HANDLER_AUTOBUILD="false"
-declare -gr VAR_CONTACT="security@coresecret.eu"
-declare -gr VAR_VERSION="Master V8.03.127.2025.06.02"
-
-### VERY EARLY CHECK FOR AUTO-BUILD, CONTACT, USAGE, AND VERSION STRING
-declare arg
-if [[ ${#} -eq 0 ]]; then . ./lib/lib_usage.sh; usage; exit 1; fi
-for arg in "$@"; do case "${arg,,}" in -a=*|--autobuild=*) declare -g VAR_HANDLER_AUTOBUILD=true; declare -g VAR_KERNEL="${arg#*=}";; esac; done
-for arg in "$@"; do case "${arg,,}" in -c|--contact) printf "\e[95mCISS.debian.live.builder Contact: %s\e[0m\n" "${VAR_CONTACT}"; exit 0;; esac; done
-for arg in "$@"; do case "${arg,,}" in -h|--help) . ./lib/lib_usage.sh; usage; exit 0;; esac; done
-for arg in "$@"; do case "${arg,,}" in -v|--version) printf "\e[95mCISS.debian.live.builder Version: %s\e[0m\n" "${VAR_VERSION}"; exit 0;; esac; done
-unset arg
-
-### VERY EARLY CHECK FOR XTRACE DEBUGGING
-if [[ $* == *" --debug "* ]]; then
-  . ./lib/lib_debug.sh
-  debugger "${@}"
-else
-  declare -grx VAR_EARLY_DEBUG=false
-fi
-
-### Advisory Lock
-exec 127>/var/lock/ciss_live_builder.lock || {
-  . ./var/global.var.sh
-  printf "\e[91m❌ Cannot open lockfile for writing! Bye... \e[0m\n" >&2
-  exit "${ERR_FLOCK_WRTG}"
-}
-
-if ! flock -x -n 127; then
-  . ./var/global.var.sh
-  printf "\e[91m❌ Another instance is running! Bye...\e[0m\n" >&2
-  exit "${ERR_FLOCK_COLL}"
-fi
-
-### Checking required packages
-. ./lib/lib_check_pkgs.sh
-check_pkgs
-
-### Dialog Output for Initialization
-if ! $VAR_HANDLER_AUTOBUILD; then . ./lib/lib_boot_screen.sh && boot_screen; fi
-
-### Updating Status of Dialog Gauge Bar
-if ! $VAR_HANDLER_AUTOBUILD; then printf "XXX\nUpdating variables ... \nXXX\n05\n" >&3; fi
-. ./var/global.var.sh
-. ./var/colors.var.sh
-
-### Updating Status of Dialog Gauge Bar
-if ! $VAR_HANDLER_AUTOBUILD; then printf "XXX\nEnabling Bash Error Handling ... \nXXX\n15\n" >&3; fi
-### For all options see https://www.gnu.org/software/bash/manual/bash.html#The-Set-Builtin
-set -o errexit   # Exit script when a command exits with non-zero status, the same as "set -e".
-set -o errtrace  # Any traps on ERR are inherited in a subshell environment, the same as "set -E".
-set -o functrace # Any traps on DEBUG and RETURN are inherited in a subshell environment, the same as "set -T".
-set -o nounset   # Exit script on use of an undefined variable, the same as "set -u".
-set -o pipefail  # Makes pipelines return the exit status of the last command in the pipe that failed.
-set -o noclobber # Prevent overwriting, the same as "set -C".
-
-### Updating Status of Dialog Gauge Bar
-if ! $VAR_HANDLER_AUTOBUILD; then printf "XXX\nAdditional initialization ... \nXXX\n25\n" >&3; fi
-### Initialization
-declare -gr ARGUMENTS_COUNT="$#"
-declare -gr ARG_STR_ORG_INPUT="$*"
-#declare -ar ARG_ARY_ORG_INPUT=("$@")
+### CATCH ARGUMENTS AND DECLARE BASIC VARIABLES.
+# shellcheck disable=SC2155
+declare -girx VAR_START_TIME="${SECONDS}"                                # Start time of script execution.
+declare -grx  VAR_PARAM_COUNT="$#"                                       # Arguments passed to script.
+declare -grx  VAR_PARAM_STRNG="$*"                                       # Arguments passed to script as string.
+declare -ag   ARY_PARAM_ARRAY=("$@")                                     # Arguments passed to script as an array.
+declare -grx  VAR_SETUP_FILE="${0##*/}"                                  # 'ciss_debian_live_builder.sh'
+declare -grx  VAR_SETUP_PATH="$(cd "$(dirname "${0}")" && pwd)"          # '/opt/git/CISS.debian.live.builder'
+declare -grx  VAR_SETUP_FULL="$(cd "$(dirname "${0}")" && pwd)/${0##*/}" # '/opt/git/CISS.debian.live.builder/ciss_debian_live_builder.sh'
 # shellcheck disable=SC2155
 declare -grx SCRIPT_FULLPATH="$(readlink -f "${BASH_SOURCE[0]:-$0}")"
 # shellcheck disable=SC2155
@@ -107,77 +36,214 @@ declare -grx SCRIPT_BASEPATH="$(dirname "${SCRIPT_FULLPATH}")"
 # shellcheck disable=SC2155
 declare -grx VAR_WORKDIR="$(dirname "${SCRIPT_FULLPATH}")"
 
-### Updating Status of Dialog Gauge Bar
-if ! $VAR_HANDLER_AUTOBUILD; then printf "XXX\nSourcing Libraries ... \nXXX\n50\n" >&3; fi
-. ./lib/lib_arg_parser.sh
-. ./lib/lib_arg_priority_check.sh
-. ./lib/lib_cdi.sh
-. ./lib/lib_change_splash.sh
-. ./lib/lib_check_dhcp.sh
-. ./lib/lib_check_hooks.sh
-. ./lib/lib_check_kernel.sh
-. ./lib/lib_check_provider.sh
-. ./lib/lib_check_stats.sh
-. ./lib/lib_check_var.sh
-. ./lib/lib_clean_screen.sh
-. ./lib/lib_clean_up.sh
-. ./lib/lib_copy_integrity.sh
-. ./lib/lib_hardening_root_pw.sh
-. ./lib/lib_hardening_ssh.sh
-. ./lib/lib_hardening_ultra.sh
-. ./lib/lib_helper_ip.sh
-. ./lib/lib_lb_build_start.sh
-. ./lib/lib_lb_config_start.sh
-. ./lib/lib_lb_config_write.sh
-. ./lib/lib_provider_netcup.sh
-. ./lib/lib_run_analysis.sh
-. ./lib/lib_sanitizer.sh
-. ./lib/lib_trap_on_err.sh
-. ./lib/lib_trap_on_exit.sh
-. ./lib/lib_usage.sh
+### PRELIMINARY CHECKS.
+### No ash, dash, ksh, sh.
+# shellcheck disable=2292
+[ -z "${BASH_VERSINFO[0]}" ] && {
+  . ./var/global.var.sh
+  printf "\e[91m❌ Please make sure you are using 'bash'! Bye... \e[0m\n" >&2
+  exit "${ERR_UNSPPTBASH}"
+}
+
+### No zsh.
+[[ -n "${ZSH_VERSION:-}" ]] && {
+  . ./var/global.var.sh
+  printf "\e[91m❌ Please make sure you are using 'bash'! Bye... \e[0m\n" >&2
+  exit "${ERR_UNSPPTBASH}"
+}
+
+### Not root.
+[[ ${EUID} -ne 0 ]] && {
+  . ./var/global.var.sh
+  printf "\e[91m❌ Please make sure you are 'root'! Bye... \e[0m\n" >&2
+  exit "${ERR_NOT_USER_0}"
+}
+
+### Check to be not called by sh.
+# shellcheck disable=2312
+[[ $(kill -l | grep -c SIG) -eq 0 ]] && {
+  . ./var/global.var.sh
+  printf "\e[91m❌ Please make sure you are calling the script without leading 'sh'! Bye... \e[0m\n" >&2
+  exit "${ERR_UNSPPTBASH}"
+}
+
+### Check to be not sourced.
+[[ "${BASH_SOURCE[0]}" != "$0" ]] && {
+  . ./var/global.var.sh
+  printf "\e[91m❌ This script must be executed, not sourced. Please run '%s' directly! Bye... \e[0m\n" "$0" >&2
+  exit "${ERR_UNSPPTBASH}"
+}
+
+### Minimum Bash version 5.
+[[ ${BASH_VERSINFO[0]} -lt 5 ]] && {
+  . ./var/global.var.sh
+  printf "\e[91m❌ Minimum requirement is bash 5.1. You are using '%s'! Bye... \e[0m\n" "${BASH_VERSION}" >&2
+  exit "${ERR_UNSPPTBASH}"
+}
+
+### Minimum Bash version 5.1.
+[[ ${BASH_VERSINFO[0]} -le 5 ]] && [[ ${BASH_VERSINFO[1]} -le 1 ]] && {
+  . ./var/global.var.sh
+  printf "\e[91m❌ Minimum requirement is bash 5.1. You are using '%s'! Bye... \e[0m\n" "${BASH_VERSION}" >&2
+  exit "${ERR_UNSPPTBASH}"
+}
+
+### No arguments.
+[[ ${#} -eq 0 ]] && {
+  . ./lib/lib_usage.sh
+  usage
+  exit 1
+}
+
+### SOURCING MUST SET EARLY VARIABLES, GUARD_SOURCING(), CHECK_GIT()
+. ./var/early.var.sh
+. ./lib/lib_guard_sourcing.sh
+. ./lib/lib_source_guard.sh
+source_guard "./lib/lib_git_var.sh"
+
+### CHECK FOR CONTACT, HELP, VERSION STRING, AND XTRACE DEBUG
+for arg in "$@"; do case "${arg,,}" in -c|--contact) . ./lib/lib_contact.sh; contact; exit 0;; esac; done
+for arg in "$@"; do case "${arg,,}" in -h|--help)    . ./lib/lib_usage.sh  ; usage  ; exit 0;; esac; done
+for arg in "$@"; do case "${arg,,}" in -v|--version) . ./lib/lib_version.sh; version; exit 0;; esac; done
+
+### ALL CHECKS DONE. READY TO START THE SCRIPT
+source_guard "./var/bash.var.sh"
+check_git
+for arg in "$@"; do case "${arg,,}" in -d|--debug) . ./meta_sources_debug.sh; debugger "${@}";; esac; done
+declare -gx VAR_SETUP="true"
+
+### SOURCING VARIABLES
+[[ "${VAR_SETUP}" == true ]] && {
+  source_guard "./var/color.var.sh"
+  source_guard "./var/global.var.sh"
+}
+
+### SOURCING LIBRARIES
+[[ "${VAR_SETUP}" == true ]] && {
+  source_guard "./lib/lib_arg_parser.sh"
+  source_guard "./lib/lib_arg_priority_check.sh"
+  source_guard "./lib/lib_boot_screen.sh"
+  source_guard "./lib/lib_cdi.sh"
+  source_guard "./lib/lib_change_splash.sh"
+  source_guard "./lib/lib_check_dhcp.sh"
+  source_guard "./lib/lib_check_hooks.sh"
+  source_guard "./lib/lib_check_kernel.sh"
+  source_guard "./lib/lib_check_pkgs.sh"
+  source_guard "./lib/lib_check_provider.sh"
+  source_guard "./lib/lib_check_stats.sh"
+  source_guard "./lib/lib_check_var.sh"
+  source_guard "./lib/lib_clean_screen.sh"
+  source_guard "./lib/lib_clean_up.sh"
+  source_guard "./lib/lib_copy_integrity.sh"
+  source_guard "./lib/lib_hardening_root_pw.sh"
+  source_guard "./lib/lib_hardening_ssh.sh"
+  source_guard "./lib/lib_hardening_ultra.sh"
+  source_guard "./lib/lib_helper_ip.sh"
+  source_guard "./lib/lib_lb_build_start.sh"
+  source_guard "./lib/lib_lb_config_start.sh"
+  source_guard "./lib/lib_lb_config_write.sh"
+  source_guard "./lib/lib_lb_config_write_trixie.sh"
+  source_guard "./lib/lib_note_target.sh"
+  source_guard "./lib/lib_provider_netcup.sh"
+  source_guard "./lib/lib_run_analysis.sh"
+  source_guard "./lib/lib_sanitizer.sh"
+  source_guard "./lib/lib_trap_on_err.sh"
+  source_guard "./lib/lib_trap_on_exit.sh"
+  source_guard "./lib/lib_usage.sh"
+}
+
+### ADVISORY LOCK
+exec 127>/var/lock/ciss_live_builder.lock || {
+  printf "\e[91m❌ Cannot open lockfile for writing! Bye... \e[0m\n" >&2
+  exit "${ERR_FLOCK_WRTG}"
+}
+
+if ! flock -x -n 127; then
+  printf "\e[91m❌ Another instance is running! Bye...\e[0m\n" >&2
+  exit "${ERR_FLOCK_COLL}"
+fi
+
+### CHECK FOR AUTOBUILD MODE
+for arg in "$@"; do case "${arg,,}" in -a=*|--autobuild=*) declare -gx VAR_HANDLER_AUTOBUILD="true"; declare -gx VAR_KERNEL="${arg#*=}";; esac; done; unset arg
+for dir in /usr/local/sbin /usr/sbin; do case ":${PATH}:" in *":${dir}:"*) ;; *) PATH="${PATH}:${dir}" ;; esac; done; export PATH; unset dir
+
+### CHECKING REQUIRED PACKAGES
+check_pkgs
+
+### DIALOG OUTPUT FOR INITIALIZATION
+if ! ${VAR_HANDLER_AUTOBUILD}; then boot_screen; fi
 
