DEPLOY BOT : 🔐 Auto-Generate PRIVATE LIVE ISO TRIXIE 1 [skip ci]

X-CI-Metadata: master@6983534 at 2025-10-28T19:43:03Z on f5d9be774750

Generated at : 2025-10-28T19:43:03Z
Runner Host  : f5d9be774750
Workflow ID  : 🔐 Generating a Private Live ISO TRIXIE.
Git Commit   : 6983534 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")
+$(echo -e "\e[92mMaster V8.13.294.2025.10.28\e[0m")
+$(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

@@ -6,13 +6,12 @@
 # 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
 
 DEBIAN_FRONTEND=noninteractive \
   apt-get update && \
@@ -33,7 +32,6 @@ DEBIAN_FRONTEND=noninteractive \
         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/generate_PRIVATE_trixie_1.yaml

@@ -1,5 +1,5 @@
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# 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>
@@ -9,9 +9,13 @@
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-### Version Master V8.03.512.2025.06.06
+# Version Master V8.13.294.2025.10.28
 
-name: 🔐 Generating a Private Live ISO FLV 1.
+name: 🔐 Generating a Private Live ISO TRIXIE.
+
+defaults:
+  run:
+    shell: bash
 
 permissions:
   contents: write
@@ -21,164 +25,35 @@ on:
     branches:
       - master
     paths:
-      - '.gitea/trigger/t_generate_PRIVATE_iso_flavour_1.yaml'
+      - '.gitea/trigger/t_generate_PRIVATE_trixie_1.yaml'
 
 jobs:
-  generate-private-ciss-debian-live-iso:
-    name: 🔐 Generating a Private Live ISO FLV 1.
-    runs-on: ciss.debian.live.builder.iso.generator
+  generate-private-cdlb-trixie:
+    name: 🔐 Generating a Private Live ISO TRIXIE.
+    runs-on: cdlb.trixie
 
-    ### Run all steps inside Debian Bookworm
     container:
-      image: debian:bookworm
+      image: debian:trixie
 
     steps:
-      - name: 🛠️ Basic Image Setup and enable Bookworm Backports.
-        run: |
-          apt-get update -y
-          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 -y
-          apt-get upgrade -y
-
-      - name: 🛠️ Installing Build Tools.
+      - name: 🛠️ Basic Image Setup.
         shell: bash
         run: |
-          apt-get update -y
-          apt-get install -y \
-            autoconf \
-            automake \
-            build-essential \
-            cryptsetup \
+          export DEBIAN_FRONTEND=noninteractive
+          apt-get update -qq
+          apt-get upgrade -y
+          apt-get install -y --no-install-recommends \
+            apt-utils \
+            bash \
+            ca-certificates \
             curl \
-            debootstrap \
-            dosfstools \
-            efibootmgr \
-            gettext \
             git \
             gnupg \
-            haveged \
-            libbz2-dev \
-            zlib1g-dev \
-            liblzma-dev \
-            libtool \
-            live-build \
-            parted \
-            pkg-config \
-            ssh \
-            ssl-cert \
+            openssh-client \
+            openssl \
+            perl \
             sudo \
-            texinfo \
-            wget \
-            whois \
-
-      - name: 🛠️ Build GnuPG from the sources, as the Bookworm GPG does not understand key format 5.
-        shell: bash
-        run: |
-          urls=(
-            "https://gnupg.org/ftp/gcrypt/npth/npth-1.8.tar.bz2"
-            "https://gnupg.org/ftp/gcrypt/libgpg-error/libgpg-error-1.55.tar.bz2"
-            "https://gnupg.org/ftp/gcrypt/libgcrypt/libgcrypt-1.11.1.tar.bz2"
-            "https://gnupg.org/ftp/gcrypt/libksba/libksba-1.6.7.tar.bz2"
-            "https://gnupg.org/ftp/gcrypt/libassuan/libassuan-3.0.2.tar.bz2"
-            "https://gnupg.org/ftp/gcrypt/gnupg/gnupg-2.4.8.tar.bz2"
-          )
-
-          wget --https-only https://gnupg.org/signature_key.asc -O signature_key.asc > /dev/null 2>&1
-          gpg --batch --import signature_key.asc
-
-          for url in "${urls[@]}"; do
-            archive_name="${url##*/}"
-            pkg_name="${archive_name%.tar.bz2}"
-            echo "🔄 Processing ${pkg_name}"
-            if [[ ! -f "${archive_name}" ]]; then
-              echo "📥 Downloading: '${archive_name}'."
-              if wget --https-only "${url}" -O "${archive_name}" > /dev/null 2>&1 && wget --https-only "${url}.sig" -O "${archive_name}.sig" > /dev/null 2>&1; then
-                echo "✅ Download successful: '${archive_name}'."
-              else
-                echo "❌ Download NOT successful: '${archive_name}'."
-                exit 1
-              fi
-            else
-              echo "💡 Skipping download, package already exists: '${archive_name}'."
-            fi
-
-            if ! gpg --verify "${archive_name}.sig" "${archive_name}"; then echo "❌ Bad Signature: '${archive_name}'.";exit 1; fi
-
-            if [[ ! -d "${pkg_name}" ]]; then
-              echo "📂 Extracting: '${archive_name}'."
-              if tar -xjf "${archive_name}"; then
-                echo "✅ Extraction successful: '${archive_name}'."
-              else
-                echo "❌ Extraction not successful: '${archive_name}'."
-                exit 1
-              fi
-            else
-              echo "💡 Skipping directory, already exists: '${pkg_name}'."
-            fi
-
-            echo "🏗️ Build and install the package: '${pkg_name}'."
-            cd "${pkg_name}" || { echo "❌ Could not change to '${pkg_name}'."; exit 1; }
-            mkdir -p build
-            cd build || { echo "❌ Could not change to '/build'."; exit 1; }
-
-            sudo ../configure > /dev/null 2>&1  || { echo "❌ '../configure' NOT successful for '${pkg_name}'."; exit 1; }
-            make > /dev/null 2>&1 || { echo "❌ 'make' NOT successful for '${pkg_name}'."; exit 1; }
-            sudo make install > /dev/null 2>&1 || { echo "❌ 'make install' NOT successful for '${pkg_name}'."; exit 1; }
-
-            cd ../.. || { echo "❌ Could not change to '../..'."; exit 1; }
-
-            rm -f "${archive_name}" && rm -f "${archive_name}.sig" && echo "✅ Removed archive: '${pkg_name}'."
-            rm -fr "${pkg_name}" && echo "✅ Removed build artifacts: '${pkg_name}'."
-            echo "✅ Successful build and installation of '${pkg_name}'."
-            echo "-------------------------------------------------------------------------------------"
-
-          done
-
-          rm -f signature_key.asc
-
-          echo "✅ All packages were built and installed successfully."
-
-          mv_bin=(
-            "/usr/bin/gpg"
-            "/usr/bin/gpg-agent"
-            "/usr/bin/gpgconf"
-            "/usr/bin/gpg-connect-agent"
-            "/usr/bin/gpg-wks-client"
-            "/usr/bin/gpg-preset-passphrase"
-          )
-
-          for bin in "${mv_bin[@]}"; do
-            name="${bin##*/}"
-            if [[ -f "${bin}" && -f "/usr/local/bin/${name}" ]]; then
-              if mv "${bin}" "${bin}.debian-backup"; then
-                echo "✅ Moved successfully: '${bin}'."
-              else
-                echo "❌ Moved NOT successfully: '${bin}'."
-              fi
-            else
-              echo "💡 Does not exist as build binary: '${bin}'."
-            fi
-          done
-
-          for bin in "${mv_bin[@]}"; do
-            name="${bin##*/}"
-            if [[ -f "/usr/local/bin/${name}" ]]; then
-              if update-alternatives --install "${bin}" "${name}" "/usr/local/bin/${name}" 100; then
-                echo "✅ 'update-alternatives' successfully: '${bin}'."
-              else
-                echo "❌ 'update-alternatives' NOT successfully: '${bin}'."
-              fi
-            else
-              echo "💡 Does not exist: '/usr/local/bin/${name}'."
-            fi
-          done
-
-          sudo ldconfig
-
-          gpgconf --kill all
-          /usr/local/bin/gpg-agent --daemon
+            util-linux
 
       - name: ⚙️ Check GnuPG Version.
         shell: bash
@@ -188,6 +63,11 @@ jobs:
       - 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
@@ -262,22 +142,114 @@ jobs:
           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 }}
+          CISS_PHYS_AGE:       ${{ secrets.CISS_PHYS_AGE }}
+        run: |
+          set -Ceuo pipefail
+          umask 077
+
+          REPO_ROOT="$(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"
+          SOPS="${REPO_ROOT}/config/hooks/live/0860_sops.chroot"
+
+          if [[ ! -f "${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'/}"
+          export CISS_PHYS_AGE="${CISS_PHYS_AGE//$'\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}"
+
+          #perl -0777 -i -pe '
+          #  BEGIN {
+          #    our $age = $ENV{CISS_PHYS_AGE} // q{};
+          #  }
+          #  s/\{\{\s*secrets\.CISS_PHYS_AGE\s*\}\}/$age/g;
+          #' -- "${SOPS}"
+          #chmod 0755 "${SOPS}"
+
+          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: 6.12.22+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}" \
             --jump-host ${{ secrets.CISS_DLB_JUMP_HOSTS_1 }} \
             --root-password-file /opt/config/password.txt \
             --ssh-port ${{ secrets.CISS_DLB_SSH_PORT_1 }} \
-            --ssh-pubkey /opt/config
+            --ssh-pubkey /opt/config \
+            --trixie
+
+          REPO_ROOT="$(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
@@ -364,11 +336,12 @@ jobs:
           gpg --batch --yes --armor --detach-sign --output "${SIGNATURE_FILE}" "${VAR_ISO_FILE_SHA512}"
 
           timestamp=$(date -u +"%Y-%m-%dT%H:%M:%SZ")
-          PRIVATE_FILE="LIVE_ISO_FLV_1.private"
+          VAR_DATE="$(date +%F)"
+          PRIVATE_FILE="LIVE_ISO_TRIXIE_1.private"
           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>
@@ -378,12 +351,12 @@ jobs:
           # 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}")
 
@@ -432,7 +405,7 @@ jobs:
           GIT_SSH_COMMAND: "ssh -p 42842"
         run: |
           set -euo pipefail
-          PRIVATE_FILE="LIVE_ISO_FLV_1.private"
+          PRIVATE_FILE="LIVE_ISO_TRIXIE_1.private"
           git add "${PRIVATE_FILE}" || echo "✔️ Nothing to add."
 
       - name: 🔑 Commit and sign changes with CI metadata.
@@ -456,7 +429,7 @@ jobs:
             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 FLV 1 [skip ci]
+            COMMIT_MSG="DEPLOY BOT   : 🔐 Auto-Generate PRIVATE LIVE ISO TRIXIE 1 [skip ci]
 
           ${CI_HEADER}
 

.archive/icon.lib

@@ -5,7 +5,7 @@
 # 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
 ✅
@@ -46,4 +46,10 @@
 🧠
 📅
 🎯
-# 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

@@ -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

@@ -25,7 +25,7 @@ body:
     attributes:
       label: "Version"
       description: "Which version are you running? Use `./ciss_live_builder.sh -v`."
-      placeholder: "e.g., Master V8.03.644.2025.06.07"
+      placeholder: "e.g., Master V8.13.294.2025.10.28"
     validations:
       required: true
 

.gitea/TODO/dockerfile

@@ -9,7 +9,7 @@
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-### Version Master V8.03.644.2025.06.07
+# Version Master V8.13.294.2025.10.28
 
 FROM debian:bookworm
 

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

@@ -5,11 +5,11 @@
 # 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 V8.03.644.2025.06.07
+# Version Master V8.13.294.2025.10.28
 
 name: 🔁 Render README.md to README.html.
 

