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

@@ -21,7 +21,7 @@ usage() {
   clear
   cat << EOF
 $(echo -e "\e[92mCISS.debian.live.builder\e[0m")
-$(echo -e "\e[92mMaster V8.13.142.2025.10.14\e[0m")
+$(echo -e "\e[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")

.archive/generate_PRIVATE_trixie_1.yaml

@@ -0,0 +1,455 @@
+# 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 ${{ secrets.CISS_DLB_SSH_PORT_1 }} \
+            --ssh-pubkey /opt/config \
+            --trixie
+
+          REPO_ROOT="$(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/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 V8.13.142.2025.10.14"
+      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 V8.13.142.2025.10.14
+# Version Master V8.13.294.2025.10.28
 
 FROM debian:bookworm
 

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

@@ -9,7 +9,7 @@
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-# Version Master V8.13.142.2025.10.14
+# Version Master V8.13.294.2025.10.28
 
 name: 🔁 Render README.md to README.html.
 

.gitea/trigger/t_generate_PRIVATE_trixie_0.yaml

@@ -11,5 +11,5 @@
 
 build:
   counter: 1023
-  version: V8.13.142.2025.10.14
+  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

@@ -10,6 +10,6 @@
 # SPDX-Security-Contact: security@coresecret.eu
 
 build:
-  counter: 1023
+  counter: 1024
-  version: V8.13.142.2025.10.14
+  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: V8.13.142.2025.10.14
+  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: V8.13.142.2025.10.14
+  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

@@ -9,7 +9,7 @@
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-# Version Master V8.13.142.2025.10.14
+# Version Master V8.13.294.2025.10.28
 
 name: 🔐 Generating a Private Live ISO TRIXIE.
 
@@ -40,7 +40,7 @@ jobs:
         shell: bash
         run: |
           export DEBIAN_FRONTEND=noninteractive
-          apt-get update
+          apt-get update -qq
           apt-get upgrade -y
           apt-get install -y --no-install-recommends \
             apt-utils \

.gitea/workflows/generate_PRIVATE_trixie_1.yaml

@@ -9,7 +9,7 @@
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-# Version Master V8.13.142.2025.10.14
+# Version Master V8.13.294.2025.10.28
 
 name: 🔐 Generating a Private Live ISO TRIXIE.
 
@@ -40,7 +40,7 @@ jobs:
         shell: bash
         run: |
           export DEBIAN_FRONTEND=noninteractive
-          apt-get update
+          apt-get update -qq
           apt-get upgrade -y
           apt-get install -y --no-install-recommends \
             apt-utils \
@@ -152,6 +152,7 @@ jobs:
           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:       ${{ secrets.CISS_PHYS_AGE }}
         run: |
           set -Ceuo pipefail
           umask 077
@@ -162,6 +163,7 @@ jobs:
           OUT="${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: ${TPL}"
@@ -177,6 +179,7 @@ jobs:
           export RSA_PUB="${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 >| "${ID_OUT}"
@@ -212,6 +215,15 @@ jobs:
           ' "${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 ...

.gitea/workflows/generate_PUBLIC_iso.yaml

@@ -9,7 +9,7 @@
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-# Version Master V8.13.142.2025.10.14
+# Version Master V8.13.294.2025.10.28
 
 name: 💙 Generating a PUBLIC Live ISO.
 
@@ -40,7 +40,7 @@ jobs:
         shell: bash
         run: |
           export DEBIAN_FRONTEND=noninteractive
-          apt-get update
+          apt-get update -qq
           apt-get upgrade -y
           apt-get install -y --no-install-recommends \
             apt-utils \

.gitea/workflows/linter_char_scripts.yaml

@@ -9,7 +9,7 @@
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-# Version Master V8.13.142.2025.10.14
+# Version Master V8.13.294.2025.10.28
 
 # Gitea Workflow: Shell-Script Linting
 #

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

@@ -9,7 +9,7 @@
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-# Version Master V8.13.142.2025.10.14
+# Version Master V8.13.294.2025.10.28
 
 name: 🛡️ Retrieve DNSSEC status of coresecret.dev.
 

.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 V8.13.142.2025.10.14
+# Version Master V8.13.294.2025.10.28
 
 name: 🔁 Render Graphviz Diagrams.
 

.gitignore

@@ -10,7 +10,6 @@
 # SPDX-Security-Contact: security@coresecret.eu
 .checklist/
 .idea/
-build/
 out/
 target/
 *.DS_Store

.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="V8.13.142.2025.10.14"
+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 V8.13.142.2025.10.14
+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

LINTER_RESULTS.txt

@@ -1,5 +1,5 @@
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-10-14; 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>
@@ -9,8 +9,8 @@
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-This file was automatically generated by the DEPLOY BOT on: "2025-10-14T19:37:03Z"
+This file was automatically generated by the DEPLOY BOT on: "2025-10-28T18:49:03Z"
 
-⚠️ The last linter check was NOT successful. ⚠️
+✅ The last linter check was successful. ✅
 
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=text

LIVE_ISO.public

@@ -1,5 +1,5 @@
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-10-14; 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: "2025-10-14T22:23:27Z"
+This file was automatically generated by the DEPLOY BOT on: "2025-10-24T14:50:31Z"
 
 CISS.debian.live.builder ISO :
-  "ciss-debian-live-2025_10_14T21_30_07Z-amd64.hybrid.iso"
+  "ciss-debian-live-2025_10_24T13_56_21Z-amd64.hybrid.iso"
 CISS.debian.live.builder ISO sha512 :
-  442037d11eb48f4adbd1a3da17cf36062ec6be816627c38fe814458840020f212c551b96d5e785c4372fa09fc11fd9529f34166530b1e1f5ce9335abadb5f771
+  036a1004fee05962610c6e604510bc5293aecf56ddca6cde311179f4b437f6d1d474c6deaca0189de5bea80186068ac82de17b9814fbd6ab2e9ed54e47f3de8f
 CISS.debian.live.builder ISO sha512 sign :
   -----BEGIN PGP SIGNATURE-----
 