 ### Updating Status of Dialog Gauge Bar
-if ! $VAR_HANDLER_AUTOBUILD; then printf "XXX\nActivate traps ... \nXXX\n55\n" >&3; fi
-### Following the CISS Bash naming and ordering scheme
+if ! ${VAR_HANDLER_AUTOBUILD}; then printf "XXX\nInitialization done ... \nXXX\n15\n" >&3; fi
+
+### Updating Status of Dialog Gauge Bar
+if ! ${VAR_HANDLER_AUTOBUILD}; then printf "XXX\nAdditional initialization ... \nXXX\n30\n" >&3; fi
+
+### Updating Status of Dialog Gauge Bar
+if ! ${VAR_HANDLER_AUTOBUILD}; then printf "XXX\nActivate traps ... \nXXX\n50\n" >&3; fi
+### Following the CISS Bash naming and ordering scheme:
 trap 'trap_on_exit "$?"' EXIT
 trap 'trap_on_err "$?" "${BASH_SOURCE[0]}" "${LINENO}" "${FUNCNAME[0]:-main}" "${BASH_COMMAND}"' ERR
 
 ### Updating Status of Dialog Gauge Bar
-if ! $VAR_HANDLER_AUTOBUILD; then printf "XXX\nSanitizing Arguments ... \nXXX\n70\n" >&3; fi
+if ! ${VAR_HANDLER_AUTOBUILD}; then printf "XXX\nSanitizing Arguments ... \nXXX\n75\n" >&3; fi
 arg_check "$@"
 declare -ar ARY_ARG_SANITIZED=("$@")
 declare -gr VAR_ARG_SANITIZED="${ARY_ARG_SANITIZED[*]}"
 
 ### Updating Status of Dialog Gauge Bar
-if ! $VAR_HANDLER_AUTOBUILD; then printf "XXX\nParsing Arguments ... \nXXX\n90\n" >&3; fi
+if ! ${VAR_HANDLER_AUTOBUILD}; then printf "XXX\nParsing Arguments ... \nXXX\n90\n" >&3; fi
 arg_parser "$@"
 
 ### Updating Status of Dialog Gauge Bar
-if ! $VAR_HANDLER_AUTOBUILD; then printf "XXX\nFinal checks ... \nXXX\n95\n" >&3; fi
+if ! ${VAR_HANDLER_AUTOBUILD}; then printf "XXX\nFinal checks ... \nXXX\n95\n" >&3; fi
 clean_ip
 
 ### Updating Status of Dialog Gauge Bar
-if ! $VAR_HANDLER_AUTOBUILD; then printf "XXX\nInitialization completed ... \nXXX\n100\n" >&3; sleep 1; fi
+if ! ${VAR_HANDLER_AUTOBUILD}; then printf "XXX\nInitialization completed ... \nXXX\n100\n" >&3; sleep 1; fi
 
-if ! $VAR_HANDLER_AUTOBUILD; then boot_screen_cleaner; fi
+### Turn off Dialog Wrapper
+if ! ${VAR_HANDLER_AUTOBUILD}; then boot_screen_cleaner; fi
 
 ### MAIN Program
 arg_priority_check
 check_stats
-if ! $VAR_HANDLER_AUTOBUILD; then check_provider; fi
-if ! $VAR_HANDLER_AUTOBUILD; then check_kernel; fi
+if ! ${VAR_HANDLER_AUTOBUILD}; then check_provider; fi
+if ! ${VAR_HANDLER_AUTOBUILD}; then check_kernel; fi
+
+if [[ ! "${VAR_SSHFP}" == "true" ]]; then
+  rm -f "${SCRIPT_BASEPATH}/config/includes.chroot/root/.ssh/id_2025_ed25519_ciss_primordial"
+  rm -f "${SCRIPT_BASEPATH}/config/includes.chroot/root/.ssh/id_2025_ed25519_ciss_primordial.pub"
+fi
+
 check_hooks
 hardening_ssh
 lb_config_start
-lb_config_write
 
+if [[ "${VAR_SUITE}" == "bookworm" ]]; then
+
+  lb_config_write
+  rm -f "${SCRIPT_BASEPATH}/config/hooks/live/9998_sources_list_trixie.chroot"
+  rm -f "${SCRIPT_BASEPATH}/config/includes.chroot/etc/login.defs"
+
+else
+
+  lb_config_write_trixie
+  rm -f "${SCRIPT_BASEPATH}/config/hooks/live/0003_install_backports.chroot"
+  rm -f "${SCRIPT_BASEPATH}/config/hooks/live/9998_sources_list_bookworm.chroot"
+
+fi
+
+# shellcheck disable=SC2164
 cd "${VAR_WORKDIR}"
+
 hardening_ultra
 hardening_root_pw
 change_splash
 check_dhcp
 cdi
 provider_netcup
+note_target
 
 ### Start the build process
 set +o errtrace

config.mk.sample

@@ -0,0 +1,21 @@
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-08-21; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.live.builder
+# SPDX-Security-Contact: security@coresecret.eu
+
+BUILD_DIR            ?=
+PROVIDER_NETCUP_IPV6 ?=
+ROOT_PASSWORD_FILE   ?=
+SSH_PORT             ?=
+SSH_PUBKEY           ?=
+
+### Comma-separated jump hosts (can be empty):
+JUMP_HOSTS           ?=
+
+# vim: set ft=make noet ts=8 sw=8

config/bootloaders/grub-efi/grub.cfg

@@ -2,7 +2,7 @@
 # SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.

config/bootloaders/grub-pc/grub.cfg

@@ -2,7 +2,7 @@
 # SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.

config/hooks/live/0000_basic_chroot_setup.chroot

@@ -1,27 +1,28 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
-# sleep 1
 
-mkdir -p /root/.ciss/dlb/backup
-chmod 0700 /root/.ciss/dlb/backup
+export DEBIAN_FRONTEND="noninteractive"
+apt-get update -qq
+
+mkdir -p /root/.ciss/dlb/{backup,log}
+chmod 0700 /root/.ciss/dlb/{backup,log}
 
 mkdir -p /root/git
 chmod 0700 /root/git
 
 printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
-# sleep 1
 
 exit 0
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/0001_initramfs_modules.chroot

@@ -1,27 +1,32 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
-# SPDX-LicenseComment: This file is part of the CISS.hardened.installer framework.
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
-# sleep 1
 
 #######################################
-# Get all NIC Driver of the current Host-machine
+# Get all NIC drivers of the current Host machine.
+# Globals:
+#   None
 # Arguments:
-#  None
+#   None
+# Returns:
+#   0: on success
 #######################################
 grep_nic_driver_modules() {
   declare _mods
-  # Gather all Driver and sort unique
+
+  ### Gather all Driver and sort unique.
+  # shellcheck disable=SC2312
   readarray -t _mods < <(
     lspci -k \
       | grep -A2 -i ethernet \
@@ -32,26 +37,36 @@ grep_nic_driver_modules() {
 
   declare nic_module
   declare nic_modules
+
   if [[ "${#_mods[@]}" -eq 1 ]]; then
+
     nic_module="${_mods[0]}"
     echo "${nic_module}"
+
   else
+
     nic_modules="${_mods[*]}"
     echo "${nic_modules}"
+
   fi
+
+  return 0
 }
 
+export DEBIAN_FRONTEND="noninteractive"
+apt-get install -y intel-microcode amd64-microcode
+
 # shellcheck disable=SC2155
 declare nic_driver="$(grep_nic_driver_modules)"
 cat << EOF >| /etc/initramfs-tools/modules
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
-# SPDX-LicenseComment: This file is part of the CISS.hardened.installer framework.
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
@@ -67,56 +82,111 @@ cat << EOF >| /etc/initramfs-tools/modules
 # raid1
 # sd_mod
 
-### QEMU Bochs-compatible virtual machine support
-bochs
+### Load AppArmor early:
+apparmor
 
-### Device-mapper core module (required for all dm_* features)
-dm_mod
+### Entropy source for '/dev/random':
+jitterentropy_rng
+rng_core
 
-### Device-mapper integrity target (provides integrity checking)
-dm-integrity
+### Live-ISO-Stack:
+loop
+squashfs
+overlay
 
-### Device-mapper crypt target (provides disk encryption)
-dm-crypt
-
-### Generic AES block cipher implementation (used by dm-crypt)
-aes_generic
-
-### Generic SHA-256 hashing algorithm (used by various crypto and integrity targets)
-sha256_generic
-
-### Generic CRC32C checksum implementation (used by btrfs and other filesystems)
-crc32c_generic
-
-### Main btrfs filesystem module
+### Main btrfs-Stack:
 btrfs
-
-### Zstandard compression support for btrfs
+lzo
+xor
+xxhash
+zstd
 zstd_compress
 
-### XOR parity implementation for RAID functionality
-xor
+### Main ext4-Stack:
+ext4
+jbd2
+libcrc32c
 
-### RAID6 parity generation module
+### Main VFAT/ESP/FAT/UEFI-Stack:
+exfat
+fat
+nls_ascii
+nls_cp437
+nls_iso8859-1
+nls_iso8859-15
+nls_utf8
+vfat
+
+### Device mapper, encryption & integrity:
+dm_mod
+dm_crypt
+dm_integrity
+dm_verity
+
+### Main cryptography-Stack:
+aes_generic
+blake2b_generic
+crc32c_generic
+cryptd
+libcrc32c
+sha256_generic
+sha512_generic
+xts
+
+### QEMU Bochs-compatible virtual machine support:
+bochs
+
+### RAID6 parity generation module:
 raid6_pq
 
-### Combined RAID4/5/6 support module
+### Combined RAID4/5/6 support module:
 raid456
 
-### Network Driver Host-machine
+### SCSI/SATA-Stack:
+sd_mod
+sr_mod
+sg
+ahci
+libahci
+ata_generic
+libata
+scsi_mod
+scsi_dh_alua
+
+### NVMe-Stack:
+nvme
+nvme_core
+
+### USB-Stack:
+xhci_pci
+xhci_hcd
+ehci_pci
+ohci_pci
+uhci_hcd
+usb_storage
+uas
+
+### Virtual-Machines-Stack:
+virtio_pci
+virtio_blk
+virtio_scsi
+virtio_rng
+virtio_console
+
+### Network Driver Host-machine:
 "${nic_driver}"
 
 EOF
 
 cat << 'EOF' >| /etc/initramfs-tools/update-initramfs.conf
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
-# SPDX-LicenseComment: This file is part of the CISS.hardened.installer framework.
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
@@ -145,13 +215,13 @@ EOF
 
 cat << 'EOF' >| /etc/initramfs-tools/initramfs.conf
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
-# SPDX-LicenseComment: This file is part of the CISS.hardened.installer framework.
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
@@ -207,9 +277,9 @@ COMPRESS=zstd
 # Defaults vary by compressor.
 #
 # Valid values are:
-# 1–9 for gzip|bzip2|lzma|lzop
-# 0–9 for  lz4|xz
-# 0–19 for zstd
+# 1-9 for gzip|bzip2|lzma|lzop
+# 0-9 for  lz4|xz
+# 0-19 for zstd
 # COMPRESSLEVEL=3
 
 #
@@ -250,13 +320,13 @@ EOF
 cat << 'EOF' >> /etc/initramfs-tools/hooks/ciss_debian_live_builder
 #!/bin/sh
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
-# SPDX-LicenseComment: This file is part of the CISS.hardened.installer framework.
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
@@ -285,10 +355,9 @@ EOF
 chmod 0755 /etc/initramfs-tools/hooks/ciss_debian_live_builder
 
 ### Regenerate the initramfs for the live system kernel
-update-initramfs -u -k all
+update-initramfs -u -k all -v
 
 printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
-# sleep 1
 
 exit 0
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/0002_verify_checksums.chroot

@@ -1,18 +1,17 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
-# SPDX-LicenseComment: This file is part of the CISS.hardened.installer framework.
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
-# sleep 1
 
 target="/usr/lib/live/boot/0030-verify-checksums"
 src="$(mktemp)"
@@ -24,13 +23,13 @@ fi
 cat << 'EOF' >| "${src}"
 #!/bin/sh
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
-# SPDX-LicenseComment: This file is part of the CISS.hardened.installer framework.
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
@@ -138,7 +137,6 @@ rm -f "${src}"
 unset target src
 
 printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
-# sleep 1
 
 exit 0
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/0010_install_apparmor.chroot