.gitea/trigger/t_generate_PRIVATE_trixie_0.yaml

@@ -1,5 +1,5 @@
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# 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>
@@ -11,5 +11,5 @@
 
 build:
   counter: 1023
-  version: V8.03.644.2025.06.07
+  version: V8.13.294.2025.10.28
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=yaml

.gitea/trigger/t_generate_PRIVATE_trixie_1.yaml

@@ -1,5 +1,5 @@
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# 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>
@@ -10,6 +10,6 @@
 # SPDX-Security-Contact: security@coresecret.eu
 
 build:
-  counter: 1023
-  version: V8.03.644.2025.06.07
+  counter: 1024
+  version: V8.13.294.2025.10.28
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=yaml

.gitea/trigger/t_generate_PUBLIC.yaml

@@ -11,5 +11,5 @@
 
 build:
   counter: 1023
-  version: V8.03.644.2025.06.07
+  version: V8.13.294.2025.10.28
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=yaml

.gitea/trigger/t_generate_dns.yaml

@@ -11,5 +11,5 @@
 
 build:
   counter: 1023
-  version: V8.03.644.2025.06.07
+  version: V8.13.294.2025.10.28
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=yaml

.gitea/workflows/generate_PRIVATE_trixie_0.yaml

@@ -1,5 +1,5 @@
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# 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>
@@ -9,9 +9,13 @@
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-### Version Master V8.03.644.2025.06.07
+# Version Master V8.13.294.2025.10.28
 
-name: 🔐 Generating a Private Live ISO FLV 0.
+name: 🔐 Generating a Private Live ISO TRIXIE.
+
+defaults:
+  run:
+    shell: bash
 
 permissions:
   contents: write
@@ -21,164 +25,35 @@ on:
     branches:
       - master
     paths:
-      - '.gitea/trigger/t_generate_PRIVATE_iso_flavour_0.yaml'
+      - '.gitea/trigger/t_generate_PRIVATE_trixie_0.yaml'
 
 jobs:
-  generate-private-ciss-debian-live-iso:
-    name: 🔐 Generating a Private Live ISO FLV 0.
-    runs-on: ciss.debian.live.builder.iso.generator
+  generate-private-cdlb-trixie:
+    name: 🔐 Generating a Private Live ISO TRIXIE.
+    runs-on: cdlb.trixie
 
-    ### Run all steps inside Debian Bookworm
     container:
-      image: debian:bookworm
+      image: debian:trixie
 
     steps:
-      - name: 🛠️ Basic Image Setup and enable Bookworm Backports.
-        run: |
-          apt-get update -y
-          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 -y
-          apt-get upgrade -y
-
-      - name: 🛠️ Installing Build Tools.
+      - name: 🛠️ Basic Image Setup.
         shell: bash
         run: |
-          apt-get update -y
-          apt-get install -y \
-            autoconf \
-            automake \
-            build-essential \
-            cryptsetup \
+          export DEBIAN_FRONTEND=noninteractive
+          apt-get update -qq
+          apt-get upgrade -y
+          apt-get install -y --no-install-recommends \
+            apt-utils \
+            bash \
+            ca-certificates \
             curl \
-            debootstrap \
-            dosfstools \
-            efibootmgr \
-            gettext \
             git \
             gnupg \
-            haveged \
-            libbz2-dev \
-            zlib1g-dev \
-            liblzma-dev \
-            libtool \
-            live-build \
-            parted \
-            pkg-config \
-            ssh \
-            ssl-cert \
+            openssh-client \
+            openssl \
+            perl \
             sudo \
-            texinfo \
-            wget \
-            whois \
-
-      - name: 🛠️ Build GnuPG from the sources, as the Bookworm GPG does not understand key format 5.
-        shell: bash
-        run: |
-          urls=(
-            "https://gnupg.org/ftp/gcrypt/npth/npth-1.8.tar.bz2"
-            "https://gnupg.org/ftp/gcrypt/libgpg-error/libgpg-error-1.55.tar.bz2"
-            "https://gnupg.org/ftp/gcrypt/libgcrypt/libgcrypt-1.11.1.tar.bz2"
-            "https://gnupg.org/ftp/gcrypt/libksba/libksba-1.6.7.tar.bz2"
-            "https://gnupg.org/ftp/gcrypt/libassuan/libassuan-3.0.2.tar.bz2"
-            "https://gnupg.org/ftp/gcrypt/gnupg/gnupg-2.4.8.tar.bz2"
-          )
-
-          wget --https-only https://gnupg.org/signature_key.asc -O signature_key.asc > /dev/null 2>&1
-          gpg --batch --import signature_key.asc
-
-          for url in "${urls[@]}"; do
-            archive_name="${url##*/}"
-            pkg_name="${archive_name%.tar.bz2}"
-            echo "🔄 Processing ${pkg_name}"
-            if [[ ! -f "${archive_name}" ]]; then
-              echo "📥 Downloading: '${archive_name}'."
-              if wget --https-only "${url}" -O "${archive_name}" > /dev/null 2>&1 && wget --https-only "${url}.sig" -O "${archive_name}.sig" > /dev/null 2>&1; then
-                echo "✅ Download successful: '${archive_name}'."
-              else
-                echo "❌ Download NOT successful: '${archive_name}'."
-                exit 1
-              fi
-            else
-              echo "💡 Skipping download, package already exists: '${archive_name}'."
-            fi
-
-            if ! gpg --verify "${archive_name}.sig" "${archive_name}"; then echo "❌ Bad Signature: '${archive_name}'.";exit 1; fi
-
-            if [[ ! -d "${pkg_name}" ]]; then
-              echo "📂 Extracting: '${archive_name}'."
-              if tar -xjf "${archive_name}"; then
-                echo "✅ Extraction successful: '${archive_name}'."
-              else
-                echo "❌ Extraction not successful: '${archive_name}'."
-                exit 1
-              fi
-            else
-              echo "💡 Skipping directory, already exists: '${pkg_name}'."
-            fi
-
-            echo "🏗️ Build and install the package: '${pkg_name}'."
-            cd "${pkg_name}" || { echo "❌ Could not change to '${pkg_name}'."; exit 1; }
-            mkdir -p build
-            cd build || { echo "❌ Could not change to '/build'."; exit 1; }
-
-            sudo ../configure > /dev/null 2>&1  || { echo "❌ '../configure' NOT successful for '${pkg_name}'."; exit 1; }
-            make > /dev/null 2>&1 || { echo "❌ 'make' NOT successful for '${pkg_name}'."; exit 1; }
-            sudo make install > /dev/null 2>&1 || { echo "❌ 'make install' NOT successful for '${pkg_name}'."; exit 1; }
-
-            cd ../.. || { echo "❌ Could not change to '../..'."; exit 1; }
-
-            rm -f "${archive_name}" && rm -f "${archive_name}.sig" && echo "✅ Removed archive: '${pkg_name}'."
-            rm -fr "${pkg_name}" && echo "✅ Removed build artifacts: '${pkg_name}'."
-            echo "✅ Successful build and installation of '${pkg_name}'."
-            echo "-------------------------------------------------------------------------------------"
-
-          done
-
-          rm -f signature_key.asc
-
-          echo "✅ All packages were built and installed successfully."
-
-          mv_bin=(
-            "/usr/bin/gpg"
-            "/usr/bin/gpg-agent"
-            "/usr/bin/gpgconf"
-            "/usr/bin/gpg-connect-agent"
-            "/usr/bin/gpg-wks-client"
-            "/usr/bin/gpg-preset-passphrase"
-          )
-
-          for bin in "${mv_bin[@]}"; do
-            name="${bin##*/}"
-            if [[ -f "${bin}" && -f "/usr/local/bin/${name}" ]]; then
-              if mv "${bin}" "${bin}.debian-backup"; then
-                echo "✅ Moved successfully: '${bin}'."
-              else
-                echo "❌ Moved NOT successfully: '${bin}'."
-              fi
-            else
-              echo "💡 Does not exist as build binary: '${bin}'."
-            fi
-          done
-
-          for bin in "${mv_bin[@]}"; do
-            name="${bin##*/}"
-            if [[ -f "/usr/local/bin/${name}" ]]; then
-              if update-alternatives --install "${bin}" "${name}" "/usr/local/bin/${name}" 100; then
-                echo "✅ 'update-alternatives' successfully: '${bin}'."
-              else
-                echo "❌ 'update-alternatives' NOT successfully: '${bin}'."
-              fi
-            else
-              echo "💡 Does not exist: '/usr/local/bin/${name}'."
-            fi
-          done
-
-          sudo ldconfig
-
-          gpgconf --kill all
-          /usr/local/bin/gpg-agent --daemon
+            util-linux
 
       - name: ⚙️ Check GnuPG Version.
         shell: bash
@@ -188,6 +63,11 @@ jobs:
       - 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
@@ -262,17 +142,91 @@ jobs:
           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: 6.12.22+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 \
@@ -280,7 +234,14 @@ jobs:
             --provider-netcup-ipv6 ${{ secrets.CISS_DLB_NETCUP_IPV6 }} \
             --root-password-file /opt/config/password.txt \
             --ssh-port ${{ secrets.CISS_DLB_SSH_PORT }} \
-            --ssh-pubkey /opt/config
+            --ssh-pubkey /opt/config \
+            --sshfp \
+            --trixie
+
+          REPO_ROOT="$(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
@@ -367,11 +328,12 @@ jobs:
           gpg --batch --yes --armor --detach-sign --output "${SIGNATURE_FILE}" "${VAR_ISO_FILE_SHA512}"
 
           timestamp=$(date -u +"%Y-%m-%dT%H:%M:%SZ")
-          PRIVATE_FILE="LIVE_ISO_FLV_0.private"
+          VAR_DATE="$(date +%F)"
+          PRIVATE_FILE="LIVE_ISO_TRIXIE_0.private"
           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>
@@ -381,12 +343,12 @@ jobs:
           # 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}")
 
@@ -435,7 +397,7 @@ jobs:
           GIT_SSH_COMMAND: "ssh -p 42842"
         run: |
           set -euo pipefail
-          PRIVATE_FILE="LIVE_ISO_FLV_0.private"
+          PRIVATE_FILE="LIVE_ISO_TRIXIE_0.private"
           git add "${PRIVATE_FILE}" || echo "✔️ Nothing to add."
 
       - name: 🔑 Commit and sign changes with CI metadata.
@@ -459,7 +421,7 @@ jobs:
             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 FLV 0 [skip ci]
+            COMMIT_MSG="DEPLOY BOT   : 🔐 Auto-Generate PRIVATE LIVE ISO TRIXIE 0 [skip ci]
 
           ${CI_HEADER}
 

.gitea/workflows/generate_PRIVATE_trixie_1.yaml

@@ -0,0 +1,456 @@
+# 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 V8.13.294.2025.10.28
+
+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 -qq
+          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 }}
+          CISS_PHYS_AGE:       ${{ secrets.CISS_PHYS_AGE }}
+        run: |
+          set -Ceuo pipefail
+          umask 077
+
+          REPO_ROOT="$(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"
+          SOPS="${REPO_ROOT}/config/hooks/live/0860_sops.chroot"
+
+          if [[ ! -f "${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'/}"
+          export CISS_PHYS_AGE="${CISS_PHYS_AGE//$'\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}"
+
+          perl -0777 -i -pe '
+            BEGIN {
+              our $age = $ENV{CISS_PHYS_AGE} // q{};
+            }
+            s/\{\{\s*secrets\.CISS_PHYS_AGE\s*\}\}/$age/g;
+          ' -- "${SOPS}"
+          chmod 0755 "${SOPS}"
+
+          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

@@ -9,10 +9,14 @@
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-### Version Master V8.03.644.2025.06.07
+# Version Master V8.13.294.2025.10.28
 
 name: 💙 Generating a PUBLIC Live ISO.
 
+defaults:
+  run:
+    shell: bash
+
 permissions:
   contents: write
 
@@ -24,161 +28,32 @@ on:
       - '.gitea/trigger/t_generate_PUBLIC.yaml'
 
 jobs:
-  generate-private-ciss-debian-live-iso:
+  generate-public-cdlb-trixie:
     name: 💙 Generating a PUBLIC Live ISO.
-    runs-on: ciss.debian.live.builder.iso.generator
+    runs-on: cdlb.trixie
 
-    ### Run all steps inside Debian Bookworm
     container:
-      image: debian:bookworm
+      image: debian:trixie
 
     steps:
-      - name: 🛠️ Basic Image Setup and enable Bookworm Backports.
-        run: |
-          apt-get update -y
-          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 -y
-          apt-get upgrade -y
-
-      - name: 🛠️ Installing Build Tools.
+      - name: 🛠️ Basic Image Setup.
         shell: bash
         run: |
-          apt-get update -y
-          apt-get install -y \
-            autoconf \
-            automake \
-            build-essential \
-            cryptsetup \
+          export DEBIAN_FRONTEND=noninteractive
+          apt-get update -qq
+          apt-get upgrade -y
+          apt-get install -y --no-install-recommends \
+            apt-utils \
+            bash \
+            ca-certificates \
             curl \
-            debootstrap \
-            dosfstools \
-            efibootmgr \
-            gettext \
             git \
             gnupg \
-            haveged \
-            libbz2-dev \
-            zlib1g-dev \
-            liblzma-dev \
-            libtool \
-            live-build \
-            parted \
-            pkg-config \
-            ssh \
-            ssl-cert \
+            openssh-client \
+            openssl \
+            perl \
             sudo \
-            texinfo \
-            wget \
-            whois \
-
-      - name: 🛠️ Build GnuPG from the sources, as the Bookworm GPG does not understand key format 5.
-        shell: bash
-        run: |
-          urls=(
-            "https://gnupg.org/ftp/gcrypt/npth/npth-1.8.tar.bz2"
-            "https://gnupg.org/ftp/gcrypt/libgpg-error/libgpg-error-1.55.tar.bz2"
-            "https://gnupg.org/ftp/gcrypt/libgcrypt/libgcrypt-1.11.1.tar.bz2"
-            "https://gnupg.org/ftp/gcrypt/libksba/libksba-1.6.7.tar.bz2"
-            "https://gnupg.org/ftp/gcrypt/libassuan/libassuan-3.0.2.tar.bz2"
-            "https://gnupg.org/ftp/gcrypt/gnupg/gnupg-2.4.8.tar.bz2"
-          )
-
-          wget --https-only https://gnupg.org/signature_key.asc -O signature_key.asc > /dev/null 2>&1
-          gpg --batch --import signature_key.asc
-
-          for url in "${urls[@]}"; do
-            archive_name="${url##*/}"
-            pkg_name="${archive_name%.tar.bz2}"
-            echo "🔄 Processing ${pkg_name}"
-            if [[ ! -f "${archive_name}" ]]; then
-              echo "📥 Downloading: '${archive_name}'."
-              if wget --https-only "${url}" -O "${archive_name}" > /dev/null 2>&1 && wget --https-only "${url}.sig" -O "${archive_name}.sig" > /dev/null 2>&1; then
-                echo "✅ Download successful: '${archive_name}'."
-              else
-                echo "❌ Download NOT successful: '${archive_name}'."
-                exit 1
-              fi
-            else
-              echo "💡 Skipping download, package already exists: '${archive_name}'."
-            fi
-
-            if ! gpg --verify "${archive_name}.sig" "${archive_name}"; then echo "❌ Bad Signature: '${archive_name}'.";exit 1; fi
-
-            if [[ ! -d "${pkg_name}" ]]; then
-              echo "📂 Extracting: '${archive_name}'."
-              if tar -xjf "${archive_name}"; then
-                echo "✅ Extraction successful: '${archive_name}'."
-              else
-                echo "❌ Extraction not successful: '${archive_name}'."
-                exit 1
-              fi
-            else
-              echo "💡 Skipping directory, already exists: '${pkg_name}'."
-            fi
-
-            echo "🏗️ Build and install the package: '${pkg_name}'."
-            cd "${pkg_name}" || { echo "❌ Could not change to '${pkg_name}'."; exit 1; }
-            mkdir -p build
-            cd build || { echo "❌ Could not change to '/build'."; exit 1; }
-
-            sudo ../configure > /dev/null 2>&1  || { echo "❌ '../configure' NOT successful for '${pkg_name}'."; exit 1; }
-            make > /dev/null 2>&1 || { echo "❌ 'make' NOT successful for '${pkg_name}'."; exit 1; }
-            sudo make install > /dev/null 2>&1 || { echo "❌ 'make install' NOT successful for '${pkg_name}'."; exit 1; }
-
-            cd ../.. || { echo "❌ Could not change to '../..'."; exit 1; }
-
-            rm -f "${archive_name}" && rm -f "${archive_name}.sig" && echo "✅ Removed archive: '${pkg_name}'."
-            rm -fr "${pkg_name}" && echo "✅ Removed build artifacts: '${pkg_name}'."
-            echo "✅ Successful build and installation of '${pkg_name}'."
-            echo "-------------------------------------------------------------------------------------"
-
-          done
-
-          rm -f signature_key.asc
-
-          echo "✅ All packages were built and installed successfully."
-
-          mv_bin=(
-            "/usr/bin/gpg"
-            "/usr/bin/gpg-agent"
-            "/usr/bin/gpgconf"
-            "/usr/bin/gpg-connect-agent"
-            "/usr/bin/gpg-wks-client"
-            "/usr/bin/gpg-preset-passphrase"
-          )
-
-          for bin in "${mv_bin[@]}"; do
-            name="${bin##*/}"
-            if [[ -f "${bin}" && -f "/usr/local/bin/${name}" ]]; then
-              if mv "${bin}" "${bin}.debian-backup"; then
-                echo "✅ Moved successfully: '${bin}'."
-              else
-                echo "❌ Moved NOT successfully: '${bin}'."
-              fi
-            else
-              echo "💡 Does not exist as build binary: '${bin}'."
-            fi
-          done
-
-          for bin in "${mv_bin[@]}"; do
-            name="${bin##*/}"
-            if [[ -f "/usr/local/bin/${name}" ]]; then
-              if update-alternatives --install "${bin}" "${name}" "/usr/local/bin/${name}" 100; then
-                echo "✅ 'update-alternatives' successfully: '${bin}'."
-              else
-                echo "❌ 'update-alternatives' NOT successfully: '${bin}'."
-              fi
-            else
-              echo "💡 Does not exist: '/usr/local/bin/${name}'."
-            fi
-          done
-
-          sudo ldconfig
-
-          gpgconf --kill all
-          /usr/local/bin/gpg-agent --daemon
+            util-linux
 