-iHUEABYKAB0WIQSqYnPMNKGz69afyHA85KY4hzOwIQUCaO7NXwAKCRA85KY4hzOw
+iHQEABYKAB0WIQSqYnPMNKGz69afyHA85KY4hzOwIQUCaPuSNwAKCRA85KY4hzOw
-IT3LAP4uP8glLMDEpUntKJQTiPqSYjGUyIFoKmsgALGPJcnnoQD/fcz4Mq12mF32
+IXoDAP9cfoBONoT0ckPEZS7Ny/4l3hLGW4hKcJYz/bTJLy9MkAD468vyMLOwI9yM
-jf4ETKQBqlxuQyLTPvPFhLsrBbDD0AI=
+ipWXHva/2ghh0CqBXzuR+QfSRToABg==
-=/UNR
+=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: 2025-10-14; 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: "2025-10-14T20:32:28Z"
+This file was automatically generated by the DEPLOY BOT on: "2025-10-28T09:52:35Z"
 
 CISS.debian.live.builder ISO :
-  "ciss-debian-live-2025_10_14T19_36_59Z-amd64.hybrid.iso"
+  "ciss-debian-live-2025_10_28T08_58_22Z-amd64.hybrid.iso"
 CISS.debian.live.builder ISO sha512 :
-  57559f9b9c5e50dad6a5b2023d992c26b8f4d25dd0d45ffa5cfd479ee623287e2c2eead70016267b848c5910db5ba5c4e2dfeeb12cca6f59fe455dad886c51d9
+  098af6c0d36b41bfe7c03d978eefa721bd39ba4ed4ba26c422fb589a635522369d0f8ef2ca48248cf6f0e11dda55ef748247822f05c6291fd0aca3763ea1abf2
 CISS.debian.live.builder ISO sha512 sign :
   -----BEGIN PGP SIGNATURE-----
 
-iHUEABYKAB0WIQSqYnPMNKGz69afyHA85KY4hzOwIQUCaO6zXAAKCRA85KY4hzOw
+iHUEABYKAB0WIQSqYnPMNKGz69afyHA85KY4hzOwIQUCaQCSYwAKCRA85KY4hzOw
-Idq2AQDRmgHRGnX1bn+cNV5JirecSke0IAwlAjEXOl4tFoQlewEA0s2R1A3OQjIq
+Ic8eAP98y67arFZCGX/ooghY/eMGbcxWnhJSgfB5uVCgJcBu5wD+ObnpugIPVv/l
-fAhdl2wltVNT5+jUg6EUj3FE3kVPaQo=
+OplWsbTlCPA1gMtuJHflKypwlIKQGQU=
-=fmxg
+=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: 2025-10-14; 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: "2025-10-14T21:28:34Z"
+This file was automatically generated by the DEPLOY BOT on: "2025-10-28T19:43:00Z"
 
 CISS.debian.live.builder ISO :
-  "ciss-debian-live-2025_10_14T20_33_51Z-amd64.hybrid.iso"
+  "ciss-debian-live-2025_10_28T18_48_33Z-amd64.hybrid.iso"
 CISS.debian.live.builder ISO sha512 :
-  4a47a1ed0986b67774047b2bfc6fdd53753fa8f301f8376b23ccde1f5187aeffbca7fce3194a3d7b61278630291a1d2d954a289da712c064326eb6b7020c228c
+  54765612eabb3cf442f4ecc172aab818d3a39ac6d686741f5c92523e83b297dcd67c290427f0965bced7df466f0b46e59cd81c5123d29044c5b9d07ee13ee82a
 CISS.debian.live.builder ISO sha512 sign :
   -----BEGIN PGP SIGNATURE-----
 
-iHUEABYKAB0WIQSqYnPMNKGz69afyHA85KY4hzOwIQUCaO7AggAKCRA85KY4hzOw
+iHUEABYKAB0WIQSqYnPMNKGz69afyHA85KY4hzOwIQUCaQEcxAAKCRA85KY4hzOw
-IWpdAP4xCxUP4V0lOBE1u7+wEOoEmXiRC10Va4Hf2UXjH1BSVwEAsz/cMaGt+rJT
+ITCiAP9e2/bxJ7t8abtVImKGLnuEUJl82LYGlHi5JLEcdZMXYAEAsI93ja0t7G2m
-q0i+5EftPavvIst48aXQsp7QKjyNewM=
+eMb/3bex3UnB6xwpd9tceBZBK8UDbAQ=
-=x3/T
+=/fm8
 -----END PGP SIGNATURE-----
 
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=text

README.md

@@ -2,7 +2,7 @@
 gitea: none
 include_toc: true
 ---
-[![Static Badge](https://badges.coresecret.dev/badge/Release-V8.13.142.2025.10.14-white?style=plastic&logo=linux&logoColor=white&logoSize=auto&label=Release&color=%23FCC624)](https://git.coresecret.dev/msw/CISS.debian.live.builder)
+[![Static Badge](https://badges.coresecret.dev/badge/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/)  
 [![Static Badge](https://badges.coresecret.dev/badge/opensourceinitiative-Compliant-white?style=plastic&logo=opensourceinitiative&logoColor=white&logoSize=auto&label=OSI&color=%233DA639)](https://opensource.org/license/eupl-1-2)  
@@ -11,8 +11,8 @@ include_toc: true
 [![Static Badge](https://badges.coresecret.dev/badge/shellformat-passed-white?style=plastic&logo=google&logoColor=white&logoSize=auto&label=shellformat&color=%234285F4)](https://github.com/mvdan/sh)  
 [![Static Badge](https://badges.coresecret.dev/badge/Shellstyle-Google-white?style=plastic&logo=google&logoColor=white&logoSize=auto&label=Shellstyle&color=%234285F4)](https://google.github.io/styleguide/shellguide.html)
  
-[![Static Badge](https://badges.coresecret.dev/badge/Gitea-1.24.6-white?style=plastic&logo=gitea&logoColor=white&logoSize=auto&label=gitea&color=%23609926)](https://docs.gitea.com/)  
+[![Static Badge](https://badges.coresecret.dev/badge/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-2025.2.3-white?style=plastic&logo=intellijidea&logoColor=white&logoSize=auto&label=IntelliJ&color=%23000000)](https://www.jetbrains.com/store/?section=personal&billing=yearly)  
+[![Static Badge](https://badges.coresecret.dev/badge/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)  
 [![Static Badge](https://badges.coresecret.dev/badge/keepassxc-2.7.10-white?style=plastic&logo=keepassxc&logoColor=white&logoSize=auto&label=KeePassXC&color=%236CAC4D)](https://keepassxc.org/)  
 [![Static Badge](https://badges.coresecret.dev/badge/netcup-Netcup-white?style=plastic&logo=netcup&logoColor=white&logoSize=auto&label=powered&color=%23056473)](https://www.netcup.com/de)  
 [![Static Badge](https://badges.coresecret.dev/badge/powered-Centurion-white?style=plastic&logo=europeanunion&logoColor=white&logoSize=auto&label=powered&color=%230F243E)](https://coresecret.eu/)  
@@ -26,7 +26,7 @@ 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**: 8.13<br>
-**Build**: V8.13.142.2025.10.14<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
@@ -151,7 +151,7 @@ This means function status of the **CISS.2025.debian.live.builder** ISO after d-
 
 This project adheres strictly to a structured versioning scheme following the pattern x.y.z-Date.
 