@@ -0,0 +1,34 @@
+#!/bin/bash
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.live.builder
+# SPDX-Security-Contact: security@coresecret.eu
+set -Ceuo pipefail
+
+printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
+
+export DEBIAN_FRONTEND="noninteractive"
+apt-get install -y --no-install-recommends apparmor apparmor-utils apparmor-profiles apparmor-profiles-extra
+
+install -d /etc/systemd/system/apparmor.service.d
+cat << EOF >| /etc/systemd/system/apparmor.service.d/10-live-force.conf
+[Unit]
+### Drop any negative live conditions that would skip AppArmor on overlay.
+ConditionPathExists=
+
+### Ensure we only rely on the security=apparmor condition.
+ConditionSecurity=apparmor
+EOF
+
+install -d -m 0755 /var/cache/apparmor
+
+printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
+
+exit 0
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/0040_ssh_config_setup.chroot

@@ -0,0 +1,44 @@
+#!/bin/bash
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.live.builder
+# SPDX-Security-Contact: security@coresecret.eu
+set -Ceuo pipefail
+
+printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
+
+cat << EOF >> /etc/ssh/ssh_config.d/10-sshfp.conf
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.live.builder
+# SPDX-Security-Contact: security@coresecret.eu
+
+Host git.coresecret.dev
+    Port                    42842
+    VerifyHostKeyDNS        yes
+    StrictHostKeyChecking   yes
+    GlobalKnownHostsFile    /etc/ssh/ssh_known_hosts
+    UserKnownHostsFile      /dev/null
+    HostKeyAlgorithms       ssh-ed25519-cert-v01@openssh.com,ssh-ed25519,rsa-sha2-512-cert-v01@openssh.com,rsa-sha2-512,rsa-sha2-256-cert-v01@openssh.com,rsa-sha2-256
+    CanonicalizeHostname    no
+    UpdateHostKeys          no
+
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf
+EOF
+
+printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
+
+exit 0
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/0050_activate_root.chroot

@@ -1,32 +1,32 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
-# SPDX-LicenseComment: This file is part of the CISS.hardened.installer framework.
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
-# sleep 1
 
 if [[ ! -f /root/.pwd ]]; then
+
   printf "\e[93m++++ ++++ ++++ ++++ ++++ ++++ ++ ❌ /root/.pwd NOT found. \e[0m\n"
-  # sleep 1
   printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ❌ Exiting Hook ... \e[0m\n"
-  # sleep 1
   printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' done. Nothing changed. \e[0m\n" "${0}"
   exit 0
+
 fi
 
 cd /root
 
+# shellcheck disable=SC2312
 cp /etc/shadow /root/.ciss/dlb/backup/shadow.bak."$(date +%F_%T)"
-chmod 600 /root/.ciss/dlb/backup/shadow.bak.*
+chmod 0600 /root/.ciss/dlb/backup/shadow.bak.*
 
 declare hashed_pwd
 declare safe_hashed_pwd
@@ -38,16 +38,18 @@ sed -i "s|^user:[^:]*:\(.*\)|user:${safe_hashed_pwd}:\1|" /etc/shadow
 unset hashed_pwd safe_hashed_pwd
 
 cat /etc/shadow
-# sleep 1
 
 if shred -vfzu -n 5 /root/.pwd; then
+
   printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ Password file /root/.pwd: -vfzu -n 5 >> done. \e[0m\n"
+
 else
+
   printf "\e[91m++++ ++++ ++++ ++++ ++++ ++++ ++ ❌ Password file /root/.pwd: -vfzu -n 5 >> NOT successful. \e[0m\n" >&2
+
 fi
 
 printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
-# sleep 1
 
 exit 0
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/0080_keyboard_layout.chroot

@@ -1,18 +1,17 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
-# sleep 1
 
 cat << 'EOF' >| /etc/default/keyboard
 XKBMODEL="pc105"
@@ -25,7 +24,6 @@ EOF
 dpkg-reconfigure -f noninteractive keyboard-configuration
 
 printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
-# sleep 1
 
 exit 0
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/0090_haveged.chroot

@@ -1,21 +1,20 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
-# sleep 1
 
-apt-get update -y
-apt-get install --no-install-recommends haveged -y
+export DEBIAN_FRONTEND="noninteractive"
+apt-get install -y --no-install-recommends haveged
 
 cd /root
 cat << 'EOF' >| /etc/default/haveged
@@ -25,18 +24,8 @@ cat << 'EOF' >| /etc/default/haveged
 DAEMON_ARGS="-w 2048 -v 1"
 EOF
 
-#mkdir -p /etc/systemd/system/haveged.service.d
-#cat << 'EOF' >| /etc/systemd/system/haveged.service.d/override.conf
-#[Service]
-#NoNewPrivileges=yes
-#ReadWritePaths=/dev/random /dev/urandom
-#AmbientCapabilities=
-#User=haveged
-#Group=nogroup
-#EOF
 
 printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
-# sleep 1
 
 exit 0
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/0120_set_hostname.chroot

@@ -1,15 +1,15 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
 # sleep 1

config/hooks/live/0130_machineid.chroot

@@ -1,15 +1,15 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
 # sleep 1

config/hooks/live/0400_eza_install.chroot

@@ -1,18 +1,17 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
-# sleep 1
 
 cd /root
 
@@ -24,7 +23,8 @@ wget -qO- https://raw.githubusercontent.com/eza-community/eza/main/deb.asc | gpg
 echo "deb [signed-by=/etc/apt/keyrings/gierens.gpg] http://deb.gierens.de stable main" | tee /etc/apt/sources.list.d/gierens.list
 chmod 644 /etc/apt/keyrings/gierens.gpg /etc/apt/sources.list.d/gierens.list
 
-apt-get update -y
+export DEBIAN_FRONTEND="noninteractive"
+apt-get update
 apt-get install -y eza
 
 git clone https://github.com/eza-community/eza-themes.git
@@ -133,14 +133,6 @@ symlink_path: {foreground: Cyan}
 control_char: {foreground: Red}
 broken_symlink: {foreground: Red}
 broken_path_overlay: {foreground: Default, is_underlined: true}
-
-filenames:
-  # Custom filename-based overrides
-  # Cargo.toml: {icon: {glyph: 🦀}}
-
-extensions:
-  # Custom extension-based overrides
-  # rs: {filename: {foreground: Red}, icon: {glyph: 🦀}}
 EOF
 
 chmod 0644 "/root/eza-themes/themes/centurion.yml"
@@ -153,10 +145,7 @@ unzip /tmp/nerd/Hack.zip -d /root/.local/share/fonts
 fc-cache -fv
 rm -rf /tmp/nerd
 
-unset repo latest_release download_url
-
 printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
-# sleep 1
 
 exit 0
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/0800_lynis_setup.chroot

@@ -1,28 +1,27 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
-# sleep 1
 
 curl -fsSL https://packages.cisofy.com/keys/cisofy-software-public.key | gpg --dearmor -o /etc/apt/trusted.gpg.d/cisofy-software-public.gpg
 echo "deb [arch=amd64,arm64 signed-by=/etc/apt/trusted.gpg.d/cisofy-software-public.gpg] https://packages.cisofy.com/community/lynis/deb/ stable main" | tee /etc/apt/sources.list.d/cisofy-lynis.list
 
-apt-get update -y
+export DEBIAN_FRONTEND="noninteractive"
+apt-get update
 apt-get install -y lynis
 lynis show version
 
 printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
-# sleep 1
 
 exit 0
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/0810_chrony_setup.chroot

@@ -1,28 +1,42 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
-# sleep 1
 
 mkdir -p /var/log/chrony
-# See https://coresecret.eu/tutorials/debian-package-glossary/ for a brief description of the installed packages.
-apt-get install chrony -y
+
+export DEBIAN_FRONTEND="noninteractive"
+export TZ="Etc/UTC"
+
+apt-get install -y adjtimex chrony tzdata
+
 systemctl enable chrony.service
 
 mv /etc/chrony/chrony.conf /root/.ciss/dlb/backup/chrony.conf.bak
-chmod 644 /root/.ciss/dlb/backup/chrony.conf.bak
+chmod 0644 /root/.ciss/dlb/backup/chrony.conf.bak
+
+cat << EOF >| /etc/chrony/chrony.conf
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.live.builder
+# SPDX-Security-Contact: security@coresecret.eu
 
-cat << 'EOF' >| /etc/chrony/chrony.conf
 # Include configuration files found in /etc/chrony/conf.d.
 confdir /etc/chrony/conf.d
 driftfile /var/lib/chrony/chrony.drift
@@ -36,17 +50,14 @@ log tracking measurements statistics
 
 authselectmode require
 
-server ptbtime1.ptb.de iburst nts minpoll 5 maxpoll 9
-server ptbtime2.ptb.de iburst nts minpoll 5 maxpoll 9
-server ptbtime3.ptb.de iburst nts minpoll 5 maxpoll 9
-server ptbtime4.ptb.de iburst nts noselect minpoll 5 maxpoll 9
-# server nts.netnod.se iburst nts minpoll 5 maxpoll 9
-
-# server ntp.ripe.net iburst nts minpoll 5 maxpoll 9
-# server ntp12.metas.ch iburst nts minpoll 5 maxpoll 9
-# server ntp2.tecnico.ulisboa.pt iburst nts minpoll 5 maxpoll 9
-# server time-c-b.nist.gov iburst nts minpoll 5 maxpoll 9
-server ntp0.fau.de iburst nts minpoll 5 maxpoll 9
+server ntp.ripe.net      iburst nts minpoll 5 maxpoll 9
+server ptbtime3.ptb.de   iburst nts minpoll 5 maxpoll 9
+server ptbtime2.ptb.de   iburst nts minpoll 5 maxpoll 9
+server ptbtime1.ptb.de   iburst nts minpoll 5 maxpoll 9
+server ntp13.metas.ch    iburst nts minpoll 5 maxpoll 9
+server time-c-b.nist.gov iburst nts minpoll 5 maxpoll 9
+server sth1.ntp.se       iburst nts minpoll 5 maxpoll 9
+server ntp0.fau.de       iburst nts minpoll 5 maxpoll 9
 
 leapsectz right/UTC
 
@@ -56,13 +67,50 @@ maxupdateskew 100.0
 
 rtcsync
 
-makestep 1 3
+makestep 0.25 3
+
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf
 EOF
 
-chmod 644 /etc/chrony/chrony.conf
+chmod 0644 /etc/chrony/chrony.conf
+
+[[ -f /root/.ciss/check_chrony.sh ]] && chmod 0700 /root/.ciss/check_chrony.sh
+
+### Build right/UTC from tzdata leap table if missing.
+if [[ ! -e /usr/share/zoneinfo/right/UTC ]]; then
+
+  install -d -m 0755 /usr/share/zoneinfo/right
+
+  ### Minimal zic source for a fixed UTC zone.
+  declare -r tmp_src="/tmp/UTC.src"
+  printf 'Zone UTC  0  -  UTC\n' > "${tmp_src}"
+
+  ### Prefer the zic-format leapseconds file.
+  declare leap_zic="/usr/share/zoneinfo/leapseconds"
+
+  if [[ -s "${leap_zic}" ]]; then
+
+    zic -d /usr/share/zoneinfo/right -L "${leap_zic}" "${tmp_src}"
+
+  else
+
+    echo "WARNING: ${leap_zic} not found; building right/UTC without leap info." >&2
+    zic -d /usr/share/zoneinfo/right -L /dev/null "${tmp_src}"
+
+  fi
+
+  rm -f "${tmp_src}"
+
+fi
+
+if [[ -e /usr/share/zoneinfo/right/UTC ]]; then
+
+  ### Expect to see 'Sat Dec 31 23:59:60 UTC 2016' rendered in right/UTC
+  TZ=right/UTC date -ud '2017-01-01 00:00:00 -1 second' || true
+
+fi
 
 printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
-# sleep 1
 
 exit 0
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/0820_kernel_hardening_checker.chroot

@@ -1,24 +1,22 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
-# sleep 1
 
 cd /root/git
 git clone https://github.com/a13xp0p0v/kernel-hardening-checker.git
 
 printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
-# sleep 1
 
 exit 0
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/0822_ssh_restart_hook.chroot

@@ -1,18 +1,17 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
-# sleep 1
 
 cd /root
 declare target_script="/etc/cron.d/restart-ssh"
@@ -21,15 +20,15 @@ cat << 'EOF' >| "${target_script}"
 @reboot root /usr/local/bin/restart-ssh.sh
 EOF
 