       - name: ⚙️ Check GnuPG Version.
         shell: bash
@@ -188,6 +63,11 @@ jobs:
       - 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
@@ -269,15 +149,18 @@ jobs:
           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 \
             --root-password-file /opt/config/password.txt \
             --ssh-port 42137 \
-            --ssh-pubkey /opt/config
+            --ssh-pubkey /opt/config \
+            --trixie
 
       - name: 📥 Checking Centurion Cloud for existing LIVE ISOs.
         shell: bash
@@ -364,11 +247,12 @@ jobs:
           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.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>
@@ -378,12 +262,12 @@ jobs:
           # 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}")
 

.gitea/workflows/linter_char_scripts.yaml

@@ -9,7 +9,7 @@
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-### Version Master V8.03.644.2025.06.07
+# Version Master V8.13.294.2025.10.28
 
 # Gitea Workflow: Shell-Script Linting
 #
@@ -41,6 +41,10 @@ jobs:
         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
@@ -202,11 +206,12 @@ jobs:
             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: 2025-06-05; 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>
@@ -216,7 +221,7 @@ jobs:
           # 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}"
 
           ⚠️ The last linter check was NOT successful. ⚠️
 
@@ -225,11 +230,12 @@ jobs:
           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: 2025-06-05; 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>
@@ -239,7 +245,7 @@ jobs:
           # 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}"
 
           ✅ The last linter check was successful. ✅
 

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

@@ -9,7 +9,7 @@
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-### Version Master V8.03.644.2025.06.07
+# Version Master V8.13.294.2025.10.28
 
 name: 🛡️ Retrieve DNSSEC status of coresecret.dev.
 
@@ -33,6 +33,10 @@ jobs:
         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

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

@@ -9,7 +9,7 @@
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-### Version Master V8.03.644.2025.06.07
+# Version Master V8.13.294.2025.10.28
 
 name: 🔁 Render Graphviz Diagrams.
 
@@ -34,6 +34,10 @@ jobs:
         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

.gitignore

@@ -10,11 +10,11 @@
 # SPDX-Security-Contact: security@coresecret.eu
 .checklist/
 .idea/
-build/
 out/
 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

@@ -15,5 +15,5 @@ properties_SPDX-License-Identifier="EUPL-1.2 OR LicenseRef-CCLA-1.0"
 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="V8.03.644.2025.06.07"
-# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf
+properties_version="V8.13.294.2025.10.28"
+# 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 V8.03.644.2025.06.07
+PackageVersion: Master V8.13.294.2025.10.28
 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

@@ -1,5 +1,5 @@
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-06-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-28; 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>
@@ -9,7 +9,7 @@
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-This file was automatically generated by the DEPLOY BOT on: "2025-06-07T13:59:44Z".
+This file was automatically generated by the DEPLOY BOT on: "2025-10-28T18:49:03Z"
 
 ✅ The last linter check was successful. ✅
 

LIVE_ISO.public

@@ -1,5 +1,5 @@
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-06-01; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-24; 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>
@@ -9,19 +9,19 @@
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-This file was automatically generated by the DEPLOY BOT on: "2025-06-07T13:28:13Z".
+This file was automatically generated by the DEPLOY BOT on: "2025-10-24T14:50:31Z"
 
 CISS.debian.live.builder ISO :
-  "ciss-debian-live-2025_06_07T12_48_35Z-amd64.hybrid.iso"
+  "ciss-debian-live-2025_10_24T13_56_21Z-amd64.hybrid.iso"
 CISS.debian.live.builder ISO sha512 :
-  "ciss-debian-live-2025_06_07T12_48_35Z-amd64.hybrid.iso.sha512"
+  036a1004fee05962610c6e604510bc5293aecf56ddca6cde311179f4b437f6d1d474c6deaca0189de5bea80186068ac82de17b9814fbd6ab2e9ed54e47f3de8f
 CISS.debian.live.builder ISO sha512 sign :
   -----BEGIN PGP SIGNATURE-----
 
-iHUEABYKAB0WIQSqYnPMNKGz69afyHA85KY4hzOwIQUCaEQ+bQAKCRA85KY4hzOw
-IdnhAQC+NGhgMMPqZgS51p59kCYSoGLDzodY7TtFOJOxLo5LeAD/bgJifC51JFju
-RKy7e3am5Z80cAGZJ1RFliRgjJVZeAU=
-=P9Qk
+iHQEABYKAB0WIQSqYnPMNKGz69afyHA85KY4hzOwIQUCaPuSNwAKCRA85KY4hzOw
+IXoDAP9cfoBONoT0ckPEZS7Ny/4l3hLGW4hKcJYz/bTJLy9MkAD468vyMLOwI9yM
+ipWXHva/2ghh0CqBXzuR+QfSRToABg==
+=8+N2
 -----END PGP SIGNATURE-----
 
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=text

LIVE_ISO_TRIXIE_0.private

@@ -1,5 +1,5 @@
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-06-01; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-28; 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>
@@ -9,19 +9,19 @@
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-This file was automatically generated by the DEPLOY BOT on: "2025-06-07T11:52:28Z".
+This file was automatically generated by the DEPLOY BOT on: "2025-10-28T09:52:35Z"
 
 CISS.debian.live.builder ISO :
-  "ciss-debian-live-2025_06_07T11_12_45Z-amd64.hybrid.iso"
+  "ciss-debian-live-2025_10_28T08_58_22Z-amd64.hybrid.iso"
 CISS.debian.live.builder ISO sha512 :
-  "ciss-debian-live-2025_06_07T11_12_45Z-amd64.hybrid.iso.sha512"
+  098af6c0d36b41bfe7c03d978eefa721bd39ba4ed4ba26c422fb589a635522369d0f8ef2ca48248cf6f0e11dda55ef748247822f05c6291fd0aca3763ea1abf2
 CISS.debian.live.builder ISO sha512 sign :
   -----BEGIN PGP SIGNATURE-----
 
-iHUEABYKAB0WIQSqYnPMNKGz69afyHA85KY4hzOwIQUCaEQn/AAKCRA85KY4hzOw
-IeMFAP0ZsIuEHFz3EgDpk1rN066VZ2nGrx3NvQenvjg5EQsRNAD+MNlJ4JE9zk17
-pvWF+r0l2K7P6CmxlK7WZFU2Hs6KYwc=
-=6azh
+iHUEABYKAB0WIQSqYnPMNKGz69afyHA85KY4hzOwIQUCaQCSYwAKCRA85KY4hzOw
+Ic8eAP98y67arFZCGX/ooghY/eMGbcxWnhJSgfB5uVCgJcBu5wD+ObnpugIPVv/l
+OplWsbTlCPA1gMtuJHflKypwlIKQGQU=
+=Aehw
 -----END PGP SIGNATURE-----
 
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=text

LIVE_ISO_TRIXIE_1.private

@@ -1,5 +1,5 @@
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-06-01; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-28; 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>
@@ -9,19 +9,19 @@
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-This file was automatically generated by the DEPLOY BOT on: "2025-06-07T12:39:29Z".
+This file was automatically generated by the DEPLOY BOT on: "2025-10-28T19:43:00Z"
 
 CISS.debian.live.builder ISO :
-  "ciss-debian-live-2025_06_07T12_01_03Z-amd64.hybrid.iso"
+  "ciss-debian-live-2025_10_28T18_48_33Z-amd64.hybrid.iso"
 CISS.debian.live.builder ISO sha512 :
-  "ciss-debian-live-2025_06_07T12_01_03Z-amd64.hybrid.iso.sha512"
+  54765612eabb3cf442f4ecc172aab818d3a39ac6d686741f5c92523e83b297dcd67c290427f0965bced7df466f0b46e59cd81c5123d29044c5b9d07ee13ee82a
 CISS.debian.live.builder ISO sha512 sign :
   -----BEGIN PGP SIGNATURE-----
 
-iHUEABYKAB0WIQSqYnPMNKGz69afyHA85KY4hzOwIQUCaEQzAQAKCRA85KY4hzOw
-IedVAQDj71Q0oAweOhYGabzgECIwgIxHPypvidif0fnjucGuIgD+O5XAvFsPnUzQ
-7lXvBLPURbSoa5//sgkXL3Pmik2vvwk=
-=TJPq
+iHUEABYKAB0WIQSqYnPMNKGz69afyHA85KY4hzOwIQUCaQEcxAAKCRA85KY4hzOw
+ITCiAP9e2/bxJ7t8abtVImKGLnuEUJl82LYGlHi5JLEcdZMXYAEAsI93ja0t7G2m
+eMb/3bex3UnB6xwpd9tceBZBK8UDbAQ=
+=/fm8
 -----END PGP SIGNATURE-----
 
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=text

README.md

@@ -2,17 +2,17 @@
 gitea: none
 include_toc: true
 ---
-[![Static Badge](https://badges.coresecret.dev/badge/Release-V8.03.644.2025.06.07-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-V8.13.294.2025.10.28-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/)  
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+[![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/)  
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-[![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/)  
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+[![Static Badge](https://badges.coresecret.dev/badge/Gitea-1.24.7-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-2025.2.4-white?style=plastic&logo=intellijidea&logoColor=white&logoSize=auto&label=IntelliJ&color=%23000000)](https://www.jetbrains.com/store/?section=personal&billing=yearly)  
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@@ -25,8 +25,8 @@ 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**: 8.03<br>
-**Build**: V8.03.644.2025.06.07<br>
+**Master Version**: 8.13<br>
+**Build**: V8.13.294.2025.10.28<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
@@ -37,7 +37,7 @@ changes and made publicly available for download. The latest generic ISO is avai
 
 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/) 
@@ -70,7 +70,16 @@ separate directory tree, employs `DynamicUser` features, and adheres to strict s
 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. Immutable Source-of-Truth System
+## 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 
@@ -89,7 +98,7 @@ 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>
@@ -103,11 +112,11 @@ After build and configuration, the following audit reports can be generated:
 * **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](/docs/AUDIT_SSH.md)**
 
-## 1.3. Preview
+## 1.4. Preview
 
 ![CISS.debian.live.builder](/docs/screenshots/CISS.debian.live.builder_preview.jpeg)
 
-## 1.4. 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>
 
@@ -138,17 +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).
 
-## 1.5. Versioning Schema
+## 1.6. Versioning Schema
 
 This project adheres strictly to a structured versioning scheme following the pattern x.y.z-Date.
 