-Example: `V8.13.142.2025.10.14`
+Example: `V8.13.294.2025.10.28`
 
 `x.y.z` represents major (x), minor (y), and patch (z) version increments.
 
@@ -290,7 +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) 

REPOSITORY.md

@@ -8,13 +8,13 @@ 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**: 8.13<br>
-**Build**: V8.13.142.2025.10.14<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 **V8.13.142.2025.10.14** (as of 2025-10-11)
+**Repository State:** Master Version **8.13**, Build **V8.13.294.2025.10.28** (as of 2025-10-11)
 
 ## 2.2. Top-Level Layout
 
@@ -69,7 +69,7 @@ CISS.debian.live.builder/
 
 ### 2.3.2. `config/` — Live-Build Configuration
 - **`bootloaders/`**: Boot assets for GRUB in EFI and PC modes, incl. a branded splash image.
-- **`hooks/live/`**: **Ordered** `*.chroot` hooks implementing system configuration and hardening during image creation; the numeric prefixes dictate execution (e.g., `0000_basic_chroot_setup.chroot`, `0810_chrony_setup.chroot`, `0900_ufw_setup.chroot`, `9930_hardening_ssh.chroot`, `9950_fail2ban_hardening.chroot`).
+- **`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),

ciss_live_builder.sh

@@ -132,6 +132,7 @@ declare -gx VAR_SETUP="true"
   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"
@@ -149,6 +150,7 @@ declare -gx VAR_SETUP="true"
   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"
 }
 
@@ -218,6 +220,7 @@ fi
 
 check_hooks
 hardening_ssh
+ciss_upgrades
 lb_config_start
 
 if [[ "${VAR_SUITE}" == "bookworm" ]]; then
@@ -244,6 +247,7 @@ check_dhcp
 cdi
 provider_netcup
 note_target
+update_microcode
 
 ### Start the build process
 set +o errtrace

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

@@ -13,8 +13,199 @@ 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}

config/hooks/live/0001_initramfs_modules.chroot

@@ -53,6 +53,7 @@ grep_nic_driver_modules() {
   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
 
@@ -82,19 +83,10 @@ cat << EOF >| /etc/initramfs-tools/modules
 # raid1
 # sd_mod
 
-### Load AppArmor early:
+### AppArmor -------------------------------------------------------------------------------------------------------------------
 apparmor
 
-### Entropy source for '/dev/random':
+### btrfs ----------------------------------------------------------------------------------------------------------------------
-jitterentropy_rng
-rng_core
-
-### Live-ISO-Stack:
-loop
-squashfs
-overlay
-
-### Main btrfs-Stack:
 btrfs
 lzo
 xor
@@ -102,28 +94,7 @@ xxhash
 zstd
 zstd_compress
 
-### Main ext4-Stack:
+### cryptography ---------------------------------------------------------------------------------------------------------------
-ext4
-jbd2
-libcrc32c
-
-### Main VFAT/ESP/FAT/UEFI-Stack:
-exfat
-fat
-nls_ascii
-nls_cp437
-nls_iso8859-1
-nls_iso8859-15
-nls_utf8
-vfat
-
-### Device mapper, encryption & integrity:
-dm_mod
-dm_crypt
-dm_integrity
-dm_verity
-
-### Main cryptography-Stack:
 aes_generic
 blake2b_generic
 crc32c_generic
@@ -133,47 +104,99 @@ sha256_generic
 sha512_generic
 xts
 
-### QEMU Bochs-compatible virtual machine support:
+### cryptsetup -----------------------------------------------------------------------------------------------------------------
-bochs
+dm_crypt
+dm_integrity
+dm_mod
+dm_verity
 
-### RAID6 parity generation module:
+### Entropy --------------------------------------------------------------------------------------------------------------------
-raid6_pq
+jitterentropy_rng
+rng_core
 
-### Combined RAID4/5/6 support module:
+### ESP/FAT/UEFI ---------------------------------------------------------------------------------------------------------------
-raid456
+exfat
+fat
+nls_ascii
+nls_cp437
+nls_iso8859-1
+nls_iso8859-15
+nls_utf8
+vfat
 
-### SCSI/SATA-Stack:
+### ext4 -----------------------------------------------------------------------------------------------------------------------
-sd_mod
+ext4
-sr_mod
+jbd2
-sg
+libcrc32c
-ahci
-libahci
-ata_generic
-libata
-scsi_mod
-scsi_dh_alua
 
-### NVMe-Stack:
+### 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
 
-### USB-Stack:
+### QEMU -----------------------------------------------------------------------------------------------------------------------
-xhci_pci
+bochs
-xhci_hcd
+
+### RAID -----------------------------------------------------------------------------------------------------------------------
+raid456
+raid6_pq
+
+### SCSI/SATA ------------------------------------------------------------------------------------------------------------------
+ahci
+ata_generic
+libahci
+libata
+scsi_dh_alua
+scsi_mod
+sd_mod
+sg
+sr_mod
+
+### USB ------------------------------------------------------------------------------------------------------------------------
 ehci_pci
 ohci_pci
+uas
 uhci_hcd
 usb_storage
-uas
+xhci_hcd
+xhci_pci
 
-### Virtual-Machines-Stack:
+### Virtual --------------------------------------------------------------------------------------------------------------------
-virtio_pci
 virtio_blk
-virtio_scsi
-virtio_rng
 virtio_console
+virtio_pci
+virtio_rng
+virtio_scsi
 
-### Network Driver Host-machine:
+### Network Driver Host-machine ------------------------------------------------------------------------------------------------
 "${nic_driver}"
 
 EOF
@@ -201,7 +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 ]
@@ -277,10 +300,10 @@ COMPRESS=zstd
 # Defaults vary by compressor.
 #
 # Valid values are:
-# 1-9 for gzip|bzip2|lzma|lzop
+# 1...9 for gzip|bzip2|lzma|lzop
-# 0-9 for  lz4|xz
+# 0...9 for  lz4|xz
-# 0-19 for zstd
+# 0...19 for zstd
-# COMPRESSLEVEL=3
+COMPRESSLEVEL=16
 