-chmod 644 "${target_script}"
+chmod 0644 "${target_script}"
 
 cat << 'EOF' >| /usr/local/bin/restart-ssh.sh
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
@@ -43,10 +42,8 @@ systemctl start ssh
 EOF
 
 chmod +x /usr/local/bin/restart-ssh.sh
-unset target_script
 
 printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
-# sleep 1
 
 exit 0
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/0825_my_sqltuner_perl.chroot

@@ -1,24 +1,22 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
-# sleep 1
 
 cd /root/git
 git clone --depth 1 -b master https://github.com/major/MySQLTuner-perl.git
 
 printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
-# sleep 1
 
 exit 0
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/0830_download_yq.chroot

@@ -1,24 +1,22 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
-# sleep 1
 
 wget https://github.com/mikefarah/yq/releases/latest/download/yq_linux_amd64 -O /usr/bin/yq
 chmod +x /usr/bin/yq
 
 printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
-# sleep 1
 
 exit 0
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/0835_testssl.sh.chroot

@@ -1,24 +1,22 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
-# sleep 1
 
 cd /root/git
 git clone https://github.com/testssl/testssl.sh.git
 
 printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
-# sleep 1
 
 exit 0
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/0840_ufw_abuse_ipdb_reporter.chroot

@@ -1,20 +1,19 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
-# sleep 1
 
-apt-get install -y curl
+export DEBIAN_FRONTEND="noninteractive"
 curl -fsSL https://deb.nodesource.com/setup_22.x | sudo -E bash - && \
 apt-get install -y nodejs
 
@@ -22,7 +21,6 @@ cd /root/git
 git clone https://github.com/sefinek/UFW-AbuseIPDB-Reporter.git
 
 printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
-# sleep 1
 
 exit 0
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/0845_harbian_audit.chroot

@@ -1,15 +1,15 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
 # sleep 1

config/hooks/live/0850_ssh_audit.chroot

@@ -1,15 +1,15 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
-# SPDX-LicenseComment: This file is part of the CISS.hardened.installer framework.
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
 # sleep 1

config/hooks/live/0855_dnsviz.chroot

@@ -1,15 +1,15 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
-# SPDX-LicenseComment: This file is part of the CISS.hardened.installer framework.
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
 # sleep 1

config/hooks/live/0860_sops.chroot

@@ -0,0 +1,53 @@
+#!/bin/bash
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.live.builder
+# SPDX-Security-Contact: security@coresecret.eu
+set -Ceuo pipefail
+
+printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
+
+export DEBIAN_FRONTEND=noninteractive
+
+SOPS_VER="v3.11.0"
+ARCH="$(dpkg --print-architecture)"
+case "${ARCH}" in
+  amd64)  SOPS_FILE="sops-${SOPS_VER}.linux.amd64" ;;
+  arm64)  SOPS_FILE="sops-${SOPS_VER}.linux.arm64" ;;
+  *)  echo "Unsupported arch: ${ARCH}" >&2; exit 1 ;;
+esac
+
+cd /tmp
+
+curl -fsSLO "https://github.com/getsops/sops/releases/download/${SOPS_VER}/${SOPS_FILE}"
+curl -fsSLO "https://github.com/getsops/sops/releases/download/${SOPS_VER}/sops-${SOPS_VER}.checksums.txt"
+curl -fsSLO "https://github.com/getsops/sops/releases/download/${SOPS_VER}/sops-${SOPS_VER}.checksums.pem"
+curl -fsSLO "https://github.com/getsops/sops/releases/download/${SOPS_VER}/sops-${SOPS_VER}.checksums.sig"
+
+cosign verify-blob "sops-${SOPS_VER}.checksums.txt" \
+  --certificate    "sops-${SOPS_VER}.checksums.pem" \
+  --signature      "sops-${SOPS_VER}.checksums.sig" \
+  --certificate-identity-regexp="https://github.com/getsops" \
+  --certificate-oidc-issuer="https://token.actions.githubusercontent.com"
+
+sha256sum -c "sops-${SOPS_VER}.checksums.txt" --ignore-missing
+
+install -m 0755 "${SOPS_FILE}" /usr/local/bin/sops
+sops --version --check-for-updates
+age --version
+
+rm -f "/tmp/${SOPS_FILE}"
+rm -f "/tmp/sops-${SOPS_VER}.checksums.txt"
+rm -f "/tmp/sops-${SOPS_VER}.checksums.pem"
+rm -f "/tmp/sops-${SOPS_VER}.checksums.sig"
+
+printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
+
+exit 0
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/0900_ufw_setup.chroot

@@ -1,15 +1,15 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
 # sleep 1

config/hooks/live/9900_process_accounting.chroot

@@ -1,33 +1,38 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
-# SPDX-LicenseComment: This file is part of the CISS.hardened.installer framework.
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
-# sleep 1
 
+export DEBIAN_FRONTEND="noninteractive"
 apt-get install -y acct
 
 if [[ ! -d /etc/systemd/system/multi-user.target.wants ]]; then
+
   mkdir -p /etc/systemd/system/multi-user.target.wants
+
 fi
 
 if ln -s /lib/systemd/system/acct.service /etc/systemd/system/multi-user.target.wants/acct.service; then
+
   printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ 'Process Accounting' enabled successful. \e[0m\n"
+
 else
+
   printf "\e[91m++++ ++++ ++++ ++++ ++++ ++++ ++ ❌ 'Process Accounting' already enabled. \e[0m\n" >&2
+
 fi
 
 printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
-# sleep 1
 
 exit 0
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/9910_motd.chroot

@@ -1,18 +1,17 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
-# SPDX-LicenseComment: This file is part of the CISS.hardened.installer framework.
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
-# sleep 1
 
 mkdir -p /root/.ciss/dlb/backup/update-motd.d
 cp -af /etc/update-motd.d/* /root/.ciss/dlb/backup/update-motd.d
@@ -24,8 +23,7 @@ EOF
 
 chmod 0755 /etc/update-motd.d/10-uname
 
-printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' successful applied. \e[0m\n" "${0}"
-# sleep 1
+printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' successfully applied. \e[0m\n" "${0}"
 
 exit 0
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/9920_deleting_invalid_x509.chroot

@@ -1,18 +1,17 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
-# sleep 1
 
 declare -a search_dirs=("/etc/ssl/certs" "/usr/local/share/ca-certificates" "/usr/share/ca-certificates" "/etc/letsencrypt")
 declare backup_dir="/root/.ciss/dlb/backup/certificates"
@@ -27,17 +26,24 @@ declare -ax expired_certificates=()
 #   search_dirs
 #   dir
 # Arguments:
-#  None
+#   None
 #######################################
 create_backup() {
   printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 Backup Certificate: '%s' ... \e[0m\n" "${backup_dir}"
+
   mkdir -p "${backup_dir}"
   declare dir=""
+
   for dir in "${search_dirs[@]}"; do
-    if [ -d "${dir}" ] && compgen -G "${dir}"/* > /dev/null; then
+
+    if [[ -d "${dir}" ]] && compgen -G "${dir}"/* > /dev/null; then
+
       cp -r "${dir}"/* "${backup_dir}"
+
     fi
+
   done
+
   printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ Backup Certificate: '%s' done.\e[0m\n" "${backup_dir}"
 }
 
@@ -52,25 +58,32 @@ create_backup() {
 #   EXPIRED_CERTIFICATES
 #   SEARCH_DIRS
 # Arguments:
-#  None
+#   None
 #######################################
 check_certificates() {
   declare dir=""
   declare cert=""
   declare cert_date=""
   declare cert_date_seconds=""
+
   for dir in "${search_dirs[@]}"; do
+
+    # shellcheck disable=SC2312
     while IFS= read -r -d '' cert; do
+
       cert_date=$(openssl x509 -in "${cert}" -noout -enddate | sed 's/notAfter=//')
       cert_date_seconds=$(date -d "${cert_date}" +%s)
+
       if [[ ${cert_date_seconds} -lt ${current_date} ]]; then
+
         declare -g expired_certificates+=("${cert}")
+
       fi
+
     done < <(find "${dir}" -type f \( -name "*.crt" -o -name "*.pem" \) -print0)
+
   done
 }
-#   done < <(find "${dir}" -type f -name "*.crt" -o -name "*.pem" -print0)
-#   done < <(find "${DIR}" -type f \( -name "*.crt" -o -name "*.pem" \) -print0)
 
 #######################################
 # Find and clean all ca-certificates.crt files in SEARCH_DIRS.
@@ -80,13 +93,17 @@ check_certificates() {
 #   cert
 #   line
 # Arguments:
-#  None
+#   None
 #######################################
 delete_expired_from_all_bundles() {
   declare dir bundle
+
   for dir in "${search_dirs[@]}"; do
+
     bundle="${dir}/ca-certificates.crt"
+
     if [[ -f ${bundle} ]]; then
+
       printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 Checking Root-CA Bundle: '%s' ...\e[0m\n" "${bundle}"
       declare tmp_bundle="${bundle}.tmp"
       declare -a block=()
@@ -97,33 +114,57 @@ delete_expired_from_all_bundles() {
 
       declare line=""
       while IFS= read -r line; do
+
         block+=("${line}")
+
         if [[ ${line} == "-----END CERTIFICATE-----"   ]]; then
+
           cert=$(printf "%s\n" "${block[@]}")
           enddate=$(echo "${cert}" | openssl x509 -noout -enddate 2> /dev/null | sed 's/notAfter=//')
+
           if [[ -n ${enddate}   ]]; then
+
             declare cert_date_seconds=""
             cert_date_seconds=$(date -d "${enddate}" +%s)
+
             if [[ ${cert_date_seconds} -lt ${current_date} ]]; then
+
               expired=1
+
             else
+
               expired=0
+
             fi
+
           else
+
             expired=0
+
           fi
+
           if [[ ${expired} -eq 0 ]]; then
+
             printf "%s\n" "${block[@]}" >> "${tmp_bundle}"
+
           else
+
             printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅  Certificate deleted: '%s' (Expired: %s)\e[0m\n" "${bundle}" "${enddate}"
+
           fi
+
           block=()
+
         fi
+
       done < "${bundle}"
 
       mv -f "${tmp_bundle}" "${bundle}"
+
       printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ Checking Root-CA Bundle: '%s' done. \e[0m\n" "${bundle}"
+
     fi
+
   done
 }
 
@@ -141,30 +182,38 @@ else
   printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 Expired certificates found:\e[0m\n"
 
   for exp_cert in "${expired_certificates[@]}"; do
+
     printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ '%s'. \e[0m\n" "${exp_cert}"
+
   done
 
   for exp_cert in "${expired_certificates[@]}"; do
+
     rm -f "${exp_cert}"
+
     printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ Certificate deleted: '%s'.\e[0m\n" "${exp_cert}"
     basename=$(basename "${exp_cert}")
     mozilla_entry="mozilla/${basename%.pem}.crt"
     mozilla_entry="${mozilla_entry%.crt}.crt"
     declare ca_conf="/etc/ca-certificates.conf"
+
     if grep -Fxq "${mozilla_entry}" "${ca_conf}"; then
+
       sed -i "s|^${mozilla_entry}$|#${mozilla_entry}|" "${ca_conf}"
       printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ Entry in ca-certificates.conf deselected: '#%s'.\e[0m\n" "${mozilla_entry}"
+
     fi
+
   done
 
   printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ Updating the certificate cache ... \e[0m\n"
   update-ca-certificates --fresh
   printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ Updating the certificate cache done.\e[0m\n"
-  # sleep 1
+
 fi
 
 printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
-# sleep 1
+
 
 exit 0
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/9930_hardening_ssh.chroot

@@ -1,25 +1,26 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
-# sleep 1
 
 cd /etc/ssh || {
   printf "\e[91mm++++ ++++ ++++ ++++ ++++ ++++ ++ Could not find /etc/ssh \e[0m\n"
 }
 rm -rf ssh_host_*key*
 
+# shellcheck disable=SC2312
 ssh-keygen -o -N "" -t ed25519 -f /etc/ssh/ssh_host_ed25519_key -C "root@live-$(date -I)"
+# shellcheck disable=SC2312
 ssh-keygen -o -N "" -t rsa -b 8192 -f /etc/ssh/ssh_host_rsa_key -C "root@live-$(date -I)"
 
 awk '$5 >= 4000' /etc/ssh/moduli >| /etc/ssh/moduli.safe
@@ -44,7 +45,26 @@ ssh-keygen -r @ >| /root/sshfp
 # The chmod +x command ensures that the file is executed in every shell session.          #
 ###########################################################################################
 cat << 'EOF' >| /etc/profile.d/idle-users.sh
-declare -girx TMOUT=14400
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.live.builder
+# SPDX-Security-Contact: security@coresecret.eu
+
+case $- in
+  *i*)
+    TMOUT=14400
+    export TMOUT
+    readonly TMOUT
+  ;;
+esac
+
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh
 EOF
 
 chmod +x /etc/profile.d/idle-users.sh
@@ -58,7 +78,6 @@ EOF
 chmod 0644 /etc/systemd/system/ssh.service.d/override.conf
 
 printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
-# sleep 1
 
 exit 0
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/9935_hardening_ssh.chroot.tmpl