-Example: `8.03.384.2025.06.03`
+Example: `V8.13.294.2025.10.28`
 
 `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.
@@ -274,7 +290,7 @@ apply or revert these controls.
 * **Description**: The SSH tunnel and access are secured through multiple layers of defense:
   * **Firewall Restriction**: ufw allows connections only from defined jump host or VPN exit node IPs.
   * **TCP Wrappers**: `/etc/hosts.allow` and `/etc/hosts.deny` enforce an `ALL: ALL` deny policy, permitting only specified hosts.
-  * **One-Hit Ban**: A custom Fail2Ban rule `/etc/fail2ban/jail.d/centurion-default.conf` immediately bans any host 
+  * **One-Hit Ban**: A custom Fail2Ban rule `/etc/fail2ban/jail.d/ciss-default.conf` immediately bans any host 
     that touches closed ports. 
     * Additionally, the `fail2ban` service is hardened as well according to:
     [Arch Linux Wiki Fail2ban Hardening](https://wiki.archlinux.org/title/fail2ban#Service_hardening) 
@@ -382,43 +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 \
@@ -427,8 +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.
@@ -436,7 +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**: V8.13.294.2025.10.28<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 **V8.13.294.2025.10.28** (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_hardening_fail2ban.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

@@ -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 V8.03.644.2025.06.07"
-
-### 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]:-$0}")"
 # shellcheck disable=SC2155
@@ -107,77 +36,218 @@ declare -grx SCRIPT_BASEPATH="$(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_ciss_upgrades.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_update_microcode.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
+ciss_upgrades
 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
+update_microcode
 
 ### 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/hooks/.keep

@@ -0,0 +1,10 @@
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-10-26; 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

config/hooks/live/0000_basic_chroot_setup.chroot

@@ -0,0 +1,219 @@
+#!/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}"
+
+#######################################
+# Generates '/etc/default/ciss-xdg-profile'
+# Globals:
+#   None
+# Arguments:
+#   None
+# Returns:
+#   0: on success
+#######################################
+generate_ciss_xdg_profile() {
+  cat << 'EOF' >> /etc/default/ciss-xdg-profile
+# 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
+
+# Default toggles for ciss-xdg-profile
+# 1 = enable, 0 = disable
+
+ENABLE_XDG_BASH_HISTORY=1
+ENABLE_XDG_LESS_HISTORY=1
+ENABLE_XDG_ZSH_HISTORY=1
+
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf
+EOF
+
+  chmod 0644 /etc/default/ciss-xdg-profile
+
+  return 0
+}
+### Prevents accidental 'unset -f'.
+# shellcheck disable=SC2034
+readonly -f generate_ciss_xdg_profile
+
+#######################################
+# Generates '/etc/profile.d/ciss-xdg.sh'
+# Globals:
+#   None
+# Arguments:
+#   None
+# Returns:
+#   0: on success
+#######################################
+generate_ciss_xdg_sh() {
+  cat << 'EOF' >> /etc/profile.d/ciss-xdg.sh
+#!/bin/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
+
+# shellcheck shell=sh
+
+# This file is sourced by login shells via '/etc/profile'. Keep POSIX sh compatible.
+
+### XDG variables (do not override if already set).
+export XDG_CONFIG_HOME="${XDG_CONFIG_HOME:-${HOME}/.config}"
+export XDG_DATA_HOME="${XDG_DATA_HOME:-${HOME}/.local/share}"
+export XDG_CACHE_HOME="${XDG_CACHE_HOME:-${HOME}/.cache}"
+export XDG_STATE_HOME="${XDG_STATE_HOME:-${HOME}/.local/state}"
+export XDG_CONFIG_DIRS="${XDG_CONFIG_DIRS:-/etc/xdg}"
+export XDG_DATA_DIRS="${XDG_DATA_DIRS:-/usr/local/share:/usr/share}"
+
+### XDG_RUNTIME_DIR is provided by systemd-logind; do not set a persistent path.
+# shellcheck disable=SC2312
+if [ -z "${XDG_RUNTIME_DIR:-}" ] && [ -d "/run/user/$(id -u)" ]; then
+  # shellcheck disable=SC2155
+  export XDG_RUNTIME_DIR="/run/user/$(id -u)"
+fi
+
+### Create canonical directories idempotently with 0700.
+_xdg_umask="$(umask)"
+umask 077
+[ -d "${XDG_CONFIG_HOME}"     ] || install -d -m 0700 -- "${XDG_CONFIG_HOME}"
+[ -d "${XDG_DATA_HOME}"       ] || install -d -m 0700 -- "${XDG_DATA_HOME}"
+[ -d "${XDG_CACHE_HOME}"      ] || install -d -m 0700 -- "${XDG_CACHE_HOME}"
+[ -d "${XDG_STATE_HOME}"      ] || install -d -m 0700 -- "${XDG_STATE_HOME}"
+umask "${_xdg_umask}"
+unset _xdg_umask
+
+### Optional migrations (controlled via /'etc/default/ciss-xdg-profile').
+[ -f /etc/default/ciss-xdg-profile ] && . /etc/default/ciss-xdg-profile
+
+### Bash history -> XDG_STATE_HOME (only if running bash).
+if [ "${ENABLE_XDG_BASH_HISTORY:-1}" = "1" ] && [ -n "${BASH_VERSION:-}" ]; then
+  [ -d "${XDG_STATE_HOME}/bash" ] || install -d -m 0700 -- "${XDG_STATE_HOME}/bash"
+  export HISTFILE="${XDG_STATE_HOME}/bash/history"
+fi
+
+### Less history -> XDG_STATE_HOME
+if [ "${ENABLE_XDG_LESS_HISTORY:-1}" = "1" ]; then
+  [ -d "${XDG_STATE_HOME}/less" ] || install -d -m 0700 -- "${XDG_STATE_HOME}/less"
+  export LESSHISTFILE="${XDG_STATE_HOME}/less/history"
+fi
+
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh
+EOF
+
+  chmod 0755 /etc/profile.d/ciss-xdg.sh
+
+  return 0
+}
+### Prevents accidental 'unset -f'.
+# shellcheck disable=SC2034
+readonly -f generate_ciss_xdg_sh
+
+#######################################
+# Generates '/root/ciss_xdg_tmp.sh'
+# Globals:
+#   None
+# Arguments:
+#   None
+# Returns:
+#   0: on success
+#######################################
+generate_ciss_xdg_tmp_sh() {
+  cat << 'EOF' >> /root/ciss_xdg_tmp.sh
+#!/bin/bash
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-06-17; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.installer.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.installer
+# SPDX-Security-Contact: security@coresecret.eu
+
+### XDG variables (do not override if already set).
+
+set -a
+
+# shellcheck disable=SC2034
+XDG_CONFIG_HOME="${XDG_CONFIG_HOME:-${HOME}/.config}"
+# shellcheck disable=SC2034
+XDG_DATA_HOME="${XDG_DATA_HOME:-${HOME}/.local/share}"
+# shellcheck disable=SC2034
+XDG_CACHE_HOME="${XDG_CACHE_HOME:-${HOME}/.cache}"
+# shellcheck disable=SC2034
+XDG_STATE_HOME="${XDG_STATE_HOME:-${HOME}/.local/state}"
+# shellcheck disable=SC2034
+XDG_CONFIG_DIRS="${XDG_CONFIG_DIRS:-/etc/xdg}"
+# shellcheck disable=SC2034
+XDG_DATA_DIRS="${XDG_DATA_DIRS:-/usr/local/share:/usr/share}"
+
+### Optional migrations (controlled via /etc/default/ciss-xdg-profile).
+[[ -f /etc/default/ciss-xdg-profile ]] && . /etc/default/ciss-xdg-profile
+
+### Bash history -> XDG_STATE_HOME (only if running bash).
+if [[ "${ENABLE_XDG_BASH_HISTORY:-1}" = "1" ]] && [[ -n "${BASH_VERSION:-}" ]]; then
+  HISTFILE="${XDG_STATE_HOME}/bash/history"
+fi
+
+set +a
+
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh
+EOF
+  chmod 0700 /root/ciss_xdg_tmp.sh
+
+  return 0
+}
+### Prevents accidental 'unset -f'.
+# shellcheck disable=SC2034
+readonly -f generate_ciss_xdg_tmp_sh
+
+generate_ciss_xdg_profile
+generate_ciss_xdg_sh
+generate_ciss_xdg_tmp_sh
+
+[[ -r /root/ciss_xdg_tmp.sh ]] && . /root/ciss_xdg_tmp.sh
+export DEBIAN_FRONTEND="noninteractive"
+apt-get update -qq
+apt-get install -y --no-install-suggests libpam-systemd
+
+if [[ -f /root/.architecture ]]; then
+
+  apt-get install -y --no-install-suggests amd64-microcode intel-microcode
+  rm -f /root/.architecture
+
+fi
+
+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}"
+
+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-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 +37,37 @@ 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
 }
 
+[[ -r /root/ciss_xdg_tmp.sh ]] && . /root/ciss_xdg_tmp.sh
+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-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 +83,133 @@ cat << EOF >| /etc/initramfs-tools/modules
 # raid1
 # sd_mod
 
-### QEMU Bochs-compatible virtual machine support
-bochs
+### AppArmor -------------------------------------------------------------------------------------------------------------------
+apparmor
 
-### Device-mapper core module (required for all dm_* features)
-dm_mod
-
-### Device-mapper integrity target (provides integrity checking)
-dm-integrity
-
-### 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
+### btrfs ----------------------------------------------------------------------------------------------------------------------
 btrfs
-
-### Zstandard compression support for btrfs
+lzo
+xor
+xxhash
+zstd
 zstd_compress
 
-### XOR parity implementation for RAID functionality
-xor
+### cryptography ---------------------------------------------------------------------------------------------------------------
+aes_generic
+blake2b_generic
+crc32c_generic
+cryptd
+libcrc32c
+sha256_generic
+sha512_generic
+xts
 
-### RAID6 parity generation module
+### cryptsetup -----------------------------------------------------------------------------------------------------------------
+dm_crypt
+dm_integrity
+dm_mod
+dm_verity
+
+### Entropy --------------------------------------------------------------------------------------------------------------------
+jitterentropy_rng
+rng_core
+
+### ESP/FAT/UEFI ---------------------------------------------------------------------------------------------------------------
+exfat
+fat
+nls_ascii
+nls_cp437
+nls_iso8859-1
+nls_iso8859-15
+nls_utf8
+vfat
+
+### ext4 -----------------------------------------------------------------------------------------------------------------------
+ext4
+jbd2
+libcrc32c
+
+### Live-ISO -------------------------------------------------------------------------------------------------------------------
+loop
+squashfs
+overlay
+
+#### nftables ------------------------------------------------------------------------------------------------------------------
+#nf_log_common  # built-in
+#nft_counter    # built-in
+#nft_icmp       # built-in
+#nft_icmpv6     # built-in
+#nft_meta       # built-in
+#nft_set_hash   # built-in
+#nft_set_rbtree # built-in
+#nft_tcp        # built-in
+#nft_udp        # built-in
+nf_conntrack
+nf_nat
+nf_reject_ipv4
+nf_reject_ipv6
+nf_tables
+nfnetlink
+nfnetlink_log
+nft_ct
+nft_limit
+nft_log
+nft_masq
+nft_nat
+nft_reject_inet
+
+### NVMe -----------------------------------------------------------------------------------------------------------------------
+nvme
+nvme_core
+
+### QEMU -----------------------------------------------------------------------------------------------------------------------
+bochs
+
+### RAID -----------------------------------------------------------------------------------------------------------------------
+raid456
 raid6_pq
 
-### Combined RAID4/5/6 support module
-raid456
+### SCSI/SATA ------------------------------------------------------------------------------------------------------------------
+ahci
+ata_generic
+libahci
+libata
+scsi_dh_alua
+scsi_mod
+sd_mod
+sg
+sr_mod
 
-### Network Driver Host-machine
+### USB ------------------------------------------------------------------------------------------------------------------------
+ehci_pci
+ohci_pci
+uas
+uhci_hcd
+usb_storage
+xhci_hcd
+xhci_pci
+
+### Virtual --------------------------------------------------------------------------------------------------------------------
+virtio_blk
+virtio_console
+virtio_pci
+virtio_rng
+virtio_scsi
+
+### 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-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
 
@@ -131,7 +224,7 @@ cat << 'EOF' >| /etc/initramfs-tools/update-initramfs.conf
 # If set to all update-initramfs will update all initramfs
 # If set to no disables any update to initramfs besides kernel upgrade
 
-update_initramfs=yes
+update_initramfs=all
 
 #
 # backup_initramfs [ yes | no ]
@@ -145,13 +238,13 @@ 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-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
 
@@ -207,10 +300,10 @@ 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
-# COMPRESSLEVEL=3
+# 1...9 for gzip|bzip2|lzma|lzop
+# 0...9 for  lz4|xz
+# 0...19 for zstd
+COMPRESSLEVEL=16
 
 #
 # DEVICE: ...
@@ -250,45 +343,115 @@ 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-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 -e
 
+printf "\e[95mStarting: [0001_initramfs_modules.chroot] \n\e[0m"
+
 PREREQ=""
-prereqs() { echo "$PREREQ"; }
-case $1 in
+prereqs() { echo "${PREREQ}"; }
+# shellcheck disable=SC2249
+case "${1}" in
   prereqs) prereqs; exit 0 ;;
 esac
 
 . /usr/share/initramfs-tools/hook-functions
 
-mkdir -p "${DESTDIR}/bin" "${DESTDIR}/usr/bin" "${DESTDIR}/usr/local/bin"
 
-# Include Bash
-copy_exec /usr/bin/bash /usr/bin
+### Ensure directory structure in initramfs
+mkdir -p "${DESTDIR}/usr/bin"
+mkdir -p "${DESTDIR}/etc/keys"
+mkdir -p "${DESTDIR}/usr/local/bin"
+mkdir -p "${DESTDIR}/etc/initramfs-tools/conf.d"
+mkdir -p "${DESTDIR}/etc/initramfs-tools/scripts/init-premount"
+mkdir -p "${DESTDIR}/usr/sbin"
 
-# Include lsblk (block device information tool)
-copy_exec /usr/bin/lsblk /usr/bin
 