 #
 # DEVICE: ...
@@ -332,24 +355,95 @@ cat << 'EOF' >> /etc/initramfs-tools/hooks/ciss_debian_live_builder
 
 set -e
 
+printf "\e[95mStarting: [0001_initramfs_modules.chroot] \n\e[0m"
+
 PREREQ=""
-prereqs() { echo "$PREREQ"; }
+prereqs() { echo "${PREREQ}"; }
-case $1 in
+# shellcheck disable=SC2249
+case "${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
+### Ensure directory structure in initramfs
-copy_exec /usr/bin/bash /usr/bin
+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)
+### Include bash
-copy_exec /usr/bin/udevadm /usr/bin
+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

config/hooks/live/0002_verify_checksums.chroot

@@ -22,24 +22,25 @@ fi
 
 cat << 'EOF' >| "${src}"
 #!/bin/sh
+# bashsupport disable=BP5007
+
 # SPDX-Version: 3.0
-# SPDX-CreationInfo: 2025-10-11; 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-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'
+### Modified Version of the original file:
-### In case of successful verification of the offered checksums, proceed with booting, else panic.
+### 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.
-### Inside 0002_verify_checksums.chroot ###
 
 #######################################
-# 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
@@ -52,30 +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}"
@@ -84,46 +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."
+      log_success_msg "Verification of checksums successful; continuing booting in 8 seconds."
-      sleep 10
+      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

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

@@ -13,6 +13,7 @@ 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
 

config/hooks/live/0080_keyboard_layout.chroot

@@ -21,6 +21,8 @@ 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}"

config/hooks/live/0090_jitterentropy.chroot

@@ -0,0 +1,33 @@
+#!/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" "${0}"
+
+[[ -r /root/ciss_xdg_tmp.sh ]] && . /root/ciss_xdg_tmp.sh
+export DEBIAN_FRONTEND="noninteractive"
+apt-get install -y --no-install-recommends jitterentropy-rngd
+
+cd /root
+
+mkdir -p /etc/systemd/system/jitterentropy-rngd.service.d
+
+cat << 'EOF' >> /etc/systemd/system/jitterentropy-rngd.service.d/override.conf
+[Service]
+ExecStart=
+ExecStart=/usr/sbin/jitterentropy-rngd --osr=2
+EOF
+
+printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
+
+exit 0
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/hooks/live/0120_set_hostname.chroot

@@ -12,7 +12,6 @@
 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

@@ -12,7 +12,6 @@
 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

@@ -23,8 +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
 
+[[ -r /root/ciss_xdg_tmp.sh ]] && . /root/ciss_xdg_tmp.sh
 export DEBIAN_FRONTEND="noninteractive"
-apt-get update
+apt-get update -qq
 apt-get install -y eza
 
 git clone https://github.com/eza-community/eza-themes.git

config/hooks/live/0800_lynis_setup.chroot

@@ -16,8 +16,9 @@ printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "
 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
 
+[[ -r /root/ciss_xdg_tmp.sh ]] && . /root/ciss_xdg_tmp.sh
 export DEBIAN_FRONTEND="noninteractive"
-apt-get update
+apt-get update -qq
 apt-get install -y lynis
 lynis show version
 

config/hooks/live/0810_chrony_setup.chroot

@@ -15,6 +15,7 @@ printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "
 
 mkdir -p /var/log/chrony
 
+[[ -r /root/ciss_xdg_tmp.sh ]] && . /root/ciss_xdg_tmp.sh
 export DEBIAN_FRONTEND="noninteractive"
 export TZ="Etc/UTC"
 
@@ -50,13 +51,13 @@ log tracking measurements statistics
 
 authselectmode require
 
-server ntp.ripe.net      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 ntp13.metas.ch    iburst nts minpoll 5 maxpoll 9
-server time-c-b.nist.gov iburst nts minpoll 5 maxpoll 9
+# server time-c-b.nist.gov iburst nts minpoll 5 maxpoll 9
-server sth1.ntp.se       iburst nts minpoll 5 maxpoll 9
+# server sth1.ntp.se       iburst nts minpoll 5 maxpoll 9
 server ntp0.fau.de       iburst nts minpoll 5 maxpoll 9
 
 leapsectz right/UTC
@@ -110,6 +111,8 @@ if [[ -e /usr/share/zoneinfo/right/UTC ]]; then
 
 fi
 
+chronyd -Q -f /etc/chrony/chrony.conf 2>&1
+
 printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
 
 exit 0

config/hooks/live/0822_ssh_restart_hook.chroot

@@ -20,7 +20,7 @@ cat << 'EOF' >| "${target_script}"
 @reboot root /usr/local/bin/restart-ssh.sh
 EOF
 
-chmod 0644 "${target_script}"
+chmod 0444 "${target_script}"
 
 cat << 'EOF' >| /usr/local/bin/restart-ssh.sh
 #!/bin/bash

config/hooks/live/0840_ufw_abuse_ipdb_reporter.chroot

@@ -13,6 +13,7 @@ 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"
 curl -fsSL https://deb.nodesource.com/setup_22.x | sudo -E bash - && \
 apt-get install -y nodejs

config/hooks/live/0845_harbian_audit.chroot

@@ -12,13 +12,11 @@
 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

@@ -12,13 +12,11 @@
 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

@@ -12,13 +12,11 @@
 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

@@ -13,7 +13,8 @@ set -Ceuo pipefail
 
 printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
 
-export DEBIAN_FRONTEND=noninteractive
+[[ -r /root/ciss_xdg_tmp.sh ]] && . /root/ciss_xdg_tmp.sh
+export DEBIAN_FRONTEND="noninteractive"
 
 SOPS_VER="v3.11.0"
 ARCH="$(dpkg --print-architecture)"
@@ -47,6 +48,16 @@ rm -f "/tmp/sops-${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

config/hooks/live/0865_yq.chroot

@@ -13,17 +13,12 @@ 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 haveged
 
-cd /root
+wget https://github.com/mikefarah/yq/releases/latest/download/yq_linux_amd64 -O /usr/local/bin/yq && chmod +x /usr/local/bin/yq
-cat << 'EOF' >| /etc/default/haveged
-# Configuration file for haveged
-
-# Options to pass to haveged:
-DAEMON_ARGS="-w 2048 -v 1"
-EOF
 