@@ -0,0 +1,93 @@
+#!/bin/bash
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.live.builder
+# SPDX-Security-Contact: security@coresecret.eu
+set -Ceuo pipefail
+
+printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
+
+cd /etc/ssh || {
+  printf "\e[91mm++++ ++++ ++++ ++++ ++++ ++++ ++ Could not find /etc/ssh \e[0m\n"
+}
+
+cat << 'EOF' >| ssh_host_ed25519_key
+{{ secrets.CISS_DLB_SSH_HOST_ED25519_KEY }}
+EOF
+
+cat << 'EOF' >| ssh_host_ed25519_key.pub
+{{ secrets.CISS_DLB_SSH_HOST_ED25519_KEY_PUB }}
+EOF
+
+cat << 'EOF' >| ssh_host_rsa_key
+{{ secrets.CISS_DLB_SSH_HOST_RSA_KEY }}
+EOF
+
+cat << 'EOF' >| ssh_host_rsa_key.pub
+{{ secrets.CISS_DLB_SSH_HOST_RSA_KEY_PUB }}
+EOF
+
+awk '$5 >= 4000' /etc/ssh/moduli >| /etc/ssh/moduli.safe
+rm -rf /etc/ssh/moduli
+mv /etc/ssh/moduli.safe /etc/ssh/moduli
+
+chmod 0600 /etc/ssh/ssh_host_*_key
+chown root:root /etc/ssh/ssh_host_*_key
+chmod 0644 /etc/ssh/ssh_host_*_key.pub
+chown root:root /etc/ssh/ssh_host_*_key.pub
+
+chmod 600 /etc/ssh/sshd_config /etc/ssh/ssh_config
+
+touch /root/sshfp
+ssh-keygen -r @ >| /root/sshfp
+
+###########################################################################################
+# Remarks: The file /etc/profile.d/idle-users.sh is created to set two read-only          #
+# environment variables: TMOUT and HISTFILE.                                              #
+# TMOUT=14400 ensures that users are automatically logged out after 4 hours of inactivity.#
+# readonly HISTFILE ensures that the command history cannot be changed.                   #
+# The chmod +x command ensures that the file is executed in every shell session.          #
+###########################################################################################
+cat << 'EOF' >| /etc/profile.d/idle-users.sh
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.live.builder
+# SPDX-Security-Contact: security@coresecret.eu
+
+case $- in
+  *i*)
+    TMOUT=14400
+    export TMOUT
+    readonly TMOUT
+  ;;
+esac
+
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh
+EOF
+
+chmod +x /etc/profile.d/idle-users.sh
+
+mkdir -p /etc/systemd/system/ssh.service.d
+cat << 'EOF' >| /etc/systemd/system/ssh.service.d/override.conf
+[Unit]
+After=ufw.service
+Requires=ufw.service
+EOF
+chmod 0644 /etc/systemd/system/ssh.service.d/override.conf
+
+printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
+
+exit 0
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/9940_hardening_memory.dump.chroot

@@ -1,26 +1,31 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
-# sleep 1
 
 cp -u /etc/security/limits.conf /root/.ciss/dlb/backup/limits.conf.bak
 chmod 0644 /root/.ciss/dlb/backup/limits.conf.bak
-sed -i "/#*               soft    core            0/ i\*               soft    core            0" /etc/security/limits.conf
-sed -i "/#root            hard    core            100000/ i\*               hard    core            0" /etc/security/limits.conf
+
+grep -Eq '^[[:space:]]*\*[[:space:]]+soft[[:space:]]+core[[:space:]]+0[[:space:]]*$' /etc/security/limits.conf \
+  || sed -i -E '/^[[:space:]]*#?[[:space:]]*soft[[:space:]]+core[[:space:]]+0[[:space:]]*$/ i\*               soft    core            0' /etc/security/limits.conf
+
+grep -Eq '^[[:space:]]*\*[[:space:]]+hard[[:space:]]+core[[:space:]]+0[[:space:]]*$' /etc/security/limits.conf \
+  || sed -i -E '/^[[:space:]]*#?[[:space:]]*root[[:space:]]+hard[[:space:]]+core[[:space:]]+100000[[:space:]]*$/ i\*               hard    core            0' /etc/security/limits.conf
 
 if [[ ! -d /etc/systemd/coredump.conf.d ]]; then
+
   mkdir -p /etc/systemd/coredump.conf.d
+
 fi
 
 touch /etc/systemd/coredump.conf.d/disable.conf
@@ -31,7 +36,6 @@ Storage=none
 EOF
 
 printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
-# sleep 1
 
 exit 0
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/9950_fail2ban_hardening.chroot

@@ -1,18 +1,17 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
-# sleep 1
 
 cd /root
 
@@ -30,11 +29,11 @@ cat << 'EOF' >| /etc/fail2ban/jail.d/centurion-default.conf
 # SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <cendev@coresecret.eu>
 # SPDX-ExternalRef: GIT https://cendev.eu/marc.weidner/CISS.2025.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <cendev@coresecret.eu>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <cendev@coresecret.eu>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
-# SPDX-LicenseComment: This file is part of the CISS.2025.hardened.installer framework.
-# SPDX-PackageName: CISS.2025.debian.live.builder
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
 [DEFAULT]
@@ -46,7 +45,7 @@ findtime  = 24h
 bantime   = 24h
 
 ### SSH Handling: Foreign IP (not in /etc/hosts.allow): refused to connect: immediate ban [sshd-refused]
-###               Jump host mistyped 1–3 times: no ban, only after four attempts          [sshd]
+###               Jump host mistyped 1-3 times: no ban, only after four attempts          [sshd]
 
 [sshd]
 enabled   = true
@@ -142,7 +141,6 @@ touch /var/log/fail2ban/fail2ban.log
 chmod 640 /var/log/fail2ban/fail2ban.log
 
 printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
-# sleep 1
 
 exit 0
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/9960_disable_services.chroot

@@ -1,18 +1,17 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
-# sleep 1
 
 ###########################################################################################
 # Remarks: Turn off Energy saving mode and ctrl-alt-del                                   #
@@ -25,7 +24,6 @@ done
 unset target
 
 printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
-# sleep 1
 
 exit 0
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/9970_remove_exim.chroot

@@ -1,32 +1,28 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
-# sleep 1
 
 cd /etc
 
-apt-get purge exim4 -y
-apt-get purge exim4-base -y
-apt-get purge exim4-config -y
-
+apt-get purge exim4 exim4-base exim4-config  -y
 apt-get autoremove -y
 apt-get autoclean -y
 apt-get autopurge -y
 
 apt-mark hold exim4 exim4-daemon-light exim4-base exim4-config
 
-apt-get update -y
+apt-get update
 apt-get upgrade -y
 
 if [[ -d /etc/exim4 ]]; then
@@ -34,7 +30,6 @@ if [[ -d /etc/exim4 ]]; then
 fi
 
 printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
-# sleep 1
 
 exit 0
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/9980_usb_guard.chroot

@@ -1,45 +1,45 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
-# sleep 1
 
+export DEBIAN_FRONTEND="noninteractive"
 apt-get install -y usbguard
 
-# sleep 1
-
-# Preparing USBGuard: see https://www.privacy-handbuch.de/handbuch_91a.htm
+### Preparing USBGuard: see https://www.privacy-handbuch.de/handbuch_91a.htm
 touch /tmp/rules.conf
 usbguard generate-policy >> /tmp/rules.conf
 
 if [[ -f /etc/usbguard/rules.conf && -s /etc/usbguard/rules.conf ]]; then
+
   mv /etc/usbguard/rules.conf /root/.ciss/dlb/backup/usbguard_rules.conf.bak
   cp -a /tmp/rules.conf /etc/usbguard/rules.conf
   chmod 0600 /etc/usbguard/rules.conf
+
 else
+
   rm -f /etc/usbguard/rules.conf
   cp -a /tmp/rules.conf /etc/usbguard/rules.conf
   chmod 0600 /etc/usbguard/rules.conf
+
 fi
 
 cp -a /etc/usbguard/usbguard-daemon.conf /root/.ciss/dlb/backup/usbguard-daemon.conf.bak
-sed -i "s/PresentDevicePolicy=apply-policy/PresentDevicePolicy=allow/" /etc/usbguard/usbguard-daemon.conf
-# sleep 1
+#sed -i "s/PresentDevicePolicy=apply-policy/PresentDevicePolicy=allow/" /etc/usbguard/usbguard-daemon.conf
 
 rm -f /tmp/rules.conf
 
 printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
-# sleep 1
 
 exit 0
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/9985_clamav.chroot

@@ -1,18 +1,17 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
-# sleep 1
 
 mkdir -p /etc/systemd/system/clamav-daemon.service.d
 cat << 'EOF' >| /etc/systemd/system/clamav-daemon.service.d/override.conf
@@ -32,8 +31,8 @@ ReadOnlyPaths=/
 ReadWritePaths=/var/lib/clamav /var/log/clamav /var/run/clamav /run/clamav
 
 MemoryDenyWriteExecute=yes
-MemoryLimit=512M
-CPUShares=512
+#MemoryLimit=4096M
+#CPUShares=512
 
 RestrictAddressFamilies=AF_INET AF_INET6
 RestrictNamespaces=yes
@@ -58,8 +57,8 @@ ReadOnlyPaths=/
 ReadWritePaths=/var/lib/clamav /var/log/clamav /var/run/clamav
 
 MemoryDenyWriteExecute=yes
-MemoryLimit=512M
-CPUShares=512
+#MemoryLimit=4096M
+#CPUShares=512
 
 RestrictAddressFamilies=AF_INET AF_INET6
 RestrictNamespaces=yes
@@ -71,7 +70,6 @@ EOF
 chmod 0644 /etc/systemd/system/clamav-freshclam.service.d/override.conf
 
 printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
-# sleep 1
 
 exit 0
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/9990_final_purge.chroot

@@ -1,47 +1,52 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
-# sleep 1
 
-apt-get update -y
+export DEBIAN_FRONTEND="noninteractive"
 
-apt-get purge -y exim4 exim4-daemon-light exim4-base exim4-config \
-qemu-guest-agent rmail sendmail-base sendmail-bin sendmail-cf sensible-mda sendmail-doc
+apt-get update -qq
 
-apt-mark hold exim4 exim4-daemon-light exim4-base exim4-config \
-qemu-guest-agent rmail sendmail-base sendmail-bin sendmail-cf sensible-mda sendmail-doc
+apt-get purge -y exim4 exim4-daemon-light exim4-base exim4-config qemu-guest-agent rmail
 
-dpkg --get-selections | grep deinstall >> /tmp/deinstall.log || true
+apt-mark hold exim4 exim4-daemon-light exim4-base exim4-config qemu-guest-agent rmail
+
+dpkg --get-selections | grep deinstall >| /tmp/deinstall.log || true
 
 if [[ -s /tmp/deinstall.log ]]; then
+
   printf "\n"
   printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 Packages to purge ... \e[0m\n"
   sed -i 's!deinstall!!' /tmp/deinstall.log
+
   while IFS= read -r line; do
+
     declare trimmed_string
-    trimmed_string=$(echo "$line" | awk '{$1=$1};1')
+    trimmed_string=$(echo "${line}" | awk '{$1=$1};1')
     echo "y" | apt-get purge "${trimmed_string}"
     printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ Package '%s' purged. \e[0m\n" "${trimmed_string}"
-    # sleep 1
+
   done < /tmp/deinstall.log
+
   printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ Packages to purge done. \e[0m\n"
+
 else
+
   printf "\n"
   printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ No Packages to purge, proceeding with clean up. \e[0m\n"
+
 fi
 
-apt-get update -y
 apt-get upgrade -y
 
 rm -f /tmp/deinstall.log
@@ -52,8 +57,7 @@ apt-get autopurge -y
 
 updatedb
 
-printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' successful applied. \e[0m\n" "${0}"
-# sleep 1
+printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' successfully applied. \e[0m\n" "${0}"
 
 exit 0
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/9991_file_permissions.chroot

@@ -1,18 +1,17 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
-# sleep 1
 
 chmod 0644 /etc/banner
 chmod 0644 /etc/issue
@@ -39,6 +38,7 @@ EOF
 
 cp -a /etc/login.defs /root/.ciss/dlb/backup/login.defs.bak
 
+sed -ri 's/^(#?LOGIN_TIMEOUT)[[:space:]]+[0-9]+/\1 180/' /etc/login.defs
 sed -i 's/UMASK		022/UMASK		077/' /etc/login.defs
 sed -i 's/PASS_MAX_DAYS	99999/PASS_MAX_DAYS	16384/' /etc/login.defs
 sed -i 's/PASS_MIN_DAYS	0/PASS_MIN_DAYS	1/' /etc/login.defs
@@ -54,8 +54,8 @@ fi
 
 if [[ -f /etc/cron.allow ]]; then
   cp -u /etc/cron.allow /root/.backup/cron.allow.bak
-  chmod 644 /root/.backup/cron.allow.bak
-  chmod 600 /etc/cron.allow
+  chmod 0644 /root/.backup/cron.allow.bak
+  chmod 0600 /etc/cron.allow
   cat << EOF >| /etc/cron.allow
 root
 EOF
@@ -98,8 +98,18 @@ for bin in as gcc g++ cc clang; do
 done
 unset bin target
 
-printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' successful applied. \e[0m\n" "${0}"
-# sleep 1
+###    Directories: 0700
+find /root -type d -exec chmod 0700 {} +
+###    Executable files: 0700 (any x-bit set)
+find /root -type f -perm /111 -exec chmod 0700 {} +
+###    Non-executable files: 0600
+find /root -type f ! -perm /111 -exec chmod 0600 {} +
+###    Ownership: UID:GID (do not dereference symlinks; stay on this filesystem)
+find /root -xdev -exec chown -h root:root {} +
+
+rm -f /etc/tmpfiles.d/legacy.conf
+
+printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' successfully applied. \e[0m\n" "${0}"
 
 exit 0
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/9992_password_expiration.chroot

@@ -1,42 +1,46 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
-# SPDX-LicenseComment: This file is part of the CISS.hardened.installer framework.
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
-# sleep 1
 
 if ! command -v chage &>/dev/null; then
+
   printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ Info: 'chage' NOT found. Exiting hook ... \e[0m\n"
   printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
-  # sleep 1
+
   exit 0
+
 fi
 
 declare -i max_days=16384
+# shellcheck disable=SC2312
 mapfile -t users_to_update < <(
   awk -F: '$2 !~ /^[!*]/ { print $1 }' /etc/shadow
 )
 
 if [[ ${#users_to_update[@]} -eq 0 ]]; then
+
   printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ No enabled-login accounts found in /etc/shadow. Exiting hook ... \e[0m\n"
   printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
-  # sleep 1
+
   exit 0
+
 fi
 
 declare user
 for user in "${users_to_update[@]}"; do
   printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ Setting max password age for user '%s' to '%s' days. \e[0m\n" "${user}" "${max_days}"
-  chage --maxdays "$max_days" "$user"
+  chage --maxdays "${max_days}" "${user}"
 done
 
 unset max_days user users_to_update
@@ -46,7 +50,6 @@ awk -F: '$2 !~ /^\$[0-9]/ && length($2)==13 { print $1,$2 }' /etc/shadow
 printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ All applicable accounts have been updated. \e[0m\n"
 
 printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
-# sleep 1
 
 exit 0
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/9993_aide.chroot

@@ -1,32 +1,35 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
-# SPDX-LicenseComment: This file is part of the CISS.hardened.installer framework.
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
-# sleep 1
 
-apt-get install -y aide
+export DEBIAN_FRONTEND="noninteractive"
+apt-get install -y aide > /dev/null 2>&1
 
 cp -u /etc/aide/aide.conf /root/.ciss/dlb/backup/aide.conf.bak
 sed -i "s/Checksums = H/Checksums = sha512/" /etc/aide/aide.conf
 
-if aideinit; then
+if aideinit > /dev/null 2>&1; then
+
   printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ 'aideinit' successful. \e[0m\n"
+
 else
+
   printf "\e[91m++++ ++++ ++++ ++++ ++++ ++++ ++ ❌ 'aideinit' NOT successful. \e[0m\n" >&2
+
 fi
 
 printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
-# sleep 1
 
 exit 0
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/9994_password_policy.chroot

@@ -1,40 +1,42 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
-# SPDX-LicenseComment: This file is part of the CISS.hardened.installer framework.
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-### NIST recommends at least eight characters but advises longer passphrases (e.g., 12–64) for increased security.
-### NIST SP 800–63B, https://pages.nist.gov/800-63-3/sp800-63b.html
+### NIST recommends at least eight characters but advises longer passphrases (e.g., 12-64) for increased security.
+### NIST SP 800-63B, https://pages.nist.gov/800-63-3/sp800-63b.html
 
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
-# sleep 1
+
+# shellcheck disable=SC2155
+declare -r VAR_DATE="$(date +%F)"
 
 cp -a /etc/security/pwquality.conf /root/.ciss/dlb/backup/pwquality.conf.bak
 chmod 0644 /root/.ciss/dlb/backup/pwquality.conf.bak
 
-cat << 'EOF' >| /etc/security/pwquality.conf
+cat << EOF >| /etc/security/pwquality.conf
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: ${VAR_DATE}; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
-# SPDX-LicenseComment: This file is part of the CISS.hardened.installer framework.
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
 ### Current recommendations for '/etc/security/pwquality.conf' based on common best practices,
-### including NIST SP 800–63B, https://pages.nist.gov/800-63-3/sp800-63b.html
+### including NIST SP 800-63B, https://pages.nist.gov/800-63-3/sp800-63b.html
 ### and weighing usability against security.
 
 ### Configuration for systemwide password quality limits
@@ -46,16 +48,16 @@ difok = 4
 
 ### Length over complexity: Studies show that longer passphrases are significantly more
 ### resistant to brute-force and dictionary attacks. NIST recommends at least eight characters
-### but advises longer passphrases (e.g., 12–64) for increased security. Twenty characters strike a
+### but advises longer passphrases (e.g., 12-64) for increased security. Twenty characters strike a
 ### good balance between security and user convenience.
 ### Minimum acceptable size for the new password (plus one if
 ### credits are not disabled, which is the default). (See pam_cracklib manual.)
 ### Cannot be set to a lower value than 6.
-minlen = 20
+minlen = 40
 
 ### dcredit = 0, ucredit = 0, lcredit = 0, ocredit = 0, minclass = 0
-### NIST SP 800–63B advises against rigid complexity rules (numbers, symbols, uppercase)
-### because they can lead users to adopt predictable patterns (e.g., “Pa$$word!”).
+### NIST SP 800-63B advises against rigid complexity rules (numbers, symbols, uppercase)
+### because they can lead users to adopt predictable patterns (e.g., "Pa$$word!").
 ### Length and dictionary checks are more effective.
 
   ### The maximum credit for having digits in the new password. If less than 0
@@ -83,12 +85,12 @@ minlen = 20
 
 ### The maximum number of allowed consecutive same characters in the new password.
 ### The check is disabled if the value is 0.
-maxrepeat = 2
+maxrepeat = 3
 
 ### The maximum number of allowed consecutive characters of the same class in the
 ### new password.
 ### The check is disabled if the value is 0.
-maxclassrepeat = 4
+maxclassrepeat = 0
 
 ### Whether to check for the words from the passwd entry GECOS string of the user.
 ### The check is enabled if the value is not 0.
@@ -129,7 +131,6 @@ local_users_only
 EOF
 
 printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
-# sleep 1
 
 exit 0
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/9995_sysstat.chroot

@@ -1,23 +1,21 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
-# SPDX-LicenseComment: This file is part of the CISS.hardened.installer framework.
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
-# sleep 1
 
 sed -i 's#^\(ENABLED=\).*#\1"true"#' /etc/default/sysstat
 
 printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
-# sleep 1
 
 exit 0
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/9996_auditd.chroot

@@ -1,25 +1,32 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
-# SPDX-LicenseComment: This file is part of the CISS.hardened.installer framework.
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
 ### https://github.com/linux-audit/audit-userspace/tree/master/rules
 
-set -C -e -u -o pipefail
+set -Ceuo pipefail
+
+#######################################
+# Simple error terminal logger.
+# Arguments:
+#   None
+#######################################
+log() { printf '[auditd-build] %s\n' "${*}" >&2; }
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
-# sleep 1
 
 cd /root
 
-apt-get install auditd -y
+export DEBIAN_FRONTEND="noninteractive"
+apt-get install -y auditd
 
 cp -u /etc/audit/audit.rules /root/.ciss/dlb/backup/audit.rules.bak
 cp -u /etc/audit/auditd.conf /root/.ciss/dlb/backup/auditd.conf.bak
@@ -50,13 +57,18 @@ EOF
 ############################################################### /etc/audit/rules.d/20-dont-audit.rules
 cat << EOF >| /etc/audit/rules.d/20-dont-audit.rules
 ## This is for don't audit rules. We put these early because audit
-### is a first match wins system. Uncomment the rules you want.
+## is a first match wins system. Uncomment the rules you want.
 
 ## Cron jobs fill the logs with stuff we normally don't want
--a never,user -F subj_type=crond_t
+-a never,user
 
 ## This prevents chrony from overwhelming the logs
--a never,exit -F arch=x86_64 -S adjtimex -F auid=unset -F uid=chrony -F subj_type=chronyd_t
+-a never,exit -F arch=b64 -S adjtimex -F exe=/usr/sbin/chronyd
+-a never,exit -F arch=b32 -S adjtimex -F exe=/usr/sbin/chronyd
+
+## Human-attributable time changes
+-a always,exit -F arch=b64 -S adjtimex -S settimeofday -S clock_settime -F auid>=1000 -F auid!=4294967295 -k time-change
+-a always,exit -F arch=b32 -S adjtimex -S settimeofday -S clock_settime -F auid>=1000 -F auid!=4294967295 -k time-change
 
 ### This is not very interesting and wastes a lot of space if
 ### the server is public facing
@@ -75,8 +87,8 @@ EOF
 ############################################################### /etc/audit/rules.d/22-ignore-chrony.rules
 cat << EOF >| /etc/audit/rules.d/22-ignore-chrony.rules
 ## This rule suppresses the time-change event when chrony does time updates
--a never,exit -F arch=b64 -S adjtimex -F auid=unset -F uid=chrony -F subj_type=chronyd_t
--a never,exit -F arch=b32 -S adjtimex -F auid=unset -F uid=chrony -F subj_type=chronyd_t
+-a never,exit -F arch=b64 -S adjtimex -F auid=unset -F uid=_chrony
+-a never,exit -F arch=b32 -S adjtimex -F auid=unset -F uid=_chrony
 EOF
 
 ############################################################### /etc/audit/rules.d/30-ospp-v42-1-create-failed.rules
@@ -325,8 +337,65 @@ cat << EOF >| /etc/audit/rules.d/99-finalize.rules
 -e 2
 EOF
 
+shopt -s nullglob
+rules=(/etc/audit/rules.d/*.rules)
+if (( ${#rules[@]} == 0 )); then
+  log "ERROR: /etc/audit/rules.d is empty. Seed rules before this hook."
+  exit 127
+fi
+
+if ! /sbin/augenrules --check >/dev/null 2>&1; then
+  log "ERROR: augenrules --check failed. Fix the /etc/audit/rules.d/*.rules first."
+  exit 128
+fi
+
+# shellcheck disable=2155
+declare tmp="$(mktemp)"
+printf '%s\0' "${rules[@]}" \
+  | xargs -0 -I{} basename "{}" \
+  | sort -V \
+  | while read -r fname; do
+    f="/etc/audit/rules.d/${fname}"
+    ### Normalize CRLF and strip UTF-8 BOM.
+    sed -e 's/\r$//' -e '1s/^\xEF\xBB\xBF//' "${f}" >> "${tmp}"
+    printf '\n' >> "${tmp}"
+  done
+
+# shellcheck disable=2155
+declare tmp_stripped="$(mktemp)"
+sed -e '/^[[:space:]]*#/d' -e '/^[[:space:]]*$/d' "${tmp}" >| "${tmp_stripped}"
+sed -E 's/[[:space:]]+#.*$//' -i "${tmp_stripped}"
+
+install -m 0600 -o root -g root "${tmp_stripped}" /etc/audit/audit.rules
+rm -f "${tmp}" "${tmp_stripped}"
+
+if ! grep -Eq '(^-a|^-w|^-e[[:space:]]+1|^-e[[:space:]]+2)' /etc/audit/audit.rules; then
+  log "WARN: /etc/audit/audit.rules contains no -a/-w rules or '-e 1/2'; is this intended?"
+fi
+
+log "Done. /etc/audit/audit.rules generated at build-time (no kernel load)."
+
+mkdir -p /etc/systemd/system/audit-rules.service.d
+
+cat << EOF >| /etc/systemd/system/audit-rules.service.d/10-ciss.conf
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.live.builder
+# SPDX-Security-Contact: security@coresecret.eu
+
+[Service]
+ExecStart=
+ExecStart=/usr/sbin/augenrules --load
+
+EOF
+
 printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
-# sleep 1
 
 exit 0
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/9997_debsums.chroot

@@ -1,36 +1,39 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
-# sleep 1
 
 cd /root
 
-apt-get install --no-install-recommends debsums -y
+export DEBIAN_FRONTEND="noninteractive"
+apt-get install -y --no-install-recommends debsums
 
 cp -a /etc/default/debsums /root/.ciss/dlb/backup/debsums.bak
 chmod 0644 /root/.ciss/dlb/backup/debsums.bak
 sed -i "s/CRON_CHECK=never/CRON_CHECK=monthly/" /etc/default/debsums
 