-# Include udevadm (udev management tool)
-copy_exec /usr/bin/udevadm /usr/bin
+### Include bash
+copy_exec /usr/bin/bash /usr/bin/bash
+printf "\e[92mSuccessfully executed: [copy_exec /usr/bin/bash /usr/bin/bash] \n\e[0m"
+
+
+### Include blkid
+copy_exec /usr/sbin/blkid /usr/sbin/blkid
+printf "\e[92mSuccessfully executed: [copy_exec /usr/sbin/blkid /usr/sbin/blkid] \n\e[0m"
+
+
+### Include busybox
+copy_exec /usr/bin/busybox /usr/busybox
+printf "\e[92mSuccessfully executed: [copy_exec /usr/bin/busybox /usr/busybox] \n\e[0m"
+
+
+### Include GNU coreutils 'sort' (has -V)
+copy_exec /usr/bin/sort /usr/bin/sort
+printf "\e[92mSuccessfully executed: [copy_exec /usr/bin/sort /usr/bin/sort] \n\e[0m"
+
+
+### Include gpgv
+copy_exec /usr/bin/gpgv /usr/bin/gpgv
+printf "\e[92mSuccessfully executed: [copy_exec /usr/bin/gpgv /usr/bin/gpgv] \n\e[0m"
+
+
+### Include lsblk
+copy_exec /usr/bin/lsblk /usr/bin/lsblk
+printf "\e[92mSuccessfully executed: [copy_exec /usr/bin/lsblk /usr/bin/lsblk] \n\e[0m"
+
+
+### Include mkpasswd
+copy_exec /usr/bin/mkpasswd /usr/mkpasswd
+printf "\e[92mSuccessfully executed: [copy_exec /usr/bin/mkpasswd /usr/mkpasswd] \n\e[0m"
+copy_exec /usr/bin/mkpasswd /usr/bin/mkpasswd
+printf "\e[92mSuccessfully executed: [copy_exec /usr/bin/mkpasswd /usr/bin/mkpasswd] \n\e[0m"
+
+
+### Include udevadm (udev management tool)
+copy_exec /usr/bin/udevadm /usr/bin/udevadm
+printf "\e[92mSuccessfully executed: [copy_exec /usr/bin/udevadm /usr/bin/udevadm] \n\e[0m"
+
+
+### Include sha384sum, sha512sum
+copy_exec /usr/bin/sha384sum /usr/bin/sha384sum
+printf "\e[92mSuccessfully executed: [copy_exec /usr/bin/sha384sum /usr/bin/sha384sum ] \n\e[0m"
+copy_exec /usr/bin/sha512sum /usr/bin/sha512sum
+printf "\e[92mSuccessfully executed: [copy_exec /usr/bin/sha512sum /usr/bin/sha512sum] \n\e[0m"
+
+
+### Include tree
+copy_exec /usr/bin/tree /usr/bin/tree
+printf "\e[92mSuccessfully executed: [copy_exec /usr/bin/tree /usr/bin/tree] \n\e[0m"
+
+
+### Include whois
+copy_exec /usr/bin/whois /usr/bin/whois
+printf "\e[92mSuccessfully executed: [copy_exec /usr/bin/whois /usr/bin/whois] \n\e[0m"
+
+
+### Link busybox applets for compatibility
+for dir in bin usr/bin; do
+  ln -sf busybox "${DESTDIR}/${dir}/cat"
+  ln -sf busybox "${DESTDIR}/${dir}/sleep"
+done
+
+printf "\e[92mSuccessfully executed: [0001_initramfs_modules.chroot] \n\e[0m"
+
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh
 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-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)"
@@ -23,24 +22,25 @@ fi
 
 cat << 'EOF' >| "${src}"
 #!/bin/sh
+# bashsupport disable=BP5007
+
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-CreationInfo: 2025-10-28; 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.hardened.installer framework.
+# SPDX-License-Identifier: GPL-3.0-or-later
+# 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
 
-### Changed version of https://salsa.debian.org/live-team/live-boot 'components/0030-verify-checksums'
-### In case of successful verification of the offered checksums, proceed with booting, else panic.
-
-### Inside 0002_verify_checksums.chroot ###
+### Modified Version of the original file:
+### https://salsa.debian.org/live-team/live-boot 'components/0030-verify-checksums'
+### In case of successful verification of one of the offered checksums, proceed with booting, else panic.
 
 #######################################
-# Live build ISO with the modified checksum verification script for continuing the boot process.
+# Modified checksum-verification script for continuing the boot process.
 # Globals:
 #   LIVE_BOOT_CMDLINE
 #   LIVE_VERIFY_CHECKSUMS
@@ -53,30 +53,40 @@ cat << 'EOF' >| "${src}"
 #   _RETURN
 #   _TTY
 # Arguments:
-#   $1: ${_PARAMETER}
+#   1: ${_PARAMETER}
 # Returns:
 #   0 : Successful Verification
 #######################################
 Verify_checksums() {
   for _PARAMETER in ${LIVE_BOOT_CMDLINE}; do
+
     case "${_PARAMETER}" in
+
       live-boot.verify-checksums=* | verify-checksums=*)
+
         LIVE_VERIFY_CHECKSUMS="true"
         LIVE_VERIFY_CHECKSUMS_DIGESTS="${_PARAMETER#*verify-checksums=}"
         ;;
 
       live-boot.verify-checksums | verify-checksums)
+
         LIVE_VERIFY_CHECKSUMS="true"
         ;;
+
     esac
+
   done
 
   case "${LIVE_VERIFY_CHECKSUMS}" in
-    true) ;;
+
+    true)
+      :
+      ;;
 
     *)
       return 0
       ;;
+
   esac
 
   _MOUNTPOINT="${1}"
@@ -85,46 +95,65 @@ Verify_checksums() {
   _TTY="/dev/tty8"
 
   log_begin_msg "Verifying checksums"
+  printf "\n"
 
   # shellcheck disable=SC2164
   cd "${_MOUNTPOINT}"
 
+  # shellcheck disable=SC2001
   for _DIGEST in $(echo "${LIVE_VERIFY_CHECKSUMS_DIGESTS}" | sed -e 's|,| |g'); do
+
     # shellcheck disable=SC2060
     _CHECKSUMS="$(echo "${_DIGEST}" | tr [a-z] [A-Z])SUMS ${_DIGEST}sum.txt"
 
     for _CHECKSUM in ${_CHECKSUMS}; do
+
+      # shellcheck disable=SC2292
       if [ -e "${_CHECKSUM}" ]; then
-        echo "Found ${_CHECKSUM}..." > "${_TTY}"
+
+        #echo "Found ${_CHECKSUM}..." > "${_TTY}"
+        printf "Found %s...\n" "${_CHECKSUM}"
 
         if [ -e "/bin/${_DIGEST}sum" ]; then
-          echo "Checking ${_CHECKSUM}..." > "${_TTY}"
+
+          #echo "Checking ${_CHECKSUM}..." > "${_TTY}"
+          printf "Checking %s...\n" "${_CHECKSUM}"
 
           # Verify checksums
+          # shellcheck disable=SC2312
           grep -v '^#' "${_CHECKSUM}" | /bin/"${_DIGEST}"sum -c > "${_TTY}"
           _RETURN="${?}"
 
           # Stop after the first verification
           # break 2
+
         else
-          echo "Not found /bin/${_DIGEST}sum..." > "${_TTY}"
+
+          #echo "Not found /bin/${_DIGEST}sum..." > "${_TTY}"
+          printf "Not found /bin/%ssum....\n" "${_DIGEST}"
+
         fi
+
       fi
+
     done
+
   done
 
   log_end_msg
 
   case "${_RETURN}" in
+
     0)
-      log_success_msg "Verification sha512 sha384 sha256 successful, continuing booting in 10 seconds."
-      sleep 10
+      log_success_msg "Verification of checksums successful; continuing booting in 8 seconds."
+      sleep 8
       return 0
       ;;
 
     *)
-      panic "Verification failed, $(basename ${_TTY}) for more information."
+      panic "Verification failed, $(basename "${_TTY}") for more information."
       ;;
+
   esac
 }
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh
@@ -138,7 +167,6 @@ 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/0003_cdi_autostart.chroot

@@ -0,0 +1,52 @@
+#!/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" "${0}"
+
+if [[ -f /root/.cdi ]]; then
+
+  cat << EOF >| /etc/systemd/system/cdi-starter.service
+[Unit]
+Description=CISS CDI post-boot starter
+Documentation=https://git.coresecret.dev/msw/CISS.debian.live.builder.git
+ConditionPathIsExecutable=/usr/local/sbin/9999-cdi-starter.sh
+After=live-config.service systemd-user-sessions.service getty.target
+After=network-online.target NetworkManager-wait-online.service systemd-networkd-wait-online.service
+Wants=network-online.target
+
+[Service]
+Type=idle
+ExecStart=/usr/local/sbin/9999-cdi-starter.sh
+TimeoutStartSec=1min
+Nice=5
+IOSchedulingClass=best-effort
+Environment=LANG=C.UTF-8
+StandardOutput=journal
+StandardError=journal
+
+[Install]
+WantedBy=multi-user.target
+EOF
+
+  chmod 0644 /etc/systemd/system/cdi-starter.service
+
+  systemctl enable cdi-starter.service
+
+  rm -f /root/.cdi
+
+fi
+
+printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
+
+exit 0
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/0007_update_logrotate.chroot

@@ -0,0 +1,77 @@
+#!/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" "${0}"
+
+[[ -r /root/ciss_xdg_tmp.sh ]] && . /root/ciss_xdg_tmp.sh
+export DEBIAN_FRONTEND="noninteractive"
+
+rm -f         "/etc/logrotate.conf"
+cat << EOF >| "/etc/logrotate.conf"
+# See "man logrotate" for details. Global options do not affect preceding include directives.
+
+# Rotate log files daily
+daily
+
+# Keep 384 daily worth of backlogs.
+rotate 90
+
+# Hard cap: delete rotated logs older than 384 days.
+maxage 90
+
+# Do not rotate the log if it is empty (this overrides the ifempty option).
+notifempty
+
+# Create new (empty) log files after rotating old ones.
+create
+
+# Use date as a suffix of the rotated file.
+dateext
+
+# Use yesterday's instead of today's date to create the dateext extension, so that the rotated log file has a date in its name
+# that is the same as the timestamps within it.
+dateyesterday
+
+# Enable compression
+compress
+
+# Use zstd instead of gzip.
+compresscmd /usr/bin/zstd
+
+# File extension for compressed logs.
+compressext .zst
+
+# Set zstd level 3 (default).
+compressoptions -20
+
+# How to decompress for 'logrotate -d' or similar.
+uncompresscmd /usr/bin/unzstd
+
+# Keep the most recent rotation uncompressed for one cycle.
+delaycompress
+
+# Delete log files using shred -u instead of unlink().
+shred
+
+# packages drop log rotation information into this directory
+include /etc/logrotate.d
+
+# system-specific logs may also be configured here.
+
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf
+EOF
+
+printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
+
+exit 0
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/0010_install_apparmor.chroot

@@ -0,0 +1,35 @@
+#!/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" "${0}"
+
+[[ -r /root/ciss_xdg_tmp.sh ]] && . /root/ciss_xdg_tmp.sh
+export DEBIAN_FRONTEND="noninteractive"
+apt-get install -y --no-install-recommends apparmor apparmor-utils apparmor-profiles apparmor-profiles-extra
+
+install -d /etc/systemd/system/apparmor.service.d
+cat << EOF >| /etc/systemd/system/apparmor.service.d/10-live-force.conf
+[Unit]
+### Drop any negative live conditions that would skip AppArmor on overlay.
+ConditionPathExists=
+
+### Ensure we only rely on the security=apparmor condition.
+ConditionSecurity=apparmor
+EOF
+
+install -d -m 0755 /var/cache/apparmor
+
+printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${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-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

@@ -1,6 +1,6 @@
 #!/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>
@@ -9,10 +9,9 @@
 # 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"
@@ -22,10 +21,11 @@ XKBOPTIONS=""
 BACKSPACE="guess"
 EOF
 
+[[ -r /root/ciss_xdg_tmp.sh ]] && . /root/ciss_xdg_tmp.sh
+export DEBIAN_FRONTEND="noninteractive"
 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_jitterentropy.chroot

@@ -1,6 +1,6 @@
 #!/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>
@@ -9,34 +9,25 @@
 # 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
+[[ -r /root/ciss_xdg_tmp.sh ]] && . /root/ciss_xdg_tmp.sh
+export DEBIAN_FRONTEND="noninteractive"
+apt-get install -y --no-install-recommends jitterentropy-rngd
 
 cd /root
-cat << 'EOF' >| /etc/default/haveged
-# Configuration file for haveged
 
-# Options to pass to haveged:
-DAEMON_ARGS="-w 2048 -v 1"
+mkdir -p /etc/systemd/system/jitterentropy-rngd.service.d
+
+cat << 'EOF' >> /etc/systemd/system/jitterentropy-rngd.service.d/override.conf
+[Service]
+ExecStart=
+ExecStart=/usr/sbin/jitterentropy-rngd --osr=2
 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

@@ -1,6 +1,6 @@
 #!/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>
@@ -9,10 +9,9 @@
 # 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
 
 mv /etc/hostname /root/.ciss/dlb/backup/hostname.bak
 mv /etc/mailname /root/.ciss/dlb/backup/mailname.bak
@@ -28,7 +27,6 @@ localhost.local
 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/0130_machineid.chroot

@@ -1,6 +1,6 @@
 #!/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>
@@ -9,10 +9,9 @@
 # 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
 if [[ -f /var/lib/dbus/machine-id ]]; then
@@ -22,7 +21,7 @@ fi
 cat << 'EOF' >| /var/lib/dbus/machine-id
 b08dfa6083e7567a1921a715000001fb
 EOF
-chmod 644 /var/lib/dbus/machine-id
+chmod 0644 /var/lib/dbus/machine-id
 
 if [[ -f /etc/machine-id ]]; then
   rm /etc/machine-id
@@ -34,7 +33,6 @@ EOF
 chmod 644 /etc/machine-id
 