+yq --version
 
 printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
 

config/hooks/live/0900_ufw_setup.chroot

@@ -12,10 +12,9 @@
 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

@@ -13,6 +13,7 @@ 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 acct
 

config/hooks/live/9950_fail2ban_hardening.chroot

@@ -1,146 +0,0 @@
-#!/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 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.debian.installer.secure framework.
-# SPDX-PackageName: CISS.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}"
-
-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/9970_remove_exim.chroot

@@ -13,16 +13,19 @@ 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"
+
 cd /etc
 
-apt-get purge exim4 exim4-base 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
+apt-get update -qq
 apt-get upgrade -y
 
 if [[ -d /etc/exim4 ]]; then

config/hooks/live/9980_usb_guard.chroot

@@ -13,6 +13,7 @@ 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 usbguard
 

config/hooks/live/9990_final_purge.chroot

@@ -13,13 +13,15 @@ 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 update -qq
 
-apt-get purge -y exim4 exim4-daemon-light exim4-base exim4-config qemu-guest-agent rmail
+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 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
 

config/hooks/live/9993_aide.chroot

@@ -13,6 +13,7 @@ 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 aide > /dev/null 2>&1
 

config/hooks/live/9996_auditd.chroot

@@ -25,6 +25,7 @@ printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "
 
 cd /root
 
+[[ -r /root/ciss_xdg_tmp.sh ]] && . /root/ciss_xdg_tmp.sh
 export DEBIAN_FRONTEND="noninteractive"
 apt-get install -y auditd
 
@@ -33,22 +34,39 @@ 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
+############################################################### /etc/audit/rules.d/00-base-config.rules
-cat << EOF >| /etc/audit/rules.d/10-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
+## Make this bigger for busy systems.
--b 8192
+-b 16384
 
-## This determine how long to wait in burst of events
+## Rate Limit. Cap kernel->userspace message rate (0 = unlimited).
---backlog_wait_time 60000
+-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
@@ -91,6 +109,17 @@ cat << EOF >| /etc/audit/rules.d/22-ignore-chrony.rules
 -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
 cat << EOF >| /etc/audit/rules.d/30-ospp-v42-1-create-failed.rules
 ## Unsuccessful file creation (open with O_CREAT)
@@ -108,17 +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)
@@ -136,17 +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.
@@ -156,14 +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
@@ -173,13 +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
@@ -189,13 +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
@@ -205,13 +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

config/hooks/live/9997_debsums.chroot

@@ -15,6 +15,7 @@ printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "
 
 cd /root
 
+[[ -r /root/ciss_xdg_tmp.sh ]] && . /root/ciss_xdg_tmp.sh
 export DEBIAN_FRONTEND="noninteractive"
 apt-get install -y --no-install-recommends debsums
 

config/hooks/live/9998_sources_list_bookworm.chroot

@@ -55,7 +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

config/hooks/live/9998_sources_list_trixie.chroot

@@ -13,6 +13,9 @@ 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)"
 
@@ -121,6 +124,11 @@ Signed-By: /usr/share/keyrings/debian-archive-keyring.gpg
 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

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.chroot/etc/login.defs

@@ -93,6 +93,7 @@ TTYPERM		0600
 #
 ERASECHAR	0177
 KILLCHAR	025
+UMASK 077
 
 # HOME_MODE is used by useradd(8) and newusers(8) to set the mode for new
 # home directories.
@@ -203,7 +204,9 @@ NONEXISTENT	/nonexistent
 USERGROUPS_ENAB yes
 
 #
-# Added by CISS.debian.live.builder for redundance
+# Added by CISS.debian.live.builder for redundancy
-UMASK 077
+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

@@ -9,7 +9,7 @@
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-# Version Master V8.13.142.2025.10.14
+# 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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

config/includes.chroot/etc/ssh/sshd_config

@@ -9,7 +9,7 @@
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-# Version Master V8.13.142.2025.10.14
+# 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
@@ -28,7 +28,7 @@ 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.
@@ -46,9 +46,9 @@ StrictModes                  yes
 LoginGraceTime               2m
 MaxAuthTries                 3
 MaxSessions                  2
-### Begin randomly dropping new unauthenticated connections after the 8th attempt,
+### 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 16.
+### with a 64% chance to drop each additional connection, up to a hard limit of 08.
-MaxStartups                  08:64:16
+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         8

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 V8.13.142.2025.10.14
+# 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/preseed_hash_generator.sh

@@ -10,7 +10,7 @@
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-declare -gr VERSION="Master V8.13.142.2025.10.14"
+declare -gr VERSION="Master V8.13.294.2025.10.28"
 
 ### VERY EARLY CHECK FOR DEBUGGING
 if [[ $* == *" --debug "* ]]; then

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 V8.13.142.2025.10.14 at: 10:18:37.9542
+# Written by: ./preseed_hash_generator.sh Version: Master V8.13.294.2025.10.28 at: 10:18:37.9542

config/includes.chroot/root/.bashrc

@@ -14,21 +14,45 @@
 ### Never use 'errexit' | 'nounset' | 'pipefail' in interactive shells.
 set +o errexit +o nounset +o pipefail
 
+# shellcheck disable=SC2312
+if [[ "$(id -u)" -eq 0 ]]; then
+  umask 0022
+  PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
+else
+  umask 0077
+  PATH="/usr/local/bin:/usr/bin:/bin"
+fi
+export PATH
+
 trap ' "${SHELL}" /root/.ciss/clean_logout.sh ' EXIT
 source /root/.ciss/alias
 source /root/.ciss/f2bchk.sh
 source /root/.ciss/shortcuts
 source /root/.ciss/scan_libwrap
 
-### History
+### Preferred editor for local and remote sessions.
-touch /tmp/.bash_history
+export EDITOR="nano"
-chmod 0660 /tmp/.bash_history
+
-chown root:root /tmp/.bash_history
+### History-Settings
-export HISTFILE=/tmp/.bash_history
+# The name of the file in which command history is saved. The default value is ~/.bash_history. If unset, the command history
+# is not saved when a shell exits.
+export HISTFILE="${XDG_STATE_HOME}/bash/history"
+
+touch "${HISTFILE}"
+chmod 0660 "${HISTFILE}"
+chown root:root "${HISTFILE}"
+
 export HISTSIZE=2048
 export HISTFILESIZE=2048
 shopt -s histappend
 