-if debsums -g; then
+if debsums -g > /dev/null 2>&1; then
+
   printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ 'debsums -g' successful. \e[0m\n"
+
 else
+
   # Omit false negative error output to stdout and stderr, as no problematic errors occur on startup.
   printf "\e[91m++++ ++++ ++++ ++++ ++++ ++++ ++ ❌ 'debsums -g' NOT successful. \e[0m\n"  > /dev/null 2>&1
+
 fi
 
 printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
-# sleep 1
 
 exit 0
-# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/9998_sources_list_bookworm.chroot

@@ -1,18 +1,20 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
-# SPDX-LicenseComment: This file is part of the CISS.hardened.installer framework.
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
-# sleep 1
+
+# shellcheck disable=SC2155
+declare -r VAR_DATE="$(date +%F)"
 
 cd /root
 
@@ -22,14 +24,14 @@ fi
 
 cat << 'EOF' >| /etc/apt/sources.list
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <cendev@coresecret.eu>
+# SPDX-CreationInfo: ${VAR_DATE}; WEIDNER, Marc S.; <cendev@coresecret.eu>
 # SPDX-ExternalRef: GIT https://cendev.eu/marc.weidner/CISS.2025.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <cendev@coresecret.eu>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <cendev@coresecret.eu>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
-# SPDX-LicenseComment: This file is part of the CISS.2025.hardened.installer framework.
-# SPDX-PackageName: CISS.2025.debian.live.builder
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 #-----------------------------------------------------------------------------------------#
 #                                  OFFICIAL DEBIAN REPOS
@@ -56,4 +58,4 @@ printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e
 # sleep 1
 
 exit 0
-# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/9998_sources_list_trixie.chroot

@@ -0,0 +1,127 @@
+#!/bin/bash
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-08-12; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.live.builder
+# SPDX-Security-Contact: security@coresecret.eu
+set -Ceuo pipefail
+
+printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
+
+# shellcheck disable=SC2155
+declare -r VAR_DATE="$(date +%F)"
+
+cd /root
+
+mkdir -p /etc/apt/apt.conf.d
+
+cat << EOF >| /etc/apt/apt.conf.d/00-deb822-prefer
+// Make APT ignore the classic /etc/apt/sources.list entirely.
+Dir::Etc {
+  sourcelist  "/dev/null";                // classic list is ignored
+  sourceparts "/etc/apt/sources.list.d";  // deb822 *.sources remain authoritative
+}
+EOF
+
+if [[ ! -f /etc/apt/sources.list.d/trixie.sources ]]; then
+  cat << EOF >| /etc/apt/sources.list.d/trixie.sources
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: ${VAR_DATE}; WEIDNER, Marc S.; <cendev@coresecret.eu>
+# SPDX-ExternalRef: GIT https://cendev.eu/marc.weidner/CISS.2025.debian.live.builder.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <cendev@coresecret.eu>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.live.builder
+# SPDX-Security-Contact: security@coresecret.eu
+
+Types: deb deb-src
+URIs: https://deb.debian.org/debian/
+Suites: trixie
+Components: main contrib non-free non-free-firmware
+Signed-By: /usr/share/keyrings/debian-archive-keyring.gpg
+
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf
+EOF
+fi
+
+if [[ ! -f /etc/apt/sources.list.d/trixie-security.sources ]]; then
+  cat << EOF >| /etc/apt/sources.list.d/trixie-security.sources
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: ${VAR_DATE}; WEIDNER, Marc S.; <cendev@coresecret.eu>
+# SPDX-ExternalRef: GIT https://cendev.eu/marc.weidner/CISS.2025.debian.live.builder.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <cendev@coresecret.eu>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.live.builder
+# SPDX-Security-Contact: security@coresecret.eu
+
+Types: deb deb-src
+URIs: https://security.debian.org/debian-security/
+Suites: trixie-security
+Components: main contrib non-free non-free-firmware
+Signed-By: /usr/share/keyrings/debian-archive-keyring.gpg
+
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf
+EOF
+fi
+
+if [[ ! -f /etc/apt/sources.list.d/trixie-updates.sources ]]; then
+ cat << EOF >| /etc/apt/sources.list.d/trixie-updates.sources
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: ${VAR_DATE}; WEIDNER, Marc S.; <cendev@coresecret.eu>
+# SPDX-ExternalRef: GIT https://cendev.eu/marc.weidner/CISS.2025.debian.live.builder.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <cendev@coresecret.eu>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.live.builder
+# SPDX-Security-Contact: security@coresecret.eu
+
+Types: deb deb-src
+URIs: https://deb.debian.org/debian/
+Suites: trixie-updates
+Components: main contrib non-free non-free-firmware
+Signed-By: /usr/share/keyrings/debian-archive-keyring.gpg
+
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf
+EOF
+fi
+
+
+if [[ ! -f /etc/apt/sources.list.d/trixie-backports.sources ]]; then
+  cat << EOF >| /etc/apt/sources.list.d/trixie-backports.sources
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: ${VAR_DATE}; WEIDNER, Marc S.; <cendev@coresecret.eu>
+# SPDX-ExternalRef: GIT https://cendev.eu/marc.weidner/CISS.2025.debian.live.builder.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <cendev@coresecret.eu>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.live.builder
+# SPDX-Security-Contact: security@coresecret.eu
+
+Types: deb deb-src
+URIs: https://deb.debian.org/debian/
+Suites: trixie-backports
+Components: main contrib non-free non-free-firmware
+Signed-By: /usr/share/keyrings/debian-archive-keyring.gpg
+
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf
+EOF
+fi
+
+printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
+
+exit 0
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/9999_interfaces_update.chroot

@@ -1,28 +1,30 @@
 #!/bin/bash
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-set -C -e -u -o pipefail
+set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
-# sleep 1
+
+# shellcheck disable=SC2155
+declare -r VAR_DATE="$(date +%F)"
 
 mv /etc/network/interfaces /root/.ciss/dlb/backup/interfaces.chroot
 rm -f /etc/network/interfaces
 
-cat << 'EOF' >| /etc/network/interfaces
+cat << EOF >| /etc/network/interfaces
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: ${VAR_DATE}; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
@@ -32,6 +34,9 @@ cat << 'EOF' >| /etc/network/interfaces
 # This file describes the network interfaces available on your system
 # and how to activate them. For more information, see interfaces(5).
 
+EOF
+
+cat << 'EOF' >> /etc/network/interfaces
 ### The loopback network interface
 auto lo
 iface lo inet loopback
@@ -59,7 +64,6 @@ EOF
 chmod 0644 /etc/network/interfaces
 
 printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
-# sleep 1
 
 exit 0
-# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/includes.binary/boot/grub/config.cfg

@@ -2,10 +2,10 @@
 # SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
-# SPDX-LicenseComment: This file is part of the CISS.hardened.installer framework.
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 

config/includes.chroot/etc/apt/sources.list

@@ -0,0 +1,15 @@
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-08-12; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.live.builder
+# SPDX-Security-Contact: security@coresecret.eu
+
+# File: /etc/apt/sources.list
+# Intentionally empty, disable classic sources.list generation (deb822 in use).
+
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf

config/includes.chroot/etc/apt/sources.list.d/trixie-backports.sources

@@ -0,0 +1,18 @@
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-08-11; WEIDNER, Marc S.; <cendev@coresecret.eu>
+# SPDX-ExternalRef: GIT https://cendev.eu/marc.weidner/CISS.2025.debian.live.builder.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <cendev@coresecret.eu>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.live.builder
+# SPDX-Security-Contact: security@coresecret.eu
+
+Types: deb deb-src
+URIs: https://deb.debian.org/debian/
+Suites: trixie-backports
+Components: main contrib non-free non-free-firmware
+Signed-By: /usr/share/keyrings/debian-archive-keyring.gpg
+
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf

config/includes.chroot/etc/apt/sources.list.d/trixie-security.sources

@@ -0,0 +1,18 @@
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-08-11; WEIDNER, Marc S.; <cendev@coresecret.eu>
+# SPDX-ExternalRef: GIT https://cendev.eu/marc.weidner/CISS.2025.debian.live.builder.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <cendev@coresecret.eu>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.live.builder
+# SPDX-Security-Contact: security@coresecret.eu
+
+Types: deb deb-src
+URIs: https://security.debian.org/debian-security/
+Suites: trixie-security
+Components: main contrib non-free non-free-firmware
+Signed-By: /usr/share/keyrings/debian-archive-keyring.gpg
+
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf

config/includes.chroot/etc/apt/sources.list.d/trixie-updates.sources

@@ -0,0 +1,18 @@
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-08-11; WEIDNER, Marc S.; <cendev@coresecret.eu>
+# SPDX-ExternalRef: GIT https://cendev.eu/marc.weidner/CISS.2025.debian.live.builder.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <cendev@coresecret.eu>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.live.builder
+# SPDX-Security-Contact: security@coresecret.eu
+
+Types: deb deb-src
+URIs: https://deb.debian.org/debian/
+Suites: trixie-updates
+Components: main contrib non-free non-free-firmware
+Signed-By: /usr/share/keyrings/debian-archive-keyring.gpg
+
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf

config/includes.chroot/etc/apt/sources.list.d/trixie.sources

@@ -0,0 +1,18 @@
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-08-11; WEIDNER, Marc S.; <cendev@coresecret.eu>
+# SPDX-ExternalRef: GIT https://cendev.eu/marc.weidner/CISS.2025.debian.live.builder.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <cendev@coresecret.eu>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.live.builder
+# SPDX-Security-Contact: security@coresecret.eu
+
+Types: deb deb-src
+URIs: https://deb.debian.org/debian/
+Suites: trixie
+Components: main contrib non-free non-free-firmware
+Signed-By: /usr/share/keyrings/debian-archive-keyring.gpg
+
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf

config/includes.chroot/etc/live/config.conf

@@ -2,12 +2,13 @@
 # SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
-LIVE_CONFIGS="username"
-USERNAME=root
+
+# LIVE_CONFIG_CMDLINE="${LIVE_CONFIG_CMDLINE} ADD PARAMETER HERE"
+
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/includes.chroot/etc/login.defs