 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/0400_eza_install.chroot

@@ -1,6 +1,6 @@
 #!/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>
@@ -9,10 +9,9 @@
 # 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 +23,9 @@ 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
+[[ -r /root/ciss_xdg_tmp.sh ]] && . /root/ciss_xdg_tmp.sh
+export DEBIAN_FRONTEND="noninteractive"
+apt-get update -qq
 apt-get install -y eza
 
 git clone https://github.com/eza-community/eza-themes.git
@@ -145,10 +146,7 @@ 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

@@ -1,6 +1,6 @@
 #!/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>
@@ -9,20 +9,20 @@
 # 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
+[[ -r /root/ciss_xdg_tmp.sh ]] && . /root/ciss_xdg_tmp.sh
+export DEBIAN_FRONTEND="noninteractive"
+apt-get update -qq
 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

@@ -1,6 +1,6 @@
 #!/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>
@@ -9,20 +9,35 @@
 # 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
+
+[[ -r /root/ciss_xdg_tmp.sh ]] && . /root/ciss_xdg_tmp.sh
+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 +51,14 @@ 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 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 ntp0.fau.de 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 +68,52 @@ 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
+
+chronyd -Q -f /etc/chrony/chrony.conf 2>&1
 
 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

@@ -1,6 +1,6 @@
 #!/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>
@@ -9,16 +9,14 @@
 # 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

@@ -1,6 +1,6 @@
 #!/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>
@@ -9,10 +9,9 @@
 # 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"
@@ -21,12 +20,12 @@ cat << 'EOF' >| "${target_script}"
 @reboot root /usr/local/bin/restart-ssh.sh
 EOF
 
-chmod 644 "${target_script}"
+chmod 0444 "${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>
@@ -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

@@ -1,6 +1,6 @@
 #!/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>
@@ -9,16 +9,14 @@
 # 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

@@ -1,6 +1,6 @@
 #!/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>
@@ -9,16 +9,14 @@
 # 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

@@ -1,6 +1,6 @@
 #!/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>
@@ -9,16 +9,14 @@
 # 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

@@ -1,6 +1,6 @@
 #!/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>
@@ -9,12 +9,12 @@
 # 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
+[[ -r /root/ciss_xdg_tmp.sh ]] && . /root/ciss_xdg_tmp.sh
+export DEBIAN_FRONTEND="noninteractive"
 curl -fsSL https://deb.nodesource.com/setup_22.x | sudo -E bash - && \
 apt-get install -y nodejs
 
@@ -22,7 +22,6 @@ 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

@@ -1,6 +1,6 @@
 #!/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>
@@ -9,16 +9,14 @@
 # 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/hardenedlinux/harbian-audit.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/0850_ssh_audit.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-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
 
 cd /root/git
 git clone https://github.com/jtesta/ssh-audit.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/0855_dnsviz.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-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
 
 cd /root/git
 git clone https://github.com/dnsviz/dnsviz.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/0860_sops.chroot

@@ -0,0 +1,64 @@
+#!/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" "${0}"
+
+[[ -r /root/ciss_xdg_tmp.sh ]] && . /root/ciss_xdg_tmp.sh
+export DEBIAN_FRONTEND="noninteractive"
+
+SOPS_VER="v3.11.0"
+ARCH="$(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"
+
+umask 0077
+
+mkdir -p /root/.config/sops/age
+
+cat << 'EOF' >| /root/.config/sops/age/keys.txt
+{{ secrets.CISS_PHYS_AGE }}
+EOF
+
+chmod 0400 /root/.config/sops/age/keys.txt
+
+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/0865_yq.chroot

@@ -1,6 +1,6 @@
 #!/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>
@@ -9,19 +9,18 @@
 # 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
+[[ -r /root/ciss_xdg_tmp.sh ]] && . /root/ciss_xdg_tmp.sh
+export DEBIAN_FRONTEND="noninteractive"
 
-mkdir -p /root/git
-chmod 0700 /root/git
+wget https://github.com/mikefarah/yq/releases/latest/download/yq_linux_amd64 -O /usr/local/bin/yq && chmod +x /usr/local/bin/yq
+
+yq --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/0900_ufw_setup.chroot

@@ -1,6 +1,6 @@
 #!/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>
@@ -9,13 +9,12 @@
 # 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 -r UFW_OUT_POLICY="deny"
-declare -r SSHPORT="MUST_BE_SET"
+declare -r SSHPORT="SSHPORT_MUST_BE_SET"
 
 ufw --force reset
 
@@ -51,6 +50,7 @@ if [[ ${UFW_OUT_POLICY,,} == "deny"  ]]; then
   ufw allow out  853/udp comment 'Outgoing DoQ'
 fi
 
+### Allowing ICMP IPv4 outgoing per default.
 sed -i "/# ok icmp code for FORWARD/i \# ok icmp codes for OUTPUT" /etc/ufw/before.rules
 sed -i "/# ok icmp code for FORWARD/i \-A ufw-before-output -p icmp --icmp-type destination-unreachable -j ACCEPT" /etc/ufw/before.rules
 sed -i "/# ok icmp code for FORWARD/i \-A ufw-before-output -p icmp --icmp-type time-exceeded -j ACCEPT" /etc/ufw/before.rules
@@ -61,7 +61,6 @@ sed -i 's/^ENABLED=no/ENABLED=yes/' /etc/ufw/ufw.conf
 ln -sf /lib/systemd/system/ufw.service /etc/systemd/system/multi-user.target.wants/ufw.service
 
 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/9900_process_accounting.chroot

@@ -1,33 +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-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
 
+[[ -r /root/ciss_xdg_tmp.sh ]] && . /root/ciss_xdg_tmp.sh
+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-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

@@ -1,6 +1,6 @@
 #!/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>
@@ -9,10 +9,9 @@
 # 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

@@ -1,6 +1,6 @@
 #!/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>
@@ -9,17 +9,18 @@
 # 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

@@ -1,6 +1,6 @@
 #!/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>
@@ -9,18 +9,23 @@
 # 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

@@ -1,148 +0,0 @@
-#!/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
-set -C -e -u -o pipefail
-
-printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
-# sleep 1
-
-cd /root
-
-cp -u /etc/fail2ban/fail2ban.conf /root/.ciss/dlb/backup/fail2ban.conf.bak
-chmod 0644 /root/.ciss/dlb/backup/fail2ban.conf.bak
-
-### https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1024305
-sed -i 's/#allowipv6 = auto/allowipv6 = auto/1' /etc/fail2ban/fail2ban.conf
-
-mv /etc/fail2ban/jail.d/defaults-debian.conf /root/.ciss/dlb/backup/defaults-debian.conf.bak
-chmod 0644 /root/.ciss/dlb/backup/defaults-debian.conf.bak
-
-cat << 'EOF' >| /etc/fail2ban/jail.d/centurion-default.conf
-# SPDX-Version: 3.0
-# 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-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-Security-Contact: security@coresecret.eu
-
-[DEFAULT]
-usedns    = yes
-# local | vpn
-ignoreip  = 127.0.0.0/8 ::1 MUST_BE_SET
-maxretry  = 8
-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]
-
-[sshd]
-enabled   = true
-backend   = systemd
-filter    = sshd
-mode      = normal
-port      = MUST_BE_SET
-protocol  = tcp
-logpath   = /var/log/auth.log
-maxretry  = 4
-findtime  = 24h
-bantime   = 24h
-
-[sshd-refused]
-enabled   = true
-filter    = sshd-refused
-port      = MUST_BE_SET
-protocol  = tcp
-logpath   = /var/log/auth.log
-maxretry  = 1
-findtime  = 24h
-bantime   = 24h
-
-# ufw aggressive approach:
-# Any valid client communicating with our server should be going directly to the service ports opened in ufw (ssh, 80, 443, ...).
-# Any client touching other ports is treated as malicious and therefore should be blocked access to ALL ports after one attempt.
-
-[ufw]
-enabled   = true
-filter    = ufw.aggressive
-action    = iptables-allports
-logpath   = /var/log/ufw.log
-maxretry  = 1
-findtime  = 24h
-bantime   = 24h
-protocol  = tcp,udp
-
-EOF
-
-cat << EOF >| /etc/fail2ban/filter.d/ufw.aggressive.conf
-[Definition]
-failregex = ^.*UFW BLOCK.* SRC=<HOST> .*DPT=\d+ .*
-EOF
-
-cat << EOF >| /etc/fail2ban/filter.d/sshd-refused.conf
-[Definition]
-failregex = ^refused connect from \S+ \(<HOST>\)
-EOF
-
-###########################################################################################
-# Remarks: hardening of fail2ban systemd                                                  #
-###########################################################################################
-# https://wiki.archlinux.org/title/fail2ban#Service_hardening                             #
-# The CapabilityBoundingSet parameters CAP_DAC_READ_SEARCH will allow Fail2ban full read  #
-# access to every directory and file. CAP_NET_ADMIN and CAP_NET_RAW allow Fail2ban to     #
-# operate # on any firewall that has a command-line shell interface. By using             #
-# ProtectSystem=strict the filesystem hierarchy will only be read-only; ReadWritePaths    #
-# allows Fail2ban to have write access on required paths.                                 #
-###########################################################################################
-mkdir -p /etc/systemd/system/fail2ban.service.d
-mkdir /var/log/fail2ban
-
-cat << 'EOF' >| /etc/systemd/system/fail2ban.service.d/override.conf
-[Service]
-PrivateDevices=yes
-PrivateTmp=yes
-ProtectHome=read-only
-ProtectSystem=strict
-ReadWritePaths=-/var/run/fail2ban
-ReadWritePaths=-/var/lib/fail2ban
-ReadWritePaths=-/var/log/fail2ban
-ReadWritePaths=-/var/spool/postfix/maildrop
-ReadWritePaths=-/run/xtables.lock
-CapabilityBoundingSet=CAP_AUDIT_READ CAP_DAC_READ_SEARCH CAP_NET_ADMIN CAP_NET_RAW
-
-### Added by CISS.debian.live.builder
-ProtectClock=true
-ProtectHostname=true
-
-EOF
-
-cat << 'EOF' >> /etc/fail2ban/fail2ban.local
-[Definition]
-logtarget = /var/log/fail2ban/fail2ban.log
-EOF
-
-###########################################################################################
-# Remarks: Logrotate must be updated either                                               #
-###########################################################################################
-cp -a /etc/logrotate.d/fail2ban /root/.ciss/dlb/backup/fail2ban_logrotate.bak
-sed -i 's/\/var\/log\/fail2ban.log/\/var\/log\/fail2ban\/fail2ban.log/1' /etc/logrotate.d/fail2ban
-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/9950_hardening_fail2ban.chroot