+# Optional, cautious filters (avoids trivial leaks, but not foolproof). Caution: HISTIGNORE is coarse-grained, don't overdo it.
+export HISTIGNORE='*PASS*:*pass*:*secret*:*token*:*API_KEY*'
+
+# -'ignoreboth' Do not put duplicate lines or lines starting with space in the history.
+# -'erasedups' Causes all previous lines matching the current line to be removed from the history before that line is saved.
+export HISTCONTROL='ignoreboth:erasedups'
+
 ### Define colors for bash prompt
 export CRED='\033[1;91m'
 export CGRE='\033[1;92m'

config/includes.chroot/root/.ciss/alias

@@ -10,9 +10,6 @@
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-########################################################################################### Alpha
-alias genkeyfile='haveged -n 1048576 >| /tmp/secure_keyfile_$(date +%s)'
-
 ########################################################################################### Bash
 alias clear="printf '\033c'"
 alias c='clear'
@@ -239,7 +236,31 @@ sysp() {
 #######################################
 trel() {
   declare depth=${1:-3}
-  tree -C -h --dirsfirst -L "${depth}"
+
+  if ! [[ "${depth}" =~ ^[0-9]+$ ]]; then
+    echo "Error: '${depth}' is not a valid depth. Please provide a positive integer." >&2
+    return 2
+  fi
+
+  if ! command -v eza >/dev/null 2>&1; then
+    echo "Error: 'eza' is not installed." >&2
+    return 1
+  fi
+
+  (( $# > 0 )) && shift
+
+  eza --tree \
+    --level="${depth}" \
+    --group-directories-first \
+    --icons=auto \
+    --color=always \
+    --long \
+    --no-permissions \
+    --no-user \
+    --no-time \
+    "$@"
+
+  return 0
 }
 
 #######################################

config/includes.chroot/root/.ciss/check_chrony.sh

@@ -14,7 +14,7 @@ set -Ceuo pipefail
 
 #######################################
 # Minimal leap-second probe for Debian/chrony systems.
-# - Prints kernel leap flags & TAI offset (ΔAT).
+# - Prints kernel leap flags & TAI offset (delta AT).
 # - Reads tzdata's leap-seconds list (authoritative TAI-UTC).
 # - Shows chrony tracking summary (incl. leap status).
 # - Demonstrates 23:59:60 rendering via TZ=right/UTC.
@@ -38,7 +38,7 @@ main() {
     tz_tai="$(awk '{print $2}' <<<"${tz_leap_line}")"
     ts_human="$(awk -F'#' '{gsub(/^[[:space:]]+/, "", $2); print $2}' <<<"${tz_leap_line}")"
 
-    printf "tzdata ΔAT (TAI-UTC): %s s [last change at: %s; NTP ts: %s]\n\n" "${tz_tai:-?}" "${ts_human:-?}" "${tz_ntp:-?}"
+    printf "tzdata delta AT (TAI-UTC): %s s [last change at: %s; NTP ts: %s]\n\n" "${tz_tai:-?}" "${ts_human:-?}" "${tz_ntp:-?}"
 
   else
 
@@ -56,7 +56,7 @@ main() {
 
     if [[ -n "${k_tai:-}" ]]; then
 
-      printf "Kernel-exported ΔAT [tai]: %s s\n" "${k_tai}"
+      printf "Kernel-exported delta AT [tai]: %s s\n" "${k_tai}"
 
     fi
 
@@ -96,8 +96,8 @@ main() {
   printf "\n"
   printf "Hint:\n"
 
-  printf "  • ΔAT (TAI-UTC) should match tzdata and kernel (chrony sets kernel TAI if leapsectz/leapseclist is used).\n"
+  printf "  - delta AT (TAI-UTC) should match tzdata and kernel (chrony sets kernel TAI if leapsectz/leapseclist is used).\n"
-  printf "  • For monotonic intervals, apps must use CLOCK_MONOTONIC, not CLOCK_REALTIME.\n"
+  printf "  - For monotonic intervals, apps must use CLOCK_MONOTONIC, not CLOCK_REALTIME.\n"
 
   return 0
 }

config/includes.chroot/root/.ciss/shortcuts

@@ -41,7 +41,6 @@ declare -ga shortcuts=(
   "f2bubn: f2b unban --all"
   "f2bufw: f2b status ufw"
   "free: free -m"
-  "genkeyfile: 1MiBi"
   "genpasswd: PWD"
   "genpasswdhash: PWD Hash"
   "genstring: Random String"

config/includes.chroot/root/.zshenv

@@ -0,0 +1,27 @@
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-10-19; 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
+
+: "${XDG_CONFIG_HOME:=${HOME}/.config}"
+: "${XDG_CACHE_HOME:=${HOME}/.cache}"
+: "${XDG_DATA_HOME:=${HOME}/.local/share}"
+: "${XDG_STATE_HOME:=${HOME}/.local/state}"
+
+# Do NOT set XDG_RUNTIME_DIR here.
+
+export XDG_CONFIG_HOME XDG_CACHE_HOME XDG_DATA_HOME XDG_STATE_HOME
+
+### Zsh history -> XDG_STATE_HOME (best-effort; zsh might not read /etc/profile)
+if [ "${ENABLE_XDG_ZSH_HISTORY:-1}" = "1" ] && [ -n "${ZSH_VERSION:-}" ]; then
+  [ -d "${XDG_STATE_HOME}/zsh" ] || install -d -m 0700 -- "${XDG_STATE_HOME}/zsh"
+  export HISTFILE="${XDG_STATE_HOME}/zsh/history"
+fi
+
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/package-lists/live.list.amd64.chroot

@@ -8,5 +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
+
 grub-efi-amd64-signed
+
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/package-lists/live.list.arm64.chroot

@@ -8,5 +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
+
 grub-efi-arm64-signed
+
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

config/package-lists/live.list.common.chroot

@@ -67,11 +67,11 @@ gawk
 gdisk
 git
 gnupg
-haveged
 htop
 iftop
 iproute2
 iputils-ping
+jitterentropy-rngd
 jq
 keyboard-configuration
 keychain
@@ -83,7 +83,7 @@ libpwquality-tools
 libtomcrypt-dev
 libtommath-dev
 libtool
-linux-doc-6.12
+linux-doc-6.16
 linux-source
 live-boot
 live-config
@@ -146,7 +146,6 @@ whois
 wngerman
 xfsprogs
 xz-utils
-yq
 zip
 zsh
 

docs/AUDIT_DNSSEC.md

@@ -8,7 +8,7 @@ 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**: 8.13<br>
-**Build**: V8.13.142.2025.10.14<br>
+**Build**: V8.13.294.2025.10.28<br>
 