@@ -0,0 +1,209 @@
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-10-11; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.live.builder
+# SPDX-Security-Contact: security@coresecret.eu
+
+#
+# /etc/login.defs - Configuration control definitions for the shadow package.
+#
+
+# REQUIRED for useradd/userdel/usermod
+#   Directory where mailboxes reside, _or_ name of file, relative to the
+#   home directory.  If you _do_ define MAIL_DIR and MAIL_FILE,
+#   MAIL_DIR takes precedence.
+#
+#   Essentially:
+#      - MAIL_DIR defines the location of users mail spool files
+#        (for mbox use) by appending the username to MAIL_DIR as defined
+#        below.
+#      - MAIL_FILE defines the location of the users mail spool files as the
+#        fully-qualified filename obtained by prepending the user home
+#        directory before $MAIL_FILE
+#
+# NOTE: This is no more used for setting up users MAIL environment variable
+#       which is, starting from shadow 4.0.12-1 in Debian, entirely the
+#       job of the pam_mail PAM modules
+#       See default PAM configuration files provided for
+#       login, su, etc.
+#
+# This is a temporary situation: setting these variables will soon
+# move to /etc/default/useradd and the variables will then be
+# no more supported
+MAIL_DIR        /var/mail
+#MAIL_FILE      .mail
+
+#
+# Enable display of unknown usernames when login(1) failures are recorded.
+#
+# WARNING: Unknown usernames may become world readable.
+# See #290803 and #298773 for details about how this could become a security
+# concern
+LOG_UNKFAIL_ENAB	no
+
+#
+# Enable logging of successful logins
+#
+LOG_OK_LOGINS		yes
+
+#
+# If defined, file which maps tty line to TERM environment parameter.
+# Each line of the file is in a format similar to "vt100  tty01".
+#
+#TTYTYPE_FILE	/etc/ttytype
+
+#
+# If defined, file which inhibits all the usual chatter during the login
+# sequence.  If a full pathname, then hushed mode will be enabled if the
+# user's name or shell are found in the file.  If not a full pathname, then
+# hushed mode will be enabled if the file exists in the user's home directory.
+#
+HUSHLOGIN_FILE	.hushlogin
+#HUSHLOGIN_FILE	/etc/hushlogins
+
+#
+# *REQUIRED*  The default PATH settings, for superuser and normal users.
+#
+# (they are minimal, add the rest in the shell startup files)
+ENV_SUPATH	PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+ENV_PATH	PATH=/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games
+
+#
+# Terminal permissions for terminals after login(1).
+# These settings are ignored for remote and other logins.
+#
+#	TTYGROUP	Login tty will be assigned this group ownership.
+#	TTYPERM		Login tty will be set to this permission.
+#
+#TTYGROUP	tty
+TTYPERM		0600
+
+#
+# Login configuration initializations:
+#
+#	ERASECHAR	Terminal ERASE character ('\010' = backspace).
+#	KILLCHAR	Terminal KILL character ('\025' = CTRL/U).
+#
+# The ERASECHAR and KILLCHAR are used only on System V machines.
+#
+ERASECHAR	0177
+KILLCHAR	025
+
+# HOME_MODE is used by useradd(8) and newusers(8) to set the mode for new
+# home directories.
+HOME_MODE	0700
+
+#
+# Password aging controls:
+#
+#	PASS_MAX_DAYS	Maximum number of days a password may be used.
+#	PASS_MIN_DAYS	Minimum number of days allowed between password changes.
+#	PASS_WARN_AGE	Number of days warning given before a password expires.
+#
+PASS_MAX_DAYS	16384
+PASS_MIN_DAYS	1
+PASS_WARN_AGE	128
+
+#
+# Min/max values for automatic uid selection in useradd(8)
+#
+UID_MIN			 1000
+UID_MAX			60000
+# System accounts
+#SYS_UID_MIN		  101
+#SYS_UID_MAX		  999
+# Extra per user uids
+SUB_UID_MIN		   100000
+SUB_UID_MAX		600100000
+SUB_UID_COUNT		    65536
+
+#
+# Min/max values for automatic gid selection in groupadd(8)
+#
+GID_MIN			 1000
+GID_MAX			60000
+# System accounts
+#SYS_GID_MIN		  101
+#SYS_GID_MAX		  999
+# Extra per user group ids
+SUB_GID_MIN		   100000
+SUB_GID_MAX		600100000
+SUB_GID_COUNT		    65536
+
+#
+# Max number of login(1) retries if password is bad
+# This will most likely be overriden by PAM, since the default pam_unix module
+# has it's own built in of 3 retries. However, this is a safe fallback in case
+# you are using an authentication module that does not enforce PAM_MAXTRIES.
+#
+LOGIN_RETRIES		5
+
+#
+# Max time in seconds for login(1)
+#
+LOGIN_TIMEOUT		180
+
+#
+# Which fields may be changed by regular users using chfn(1) - use
+# any combination of letters "frwh" (full name, room number, work
+# phone, home phone).  If not defined, no changes are allowed.
+# For backward compatibility, "yes" = "rwh" and "no" = "frwh".
+#
+CHFN_RESTRICT		rwh
+
+#
+# If set to MD5, MD5-based algorithm will be used for encrypting password
+# If set to SHA256, SHA256-based algorithm will be used for encrypting password
+# If set to SHA512, SHA512-based algorithm will be used for encrypting password
+# If set to BCRYPT, BCRYPT-based algorithm will be used for encrypting password
+# If set to YESCRYPT, YESCRYPT-based algorithm will be used for encrypting password
+# If set to DES, DES-based algorithm will be used for encrypting password (default)
+# MD5 and DES should not be used for new hashes, see crypt(5) for recommendations.
+# Overrides the MD5_CRYPT_ENAB option
+#
+# Note: It is recommended to use a value consistent with
+# the PAM modules configuration.
+#
+ENCRYPT_METHOD YESCRYPT
+
+#
+# Should login be allowed if we can't cd to the home directory?
+# Default is no.
+#
+DEFAULT_HOME	yes
+
+#
+# The pwck(8) utility emits a warning for any system account with a home
+# directory that does not exist.  Some system accounts intentionally do
+# not have a home directory.  Such accounts may have this string as
+# their home directory in /etc/passwd to avoid a spurious warning.
+#
+NONEXISTENT	/nonexistent
+
+#
+# If defined, this command is run when removing a user.
+# It should remove any at/cron/print jobs etc. owned by
+# the user to be removed (passed as the first argument).
+#
+#USERDEL_CMD	/usr/sbin/userdel_local
+
+#
+# If set to yes, userdel(8) will remove the user's group if it contains no more
+# members, and useradd(8) will create by default a group with the name of the
+# user.
+#
+# Other former uses of this variable are not used in PAM environments, such as
+# Debian.
+#
+USERGROUPS_ENAB yes
+
+#
+# Added by CISS.debian.live.builder for redundance
+UMASK 077
+
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf

config/includes.chroot/etc/modprobe.d/30-cendev-hardening.conf

@@ -2,7 +2,7 @@
 # SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.

config/includes.chroot/etc/network/interfaces

@@ -2,7 +2,7 @@
 # SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.

config/includes.chroot/etc/ssh/ssh_known_hosts

@@ -0,0 +1,17 @@
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-10-10; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.live.builder
+# SPDX-Security-Contact: security@coresecret.eu
+
+# Version Master V8.13.142.2025.10.14
+
+[git.coresecret.dev]:42842 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGQA107AVmg1D/jnyXiqbPf38zQRl8s3c+PM1zbfpeQl
+[git.coresecret.dev]:42842 ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAACAQDYD9ysmMWZlejUnxu0qOzeWcIYezoFLbYdo6ffGUL5kqOBAYb+5CF4bJLUpA93XFYVF+TbrcMV1yJh6JaHFL0VU5CvgAzruCeedx0c4qUV6lWcJUGNk5K0yb9n2Wosdy6F/zTOxL9KXBt/TV+cscsen2Dahvx0ctMKgNbu+vvUcWxHf9lOkbYoF/uA/nW5CVXy5XUPVUDFUhEeKXL85+6gid5AEMfYT8aRl5YDGvo1iMBmBYOljN4S7MnRe14qbAZG0GDGvF22eHbSU2pILcFIjc2Lo/S5Ox/MJpbLAqpFlLPTKgr6F7yVwfNMSNwl05ysUOZfrQKSXzCU6+lfqKYCwemLALyG/n1ernpp7/8W/2RYoz3fd+TQyfhW++rx3yUHpYCkTv9A4LRYZYGSAWKMHSBEYq3EcATQUxQi0xpwmcR+u0uC9F9eta5Bim+sBZD6F2hgPJ5xgYT8LFm880g1YadAwBoD4TAkqSvl+jYW0VA2GH9CknKHJ36gc/X4eeUHDC1Hf/E8M5RBj4D6NuHfeVRik/ahHmoCqKQUW7VU/EBsWFsngDiLEHcV71iMtWiUddWOHwoAPHIzn6p9HTeLCxTwsPMG5UDGK/S9HUozqDXxexRtqbcFa7DWuzRvZ1bcZ2VQsaafuzKCkkc4NjC7h1wssel7q9aeYPFg+1vS6Q==
+
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf

config/includes.chroot/etc/ssh/sshd_config

@@ -1,15 +1,15 @@
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-10; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-### Version Master V8.03.127.2025.06.02
+# Version Master V8.13.142.2025.10.14
 
 ### https://www.ssh-audit.com/
 ### ssh -Q cipher | cipher-auth | compression | kex | kex-gss | key | key-cert | key-plain | key-sig | mac | protocol-version | sig
@@ -31,12 +31,12 @@ ListenAddress                ::
 Port MUST_BE_CHANGED
 AllowUsers                   root
 UseDNS                       no
-### Force a key exchange after transferring 1 GiB of data or 1 hour of session time,
-### whichever occurs first.
+### Force a key exchange after transferring 1 GiB of data or 1 hour of session time, whichever occurs first.
 RekeyLimit                   1G 1h
 
 HostKey                      /etc/ssh/ssh_host_ed25519_key
 HostKey                      /etc/ssh/ssh_host_rsa_key
+TrustedUserCAKeys            none
 
 PubkeyAuthentication         yes
 PermitRootLogin              prohibit-password
@@ -51,7 +51,7 @@ MaxSessions                  2
 MaxStartups                  08:64:16
 ### Restrict each individual source IP to only 4 unauthenticated connection slot
 ### in the concurrent MaxStartups pool, preventing one IP from monopolizing slots.
-PerSourceMaxStartups         4
+PerSourceMaxStartups         8
 ClientAliveInterval          300
 ClientAliveCountMax          2
 
@@ -65,12 +65,12 @@ GatewayPorts                 no
 ### A+ Rating 100/100
 RequiredRSASize              4096
 Ciphers                      aes256-gcm@openssh.com
-KexAlgorithms                sntrup761x25519-sha512@openssh.com,sntrup761x25519-sha512,gss-curve25519-sha256-
-HostKeyAlgorithms            sk-ssh-ed25519-cert-v01@openssh.com,ssh-ed25519-cert-v01@openssh.com,sk-ssh-ed25519@openssh.com,ssh-ed25519,rsa-sha2-512-cert-v01@openssh.com,rsa-sha2-512,rsa-sha2-256-cert-v01@openssh.com,rsa-sha2-256
+KexAlgorithms                mlkem768x25519-sha256,sntrup761x25519-sha512@openssh.com,sntrup761x25519-sha512
+HostKeyAlgorithms            ssh-ed25519-cert-v01@openssh.com,ssh-ed25519,rsa-sha2-512-cert-v01@openssh.com,rsa-sha2-512,rsa-sha2-256-cert-v01@openssh.com,rsa-sha2-256
 MACs                         hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com
-CASignatureAlgorithms        rsa-sha2-512,rsa-sha2-256,ssh-ed25519,sk-ssh-ed25519@openssh.com
+CASignatureAlgorithms        rsa-sha2-512,rsa-sha2-256,ssh-ed25519
 GSSAPIKexAlgorithms          gss-curve25519-sha256-,gss-group16-sha512-
-HostbasedAcceptedAlgorithms  sk-ssh-ed25519-cert-v01@openssh.com,ssh-ed25519-cert-v01@openssh.com,sk-ssh-ed25519@openssh.com,ssh-ed25519,rsa-sha2-512-cert-v01@openssh.com,rsa-sha2-512,rsa-sha2-256-cert-v01@openssh.com,rsa-sha2-256
+HostbasedAcceptedAlgorithms  ssh-ed25519-cert-v01@openssh.com,ssh-ed25519,rsa-sha2-512-cert-v01@openssh.com,rsa-sha2-512,rsa-sha2-256-cert-v01@openssh.com,rsa-sha2-256
 PubkeyAcceptedAlgorithms     sk-ssh-ed25519-cert-v01@openssh.com,ssh-ed25519-cert-v01@openssh.com,sk-ssh-ed25519@openssh.com,ssh-ed25519,rsa-sha2-512-cert-v01@openssh.com,rsa-sha2-512,rsa-sha2-256-cert-v01@openssh.com,rsa-sha2-256
 
 ### Change to yes to enable challenge-response passwords (beware issues with some PAM modules and threads)

config/includes.chroot/etc/sysctl.d/99_local.hardened

@@ -2,14 +2,14 @@
 # SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-### Version Master V8.03.127.2025.06.02
+# Version Master V8.13.142.2025.10.14
 
 ### https://docs.kernel.org/
 ### https://github.com/a13xp0p0v/kernel-hardening-checker/

config/includes.chroot/etc/systemd/system/getty@tty1.service.d/override.conf

@@ -2,7 +2,7 @@
 # SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.

config/includes.chroot/preseed/.ash/0_di_preseed_include_command.sh

@@ -3,7 +3,7 @@
 # SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.

config/includes.chroot/preseed/.ash/1_di_preseed_early_command.sh

@@ -3,7 +3,7 @@
 # SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.

config/includes.chroot/preseed/.ash/2_di_partman_early_command.sh

@@ -3,7 +3,7 @@
 # SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.

config/includes.chroot/preseed/.ash/3_di_preseed_late_command.sh

@@ -3,7 +3,7 @@
 # SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.

config/includes.chroot/preseed/.ash/di_scripting_flexibility.sh

@@ -3,7 +3,7 @@
 # SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.

config/includes.chroot/preseed/.ash/di_scripting_password.sh

@@ -3,7 +3,7 @@
 # SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
 # SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
-# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
 # SPDX-FileType: SOURCE
 # SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
 # SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
@@ -26,13 +26,13 @@ grep -o '[!-~]' /dev/urandom | tr -d '\n' | head -c64 >> "${TMP_PASSPHRASE_FILE}
 DEB_INSTALLER_CRYPT_INC_FILE=$(mktemp)
 readonly DEB_INSTALLER_CRYPT_INC_FILE
 
-# Read the first line (the passphrase) – POSIX-compliant
+# Read the first line (the passphrase) - POSIX-compliant
 # IFS= prevents leading/trailing spaces from being truncated,
 # -r ensures that backslashes are not interpreted.
 IFS= read -r passphrase < "${TMP_PASSPHRASE_FILE}"
 
 # A single printf call with exactly one redirect
-# – ShellCheck-compliant and valid in POSIX-sh
+# - ShellCheck-compliant and valid in POSIX-sh
 printf 'd-i partman-crypto/passphrase string %s\n' "${passphrase}" >> "$DEB_INSTALLER_CRYPT_INC_FILE"
 
 printf 'd-i partman-crypto/passphrase-again string %s\n' "${passphrase}" >> "$DEB_INSTALLER_CRYPT_INC_FILE"