@@ -0,0 +1,241 @@
+#!/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 /root
+
+cp -u /etc/fail2ban/fail2ban.conf /root/.ciss/dlb/backup/fail2ban.conf.bak
+chmod 0400 /root/.ciss/dlb/backup/fail2ban.conf.bak
+
+### https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1024305
+sed -i 's/#allowipv6 = auto/allowipv6 = auto/1' /etc/fail2ban/fail2ban.conf
+
+mv /etc/fail2ban/jail.d/defaults-debian.conf /root/.ciss/dlb/backup/defaults-debian.conf.bak
+chmod 0400 /root/.ciss/dlb/backup/defaults-debian.conf.bak
+
+cat << EOF >| /etc/fail2ban/jail.d/ciss-default.conf
+# SPDX-Version: 3.0
+# 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-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
+
+[DEFAULT]
+banaction             = nftables-multiport
+banaction_allports    = nftables-allports
+dbpurgeage            = 384d
+#                       127.0.0.1/8 - IPv4 loopback range (local host)
+#                       ::1/128     - IPv6 loopback
+#                       fe80::/10   - IPv6 link-local (on-link only; NDP/RA/DAD)
+#                       ff00::/8    - IPv6 multicast (not an unicast host)
+#                       ::/128      - IPv6 unspecified (all zeros; never a real peer)
+ignoreip              = 127.0.0.1/8 ::1/128 fe80::/10 ff00::/8 ::/128 IGNORE_IP_MUST_BE_SET
+usedns		            = yes
+
+[recidive]
+enabled               = true
+banaction             = nftables[type=custom, family=inet, table=f2b-table, chain=f2b-chain, blocktype=drop]
+bantime               = 8d
+bantime.increment     = true
+bantime.factor        = 1
+bantime.maxtime       = 128d
+bantime.multipliers   = 1 2 4 8 16
+bantime.overalljails  = true
+bantime.rndtime       = 877s
+filter                = recidive
+findtime              = 16d
+logpath               = /var/log/fail2ban/fail2ban.log*
+maxretry              = 3
+
+### 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]
+
+[sshd]
+enabled               = true
+backend               = systemd
+bantime               = 1h
+bantime.increment     = true
+bantime.factor        = 1
+bantime.maxtime       = 16d
+bantime.multipliers   = 1 2 4 8 16 32 64 128 256 384
+bantime.overalljails  = true
+bantime.rndtime       = 877s
+filter                = sshd
+findtime              = 16m
+maxretry              = 4
+mode                  = aggressive
+port                  = PORT_MUST_BE_SET
+protocol              = tcp
+
+[sshd-refused]
+enabled               = true
+bantime               = 1h
+bantime.increment     = true
+bantime.factor        = 1
+bantime.maxtime       = 16d
+bantime.multipliers   = 1 2 4 8 16 32 64 128 256 384
+bantime.overalljails  = true
+bantime.rndtime       = 877s
+filter                = ciss-sshd-refused
+findtime              = 16m
+logpath               = /var/log/auth.log
+maxretry              = 1
+port                  = PORT_MUST_BE_SET
+protocol              = tcp
+
+#
+# CISS aggressive approach:
+# Any valid client communicating with our server should be going directly to the service ports opened in ufw (ssh, 80, ...).
+# Any client touching other ports is treated as malicious and therefore should be blocked access to ALL ports after 1 attempt.
+#
+
+[ufw]
+enabled               = true
+banaction             = nftables[type=custom, family=inet, table=f2b-table, chain=f2b-chain, blocktype=drop]
+bantime               = 1h
+bantime.increment     = true
+bantime.factor        = 1
+bantime.maxtime       = 16d
+bantime.multipliers   = 1 2 4 8 16 32 64 128 256 384
+bantime.overalljails  = true
+bantime.rndtime       = 877s
+filter                = ciss-ufw
+findtime              = 16m
+logpath               = /var/log/ufw.log
+maxretry              = 1
+
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf
+EOF
+
+cat << EOF >| /etc/fail2ban/filter.d/ciss-ufw.conf
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-10-18; 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
+
+[Definition]
+# Match UFW BLOCK/REJECT with a source IP and *any* port field (SPT or DPT), protocol may be missing.
+failregex             = ^.*UFW (?:BLOCK|REJECT).*?\bSRC=<HOST>\b.*?(?:\bDPT=\d+\b|\bSPT=\d+\b).*$
+ignoreregex           =
+
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf
+EOF
+
+cat << 'EOF' >| /etc/fail2ban/filter.d/ciss-sshd-refused.conf
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-10-18; 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
+
+[Definition]
+failregex = ^refused connect from \S+ \(<HOST>\)
+
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf
+EOF
+
+###########################################################################################
+# Remarks: hardening of fail2ban systemd                                                  #
+###########################################################################################
+# https://wiki.archlinux.org/title/fail2ban#Service_hardening                             #
+# The CapabilityBoundingSet parameters CAP_DAC_READ_SEARCH will allow Fail2ban full read  #
+# access to every directory and file. CAP_NET_ADMIN and CAP_NET_RAW allow Fail2ban to     #
+# operate # on any firewall that has a command-line shell interface. By using             #
+# ProtectSystem=strict the filesystem hierarchy will only be read-only; ReadWritePaths    #
+# allows Fail2ban to have write access on required paths.                                 #
+###########################################################################################
+mkdir -p /etc/systemd/system/fail2ban.service.d
+mkdir -p /var/log/fail2ban
+
+cat << 'EOF' >| /etc/systemd/system/fail2ban.service.d/override.conf
+[Service]
+PrivateDevices=yes
+PrivateTmp=yes
+ProtectHome=read-only
+ProtectSystem=strict
+ReadWritePaths=-/var/run/fail2ban
+ReadWritePaths=-/var/lib/fail2ban
+ReadWritePaths=-/var/log/fail2ban
+ReadWritePaths=-/var/spool/postfix/maildrop
+ReadWritePaths=-/run/xtables.lock
+CapabilityBoundingSet=CAP_AUDIT_READ CAP_DAC_READ_SEARCH CAP_NET_ADMIN CAP_NET_RAW
+
+### Added by CISS.debian.live.builder
+ProtectClock=true
+ProtectHostname=true
+
+EOF
+
+cat << 'EOF' >> /etc/fail2ban/fail2ban.local
+[Definition]
+logtarget             = /var/log/fail2ban/fail2ban.log
+
+[Database]
+# Keep entries for at least 384 days to cover recidive findtime.
+dbpurgeage            = 384d
+EOF
+
+###########################################################################################
+# Remarks: Logrotate must be updated either                                               #
+###########################################################################################
+cp -a /etc/logrotate.d/fail2ban /root/.ciss/dlb/backup/fail2ban_logrotate.bak
+cat << EOF >| /etc/logrotate.d/fail2ban
+/var/log/fail2ban/fail2ban.log {
+    daily
+    rotate 384
+    maxage 384
+    notifempty
+    dateext
+    dateyesterday
+    compress
+    compresscmd /usr/bin/zstd
+    compressext .zst
+    compressoptions -20
+    uncompresscmd /usr/bin/unzstd
+    delaycompress
+    shred
+    missingok
+    postrotate
+        fail2ban-client flushlogs 1>/dev/null
+    endscript
+    # If fail2ban runs as non-root it still needs to have write access
+    # to logfiles.
+    # create 640 fail2ban adm
+    create 640 root adm
+}
+EOF
+
+touch /var/log/fail2ban/fail2ban.log
+chmod 0640 /var/log/fail2ban/fail2ban.log
+
+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/9960_disable_services.chroot

@@ -1,6 +1,6 @@
 #!/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>
@@ -9,10 +9,9 @@
 # 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

@@ -1,6 +1,6 @@
 #!/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>
@@ -9,24 +9,23 @@
 # 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
+
+[[ -r /root/ciss_xdg_tmp.sh ]] && . /root/ciss_xdg_tmp.sh
+export DEBIAN_FRONTEND="noninteractive"
 
 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 -qq
 apt-get upgrade -y
 
 if [[ -d /etc/exim4 ]]; then
@@ -34,7 +33,6 @@ 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

@@ -1,6 +1,6 @@
 #!/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>
@@ -9,37 +9,38 @@
 # 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
 
+[[ -r /root/ciss_xdg_tmp.sh ]] && . /root/ciss_xdg_tmp.sh
+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

@@ -1,6 +1,6 @@
 #!/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>
@@ -9,10 +9,9 @@
 # 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

@@ -1,6 +1,6 @@
 #!/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>
@@ -9,39 +9,46 @@
 # 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
+[[ -r /root/ciss_xdg_tmp.sh ]] && . /root/ciss_xdg_tmp.sh
 
-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
+export DEBIAN_FRONTEND="noninteractive"
 
-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 update -qq
 
-dpkg --get-selections | grep deinstall >> /tmp/deinstall.log || true
+apt-get purge -y exim4 exim4-daemon-light exim4-base exim4-config postfix-mta-sts-resolver postfix qemu-guest-agent rmail
+
+apt-mark hold exim4 exim4-daemon-light exim4-base exim4-config postfix-mta-sts-resolver postfix 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 +59,7 @@ 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

@@ -1,6 +1,6 @@
 #!/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>
@@ -9,10 +9,9 @@
 # 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
@@ -39,7 +38,7 @@ EOF
 
 cp -a /etc/login.defs /root/.ciss/dlb/backup/login.defs.bak
 
-sed -i 's/LOGIN_TIMEOUT       60/LOGIN_TIMEOUT       180/' /etc/login.defs
+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
@@ -55,8 +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
@@ -99,8 +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-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 +1,36 @@
 #!/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-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
 
+[[ -r /root/ciss_xdg_tmp.sh ]] && . /root/ciss_xdg_tmp.sh
+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 > /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

@@ -1,35 +1,37 @@
 #!/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-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
 
-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-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
 
@@ -51,7 +53,7 @@ difok = 4
 ### 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)
@@ -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-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

@@ -1,47 +1,72 @@
 #!/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-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
+[[ -r /root/ciss_xdg_tmp.sh ]] && . /root/ciss_xdg_tmp.sh
+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
 cp -u /etc/audit/rules.d/audit.rules /root/.ciss/dlb/backup/rules_d_audit.rules.bak
 rm -rf /etc/audit/rules.d/audit.rules
 
-############################################################### /etc/audit/rules.d/10-base-config.rules
-cat << EOF >| /etc/audit/rules.d/10-base-config.rules
+############################################################### /etc/audit/rules.d/00-base-config.rules
+cat << EOF >| /etc/audit/rules.d/00-base-config.rules
 ## First rule - delete all
 -D
 
 ## Increase the buffers to survive stress events.
-## Make this bigger for busy systems
--b 8192
+## Make this bigger for busy systems.
+-b 16384
 
-## This determine how long to wait in burst of events
---backlog_wait_time 60000
+## Rate Limit. Cap kernel->userspace message rate (0 = unlimited).
+-r 200
 
-## Set failure mode to syslog
+## This determine how long to wait in burst of events. How long to wait in bursts (us).
+--backlog_wait_time 1024
+
+## Set failure mode to syslog.
 -f 1
 EOF
 
+############################################################### /etc/audit/rules.d/10-ciss-noise-floor.rules
+cat << EOF >| /etc/audit/rules.d/10-ciss-noise-floor.rules
+## Ignore kernel/daemon noise without a loginuid (unset = 4294967295).
+-a never,exit -F auid=4294967295
+
+## Make privileged exec tracing user-initiated only (no boot-time daemons).
+-a always,exit -F arch=b64 -S execve -F euid=0 -F auid>=1000 -F auid!=-1 -k exec_root
+-a always,exit -F arch=b32 -S execve -F euid=0 -F auid>=1000 -F auid!=-1 -k exec_root
+
+## (Optional, same principle for suid/sgid transitions).
+-a always,exit -F arch=b64 -S execve -C uid!=euid -F auid>=1000 -F auid!=-1 -k exec_suid_sgid
+-a always,exit -F arch=b32 -S execve -C uid!=euid -F auid>=1000 -F auid!=-1 -k exec_suid_sgid
+EOF
+
 ############################################################### /etc/audit/rules.d/11-loginuid.rules
 cat << EOF >| /etc/audit/rules.d/11-loginuid.rules
 --loginuid-immutable
@@ -50,13 +75,18 @@ 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 +105,19 @@ 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/25-ciss-exec.rules
+cat << EOF >| /etc/audit/rules.d/25-ciss-exec.rules
+## Focus on privileged exec, not every user command
+-a always,exit -F arch=b64 -S execve -F euid=0 -k exec_root
+-a always,exit -F arch=b32 -S execve -F euid=0 -k exec_root
+-a always,exit -F arch=b64 -S execve -F exe=/usr/bin/sudo -k exec_sudo
+-a always,exit -F arch=b32 -S execve -F exe=/usr/bin/sudo -k exec_sudo
+-a always,exit -F arch=b64 -S execve -C uid!=euid -k exec_suid_sgid
+-a always,exit -F arch=b32 -S execve -C uid!=euid -k exec_suid_sgid
 EOF
 
 ############################################################### /etc/audit/rules.d/30-ospp-v42-1-create-failed.rules
@@ -96,17 +137,6 @@ cat << EOF >| /etc/audit/rules.d/30-ospp-v42-1-create-failed.rules
 -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=unsuccessful-create
 EOF
 
-############################################################### /etc/audit/rules.d/30-ospp-v42-1-create-success.rules
-cat << EOF >| /etc/audit/rules.d/30-ospp-v42-1-create-success.rules
-## Successful file creation (open with O_CREAT)
--a always,exit -F arch=b32 -S openat,open_by_handle_at -F a2&0100 -F success=1 -F auid>=1000 -F auid!=unset -F key=successful-create
--a always,exit -F arch=b64 -S openat,open_by_handle_at -F a2&0100 -F success=1 -F auid>=1000 -F auid!=unset -F key=successful-create
--a always,exit -F arch=b32 -S open -F a1&0100 -F success=1 -F auid>=1000 -F auid!=unset -F key=successful-create
--a always,exit -F arch=b64 -S open -F a1&0100 -F success=1 -F auid>=1000 -F auid!=unset -F key=successful-create
--a always,exit -F arch=b32 -S creat -F success=1 -F auid>=1000 -F auid!=unset -F key=successful-create
--a always,exit -F arch=b64 -S creat -F success=1 -F auid>=1000 -F auid!=unset -F key=successful-create
-EOF
-
 ############################################################### /etc/audit/rules.d/30-ospp-v42-2-modify-failed.rules
 cat << EOF >| /etc/audit/rules.d/30-ospp-v42-2-modify-failed.rules
 ## Unsuccessful file modifications (open for write or truncate)
@@ -124,17 +154,6 @@ cat << EOF >| /etc/audit/rules.d/30-ospp-v42-2-modify-failed.rules
 -a always,exit -F arch=b64 -S truncate,ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=unsuccessful-modification
 EOF
 
-############################################################### /etc/audit/rules.d/30-ospp-v42-2-modify-success.rules
-cat << EOF >| /etc/audit/rules.d/30-ospp-v42-2-modify-success.rules
-## Successful file modifications (open for write or truncate)
--a always,exit -F arch=b32 -S openat,open_by_handle_at -F a2&01003 -F success=1 -F auid>=1000 -F auid!=unset -F key=successful-modification
--a always,exit -F arch=b64 -S openat,open_by_handle_at -F a2&01003 -F success=1 -F auid>=1000 -F auid!=unset -F key=successful-modification
--a always,exit -F arch=b32 -S open -F a1&01003 -F success=1 -F auid>=1000 -F auid!=unset -F key=successful-modification
--a always,exit -F arch=b64 -S open -F a1&01003 -F success=1 -F auid>=1000 -F auid!=unset -F key=successful-modification
--a always,exit -F arch=b32 -S truncate,ftruncate -F success=1 -F auid>=1000 -F auid!=unset -F key=successful-modification
--a always,exit -F arch=b64 -S truncate,ftruncate -F success=1 -F auid>=1000 -F auid!=unset -F key=successful-modification
-EOF
-
 ############################################################### /etc/audit/rules.d/30-ospp-v42-3-access-failed.rules
 cat << EOF >| /etc/audit/rules.d/30-ospp-v42-3-access-failed.rules
 ## Unsuccessful file access (any other opens) This has to go last.
@@ -144,14 +163,6 @@ cat << EOF >| /etc/audit/rules.d/30-ospp-v42-3-access-failed.rules
 -a always,exit -F arch=b64 -S open,openat,openat2,open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=unsuccessful-access
 EOF
 