 # 2. DNSSEC Status
 

docs/AUDIT_HAVEGED.md

@@ -8,7 +8,7 @@ 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**: 8.13<br>
-**Build**: V8.13.142.2025.10.14<br>
+**Build**: V8.13.294.2025.10.28<br>
 
 # 2. Haveged Audit on Netcup RS 2000 G11
 

docs/AUDIT_LYNIS.md

@@ -8,7 +8,7 @@ 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**: 8.13<br>
-**Build**: V8.13.142.2025.10.14<br>
+**Build**: V8.13.294.2025.10.28<br>
 
 # 2. Lynis Audit:
 

docs/AUDIT_SSH.md

@@ -8,7 +8,7 @@ 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**: 8.13<br>
-**Build**: V8.13.142.2025.10.14<br>
+**Build**: V8.13.294.2025.10.28<br>
 
 # 2. SSH Audit by ssh-audit.com
 

docs/AUDIT_TLS.md

@@ -8,7 +8,7 @@ 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**: 8.13<br>
-**Build**: V8.13.142.2025.10.14<br>
+**Build**: V8.13.294.2025.10.28<br>
 
 # 2. TLS Audit:
 ````text

docs/BOOTPARAMS.md

@@ -8,7 +8,7 @@ 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**: 8.13<br>
-**Build**: V8.13.142.2025.10.14<br>
+**Build**: V8.13.294.2025.10.28<br>
 
 # 2. Hardened Kernel Boot Parameters
 

docs/CHANGELOG.md

@@ -8,18 +8,87 @@ 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**: 8.13<br>
-**Build**: V8.13.142.2025.10.14<br>
+**Build**: V8.13.294.2025.10.28<br>
 
 # 2. Changelog
 
+## V8.13.294.2025.10.28
+* **Added**: [lib_lb_config_write_trixie.sh](../lib/lib_lb_config_write_trixie.sh) + mksquashfs-excludes
+* **Added**: [lib_ciss_upgrades.sh](../lib/lib_ciss_upgrades.sh) + modifies '/usr/lib/live/build/...' scripts
+* **Added**: [lib_update_microcode.sh](../lib/lib_update_microcode.sh)
+* **Added**: [binary_rootfs.sh](../scripts/usr/lib/live/build/binary_rootfs.sh) + modifies binary_rootfs script
+* **Updated**: [generate_PRIVATE_trixie_1.yaml](../.gitea/workflows/generate_PRIVATE_trixie_1.yaml) + --sshfp
+* **Updated**: [0001_initramfs_modules.chroot](../config/hooks/live/0001_initramfs_modules.chroot) + update_initramfs=all COMPRESSLEVEL=10
+* **Updated**: [0007_update_logrotate.chroot](../config/hooks/live/0007_update_logrotate.chroot) = rotate 90; maxage 90
+* **Updated**: [9999_yyyy_logrotate.chroot](../config/hooks/live/9999_yyyy_logrotate.chroot) = rotate 90
+* **Updated**: [9999-cdi-starter](../scripts/usr/local/sbin/9999-cdi-starter) = unified logging
+
+## V8.13.292.2025.10.27
+* **Updated**: [alias](../config/includes.chroot/root/.ciss/alias) = modified trel()
+
+## V8.13.290.2025.10.26
+* **Updated**: [0001_initramfs_modules.chroot](../config/hooks/live/0001_initramfs_modules.chroot) + ESP/FAT/UEFI mods
+* **Updated**: [9950_hardening_fail2ban.chroot](../config/hooks/live/9950_hardening_fail2ban.chroot)
+* **Updated**: [9999-cdi-starter](../scripts/usr/local/sbin/9999-cdi-starter) Preparations for CISS and PhysNet primordial-workflow™.
+
+## V8.13.288.2025.10.24
+* **Added**: Preparations for CISS and PhysNet primordial-workflow™.
+* **Added**: [0865_yq.chroot](../config/hooks/live/0865_yq.chroot)Preparations for CISS and PhysNet primordial-workflow™.
+* **Updated**: [0001_initramfs_modules.chroot](../config/hooks/live/0001_initramfs_modules.chroot) + nftables mods
+* **Updated**: [9950_hardening_fail2ban.chroot](../config/hooks/live/9950_hardening_fail2ban.chroot) + banaction = nftables-*
+* **Updated**: [0900_ufw_setup.chroot](../config/hooks/live/0900_ufw_setup.chroot) changed var injection
+* **Updated**: [9950_hardening_fail2ban.chroot](../config/hooks/live/9950_hardening_fail2ban.chroot) changed var injection
+* **Updated**: [sshd_config](../config/includes.chroot/etc/ssh/sshd_config) changed var injection
+* **Updated**: [lib_hardening_ultra.sh](../lib/lib_hardening_ultra.sh) changed var injection
+* **Removed**: [live.list.common.chroot](../config/package-lists/live.list.common.chroot) - yq
+
+## V8.13.280.2025.10.23
+* **Updated**: [9996_auditd.chroot](../config/hooks/live/9996_auditd.chroot) + 10-ciss-noise-floor.rules
+* **Updated**: [lib_lb_config_write_trixie.sh](../lib/lib_lb_config_write_trixie.sh) changed: audit_backlog_limit=262144
+
+## V8.13.272.2025.10.22
+* **Updated**: [0000_basic_chroot_setup.chroot](../config/hooks/live/0000_basic_chroot_setup.chroot) + amd64-microcode intel-microcode
+* **Updated**: [0090_jitterentropy.chroot](../config/hooks/live/0090_jitterentropy.chroot) removed --sp800-90b
+* **Updated**: [9996_auditd.chroot](../config/hooks/live/9996_auditd.chroot) unified auditd configuration, removed success rules
+* **Updated**: [9998_sources_list_trixie.chroot](../config/hooks/live/9998_sources_list_trixie.chroot) + apt-get dist-upgrade -y
+* **Updated**: [login.defs](../config/includes.chroot/etc/login.defs) 
+* **Updated**: [9999-cdi-starter](../scripts/usr/local/sbin/9999-cdi-starter) 
+
+## V8.13.256.2025.10.21
+* **Updated**: [0007_update_logrotate.chroot](../config/hooks/live/0007_update_logrotate.chroot)
+* **Updated**: [9950_hardening_fail2ban.chroot](../config/hooks/live/9950_hardening_fail2ban.chroot)