-############################################################### /etc/audit/rules.d/30-ospp-v42-3-access-success.rules
-cat << EOF >| /etc/audit/rules.d/30-ospp-v42-3-access-success.rules
-## Successful file access (any other opens) This has to go last.
-## These next two are likely to result in a whole lot of events
--a always,exit -F arch=b32 -S open,openat,openat2,open_by_handle_at -F success=1 -F auid>=1000 -F auid!=unset -F key=successful-access
--a always,exit -F arch=b64 -S open,openat,openat2,open_by_handle_at -F success=1 -F auid>=1000 -F auid!=unset -F key=successful-access
-EOF
-
 ############################################################### /etc/audit/rules.d/30-ospp-v42-4-delete-failed.rules
 cat << EOF >| /etc/audit/rules.d/30-ospp-v42-4-delete-failed.rules
 ## Unsuccessful file delete
@@ -161,13 +172,6 @@ cat << EOF >| /etc/audit/rules.d/30-ospp-v42-4-delete-failed.rules
 -a always,exit -F arch=b64 -S unlink,unlinkat,rename,renameat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=unsuccessful-delete
 EOF
 
-############################################################### /etc/audit/rules.d/30-ospp-v42-4-delete-success.rules
-cat << EOF >| /etc/audit/rules.d/30-ospp-v42-4-delete-success.rules
-## Successful file delete
--a always,exit -F arch=b32 -S unlink,unlinkat,rename,renameat -F success=1 -F auid>=1000 -F auid!=unset -F key=successful-delete
--a always,exit -F arch=b64 -S unlink,unlinkat,rename,renameat -F success=1 -F auid>=1000 -F auid!=unset -F key=successful-delete
-EOF
-
 ############################################################### /etc/audit/rules.d/30-ospp-v42-5-perm-change-failed.rules
 cat << EOF >| /etc/audit/rules.d/30-ospp-v42-5-perm-change-failed.rules
 ## Unsuccessful permission change
@@ -177,13 +181,6 @@ cat << EOF >| /etc/audit/rules.d/30-ospp-v42-5-perm-change-failed.rules
 -a always,exit -F arch=b64 -S chmod,fchmod,fchmodat,setxattr,lsetxattr,fsetxattr,removexattr,lremovexattr,fremovexattr -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=unsuccessful-perm-change
 EOF
 
-############################################################### /etc/audit/rules.d/30-ospp-v42-5-perm-change-success.rules
-cat << EOF >| /etc/audit/rules.d/30-ospp-v42-5-perm-change-success.rules
-## Successful permission change
--a always,exit -F arch=b32 -S chmod,fchmod,fchmodat,setxattr,lsetxattr,fsetxattr,removexattr,lremovexattr,fremovexattr -F success=1 -F auid>=1000 -F auid!=unset -F key=successful-perm-change
--a always,exit -F arch=b64 -S chmod,fchmod,fchmodat,setxattr,lsetxattr,fsetxattr,removexattr,lremovexattr,fremovexattr -F success=1 -F auid>=1000 -F auid!=unset -F key=successful-perm-change
-EOF
-
 ############################################################### /etc/audit/rules.d/30-ospp-v42-6-owner-change-failed.rules
 cat << EOF >| /etc/audit/rules.d/30-ospp-v42-6-owner-change-failed.rules
 ## Unsuccessful ownership change
@@ -193,13 +190,6 @@ cat << EOF >| /etc/audit/rules.d/30-ospp-v42-6-owner-change-failed.rules
 -a always,exit -F arch=b64 -S lchown,fchown,chown,fchownat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=unsuccessful-owner-change
 EOF
 
-############################################################### /etc/audit/rules.d/30-ospp-v42-6-owner-change-success.rules
-cat << EOF >| /etc/audit/rules.d/30-ospp-v42-6-owner-change-success.rules
-## Successful ownership change
--a always,exit -F arch=b32 -S lchown,fchown,chown,fchownat -F success=1 -F auid>=1000 -F auid!=unset -F key=successful-owner-change
--a always,exit -F arch=b64 -S lchown,fchown,chown,fchownat -F success=1 -F auid>=1000 -F auid!=unset -F key=successful-owner-change
-EOF
-
 ############################################################### /etc/audit/rules.d/30-ospp-v42.rules
 cat << EOF >| /etc/audit/rules.d/30-ospp-v42.rules
 ## The purpose of these rules is to meet the requirements for Operating
@@ -325,8 +315,65 @@ 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

@@ -1,6 +1,6 @@
 #!/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>
@@ -9,28 +9,32 @@
 # 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
+[[ -r /root/ciss_xdg_tmp.sh ]] && . /root/ciss_xdg_tmp.sh
+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 > /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-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-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
@@ -53,7 +55,6 @@ deb-src https://deb.debian.org/debian/ bookworm-backports main contrib non-free
 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
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/9998_sources_list_trixie.chroot

@@ -0,0 +1,135 @@
+#!/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" "${0}"
+
+[[ -r /root/ciss_xdg_tmp.sh ]] && . /root/ciss_xdg_tmp.sh
+export DEBIAN_FRONTEND="noninteractive"
+
+# shellcheck disable=SC2155
+declare -r VAR_DATE="$(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: ${VAR_DATE}; WEIDNER, Marc S.; <cendev@coresecret.eu>
+# SPDX-ExternalRef: GIT https://cendev.eu/marc.weidner/CISS.2025.debian.live.builder.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <cendev@coresecret.eu>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.live.builder
+# SPDX-Security-Contact: security@coresecret.eu
+
+Types: deb deb-src
+URIs: https://deb.debian.org/debian/
+Suites: trixie-backports
+Components: main contrib non-free non-free-firmware
+Signed-By: /usr/share/keyrings/debian-archive-keyring.gpg
+
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf
+EOF
+fi
+
+apt-get update -qq
+apt-get dist-upgrade -y        # (= apt full-upgrade) allow installs/replacements/removals.
+apt-get autoremove --purge -y  # 'autopurge' == 'autoremove --purge'.
+apt-get clean -y               # Stronger than autoclean: removes the entire '.deb'-cache.
+
+printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
+
+exit 0
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/9999_interfaces_update.chroot

@@ -1,6 +1,6 @@
 #!/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>
@@ -9,17 +9,19 @@
 # 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>
@@ -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/hooks/live/9999_yyyy_logrotate.chroot

@@ -0,0 +1,66 @@
+#!/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" "${0}"
+
+### Declare Arrays, HashMaps, and Variables.
+declare -ar ary_logrotate=(
+  "alternatives"
+  "apt"
+  "btmp"
+  "chrony"
+  "clamav-daemon"
+  "clamav-freshclam"
+  "dpkg"
+  "fail2ban"
+  "rkhunter"
+  "rsnapshot"
+  "rsyslog"
+  "ufw"
+  "unattended-upgrades"
+  "usbguard"
+  "wtmp"
+)
+
+declare     var_file="" var_log=""
+[[ -r /root/ciss_xdg_tmp.sh ]] && . /root/ciss_xdg_tmp.sh
+export DEBIAN_FRONTEND="noninteractive"
+
+for var_log in "${ary_logrotate[@]}"; do
+
+  var_file="/etc/logrotate.d/${var_log}"
+
+  [[ -e "${var_file}" ]] || continue
+
+  ### Replace leading 'monthly'/'weekly' directives with 'daily', preserving indentation and trailing comments.
+  sed -E -i \
+    -e 's/^([[:space:]]*)(monthly|weekly)([[:space:]]*)(#.*)?$/\1daily\3\4/' \
+    -e 's/^([[:space:]]*)rotate([[:space:]]+[0-9]+)?([[:space:]]*)(#.*)?$/\1rotate 90\3\4/' \
+    "${var_file}"
+
+done
+
+if ! logrotate -d /etc/logrotate.conf; then
+
+  printf "\e[91m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ 'logrotate -d /etc/logrotate.conf' failed. \e[0m\n"
+
+else
+
+  printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ 'logrotate -d /etc/logrotate.conf' successful. \e[0m\n"
+
+fi
+
+printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
+
+exit 0
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/9999_zzzz.chroot

@@ -0,0 +1,81 @@
+#!/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" "${0}"
+
+declare var_dm="" var_unit_dir="" var_link="/etc/systemd/system/default.target"
+
+### Determine the canonical systemd unit dir inside chroot.
+if [[ -d /lib/systemd/system ]]; then
+
+  var_unit_dir=/lib/systemd/system
+
+elif [[ -d /usr/lib/systemd/system ]]; then
+
+  var_unit_dir=/usr/lib/systemd/system
+
+fi
+
+### Enforce 'default.target' -> 'multi-user.target' as a symlink.
+if [[ -e "${var_link}" ]] && [[ ! -L "${var_link}" ]]; then
+
+  ### A regular file here is wrong; we remove it to avoid vendor fallback to graphical.
+  rm -f -- "${var_link}"
+
+fi
+
+if [[ ! -L "${var_link}" ]]; then
+
+  ln -s "${var_unit_dir}/multi-user.target" "${var_link}"
+
+else
+
+  ### Ensure it points to multi-user.
+  # shellcheck disable=SC2312
+  if [[ "$(readlink -f "${var_link}")" != "${var_unit_dir}/multi-user.target" ]]; then
+
+    rm -f -- "${var_link}"
+    ln -s "${var_unit_dir}/multi-user.target" "${var_link}"
+
+  fi
+
+fi
+
+### Hard-block any display manager (mask via /dev/null symlink). Include common DMs, and the generic alias:
+ary_dm_units=(
+  "display-manager.service"
+  "gdm.service"
+  "gdm3.service"
+  "sddm.service"
+  "lightdm.service"
+  "xdm.service"
+  "lxdm.service"
+  "slim.service"
+)
+
+for var_dm in "${ary_dm_units[@]}"; do
+
+  if [[ ! -L "/etc/systemd/system/${var_dm}" ]]; then
+
+    ln -s /dev/null "/etc/systemd/system/${var_dm}"
+
+  fi
+
+done
+
+rm -f /root/ciss_xdg_tmp.sh
+
+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/normal/.keep

@@ -0,0 +1,10 @@
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-10-26; 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

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

@@ -5,7 +5,7 @@
 # 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

@@ -8,6 +8,7 @@
 # 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 +1,212 @@
+# 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
+UMASK 077
+
+# 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 redundancy
+UMASK 027
+SHA_CRYPT_MIN_ROUNDS 8388608
+SHA_CRYPT_MAX_ROUNDS 8388608
+
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf

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 V8.13.294.2025.10.28
+
+[git.coresecret.dev]:42842 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGQA107AVmg1D/jnyXiqbPf38zQRl8s3c+PM1zbfpeQl
+[git.coresecret.dev]:42842 ssh-rsa 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
+
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf

config/includes.chroot/etc/ssh/sshd_config

@@ -1,5 +1,5 @@
 # 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>
@@ -9,7 +9,7 @@
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-### Version Master V8.03.644.2025.06.07
+# Version Master V8.13.294.2025.10.28
 
 ### 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
@@ -28,15 +28,15 @@ LogLevel                     VERBOSE
 AddressFamily                any
 ListenAddress                0.0.0.0
 ListenAddress                ::
-Port MUST_BE_CHANGED
+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
@@ -46,12 +46,12 @@ StrictModes                  yes
 LoginGraceTime               2m
 MaxAuthTries                 3
 MaxSessions                  2
-### Begin randomly dropping new unauthenticated connections after the 8th attempt,
-### with a 64% chance to drop each additional connection, up to a hard limit of 16.
-MaxStartups                  08:64:16
+### Begin randomly dropping new unauthenticated connections after the 2nd attempt,
+### with a 64% chance to drop each additional connection, up to a hard limit of 08.
+MaxStartups                  02:64:08
 ### 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

@@ -9,7 +9,7 @@
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-### Version Master V8.03.644.2025.06.07
+# Version Master V8.13.294.2025.10.28
 
 ### https://docs.kernel.org/
 ### https://github.com/a13xp0p0v/kernel-hardening-checker/
@@ -280,15 +280,6 @@ net.ipv4.conf.all.forwarding=0
 net.ipv6.conf.all.accept_ra=0
 net.ipv6.conf.default.accept_ra=0
 
-###########################################################################################
-# These parameters relate to secure ICMP redirects. ICMP redirects are messages that a
-# router sends to a device to inform it that there is a better route for the data traffic.
-# This setting prevents the system from responding to redirects that have been spoofed by
-# potential attackers to redirect traffic (e.g., for man-in-the-middle attacks).
-###########################################################################################
-net.ipv4.conf.all.secure_redirects=1
-net.ipv4.conf.default.secure_redirects=1
-
 ###########################################################################################
 # This setting prevents the disclosure of TCP timestamps that can be used for system
 # fingerprinting:

config/includes.chroot/preseed/.iso/iso.sh

@@ -9,7 +9,7 @@
 # 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
 
 # The example names get mapped to their roles here
 declare timestamp

config/includes.chroot/preseed/.iso/preseed_hash_generator.sh

@@ -10,7 +10,7 @@
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-declare -gr VERSION="Master V8.03.644.2025.06.07"
+declare -gr VERSION="Master V8.13.294.2025.10.28"
 
 ### VERY EARLY CHECK FOR DEBUGGING
 if [[ $* == *" --debug "* ]]; then

config/includes.chroot/preseed/.lib/sshd_config.lib

@@ -5,8 +5,8 @@
 # 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
 
 Include /etc/ssh/sshd_config.d/*.conf
@@ -115,4 +115,4 @@ HostbasedAuthentication no
 # PermitUserEnvironment no
 # IgnoreUserKnownHosts no
 
-# 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.chroot/preseed/preseed.cfg

@@ -112,4 +112,4 @@ d-i preseed/late_command string sh /preseed/.ash/3_di_preseed_late_command.sh
 
 # Please consider donating to my work at: https://coresecret.eu/spenden/
 ###########################################################################################
-# Written by: ./preseed_hash_generator.sh Version: Master V8.03.644.2025.06.07 at: 10:18:37.9542
+# Written by: ./preseed_hash_generator.sh Version: Master V8.13.294.2025.10.28 at: 10:18:37.9542