+* **Updated**: [.zshenv](../config/includes.chroot/root/.zshenv)
+
+## V8.13.224.2025.10.19
+* **Added**: [.zshenv](../config/includes.chroot/root/.zshenv)
+* **Updated**: [0090_jitterentropy.chroot](../config/hooks/live/0090_jitterentropy.chroot)
+* **Updated**: [9950_hardening_fail2ban.chroot](../config/hooks/live/9950_hardening_fail2ban.chroot) updated ignoreip
+* **Updated**: [9999_yyyy_logrotate.chroot](../config/hooks/live/9999_yyyy_logrotate.chroot) + rsyslog
+* **Updated**: [live.list.common.chroot](../config/package-lists/live.list.common.chroot) - haveged, + jitterentropy-rngd
+
+## V8.13.192.2025.10.18
+* **Added**: [0007_update_logrotate.chroot](../config/hooks/live/0007_update_logrotate.chroot)
+* **Added**: [9999_yyyy_logrotate.chroot](../config/hooks/live/9999_yyyy_logrotate.chroot)
+* **Added**: [9999_zzzz.chroot](../config/hooks/live/9999_zzzz.chroot)
+* **Updated**: [0000_basic_chroot_setup.chroot](../config/hooks/live/0000_basic_chroot_setup.chroot) XDG Base Directory Support
+* **Updated**: [9950_hardening_fail2ban.chroot](../config/hooks/live/9950_hardening_fail2ban.chroot)
+* **Updated**: [sshd_config](../config/includes.chroot/etc/ssh/sshd_config) hardened MaxStartups
+* **Updated**: [alias](../config/includes.chroot/root/.ciss/alias) removed haveged alias
+* **Updated**: [shortcuts](../config/includes.chroot/root/.ciss/shortcuts) removed haveged entry
+* **Updated**: [.bashrc](../config/includes.chroot/root/.bashrc) added HISTIGNORE and EDITOR
+
+## V8.13.144.2025.10.16
+* **Bugfixes**: [99_local.hardened](../config/includes.chroot/etc/sysctl.d/99_local.hardened)
+* **Updated**:  [check_chrony.sh](../config/includes.chroot/root/.ciss/check_chrony.sh)
+* **Changed**:  [0090_jitterentropy.chroot](../config/hooks/live/0090_jitterentropy.chroot)
+
 ## V8.13.142.2025.10.14
-* **Updated**: [9999-cdi-starter](../scripts/9999-cdi-starter)
+* **Updated**: [9999-cdi-starter](../scripts/usr/local/sbin/9999-cdi-starter)
 
 ## V8.13.132.2025.10.11
 * **Added**: [REPOSITORY.md](../REPOSITORY.md)
 
 ## V8.13.128.2025.10.10
-
 * **Added**: Packages ``age``, ``cosign``
 * **Added**: Repository https://github.com/getsops/sops.git
 * **Added**: [0040_ssh_config_setup.chroot](../config/hooks/live/0040_ssh_config_setup.chroot)
@@ -49,7 +118,7 @@ include_toc: true
 * **Added**: [lib_note_target.sh](../lib/lib_note_target.sh)
 * **Updated**: [lib_trap_on_err.sh](../lib/lib_trap_on_err.sh)
 * **Updated**: [lib_trap_on_exit.sh](../lib/lib_trap_on_exit.sh)
-* **Updated**: [9999-cdi-starter](../scripts/9999-cdi-starter)
+* **Updated**: [9999-cdi-starter](../scripts/usr/local/sbin/9999-cdi-starter)
 * **Updated**: [9980_usb_guard.chroot](../config/hooks/live/9980_usb_guard.chroot)
 * **Updated**: [9998_sources_list_bookworm.chroot](../config/hooks/live/9998_sources_list_bookworm.chroot)
 * **Updated**: [9998_sources_list_trixie.chroot](../config/hooks/live/9998_sources_list_trixie.chroot)
@@ -61,7 +130,7 @@ include_toc: true
 ## V8.13.048.2025.10.06
 * **Updated**: Debian 13 LIVE ISO workflows to use Kernel: ``6.16.3+deb13-amd64``
 * **Updated**: Debian 13 LIVE ISO workflows to use argument: ``--cdi``
-* **Updated**: [9000-cdi-starter](../scripts/9999-cdi-starter)
+* **Updated**: [9000-cdi-starter](../scripts/usr/local/sbin/9999-cdi-starter)
 
 ## V8.13.032.2025.10.03
 * **Added**: Internal Gitea Action Runner switch for static SSHFP records.

docs/CNET.md

@@ -8,7 +8,7 @@ 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**: 8.13<br>
-**Build**: V8.13.142.2025.10.14<br>
+**Build**: V8.13.294.2025.10.28<br>
 
 # 2. Centurion Net - Developer Branch Overview
 

docs/CODING_CONVENTION.md

@@ -8,7 +8,7 @@ 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**: 8.13<br>
-**Build**: V8.13.142.2025.10.14<br>
+**Build**: V8.13.294.2025.10.28<br>
 
 # 2. Coding Style
 

docs/CONTRIBUTING.md

@@ -8,7 +8,7 @@ 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**: 8.13<br>
-**Build**: V8.13.142.2025.10.14<br>
+**Build**: V8.13.294.2025.10.28<br>
 
 # 2. Contributing / participating
 

docs/CREDITS.md

@@ -8,7 +8,7 @@ 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**: 8.13<br>
-**Build**: V8.13.142.2025.10.14<br>
+**Build**: V8.13.294.2025.10.28<br>
 
 # 2. Credits
 

docs/DL_PUB_ISO.md

@@ -8,7 +8,7 @@ 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**: 8.13<br>
-**Build**: V8.13.142.2025.10.14<br>
+**Build**: V8.13.294.2025.10.28<br>
 
 # 2. Download the latest PUBLIC CISS.debian.live.ISO
 

docs/DOCUMENTATION.md

@@ -8,12 +8,12 @@ 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**: 8.13<br>
-**Build**: V8.13.142.2025.10.14<br>
+**Build**: V8.13.294.2025.10.28<br>
 
 # 2.1. Usage
 ````text
 CISS.debian.live.builder
-Master V8.13.142.2025.10.14
+Master V8.13.294.2025.10.28
 A lightweight Shell Wrapper for building a hardened Debian Bookworm Live ISO Image.
 
 (c) Marc S. Weidner, 2018 - 2025
@@ -136,7 +136,7 @@ A lightweight Shell Wrapper for building a hardened Debian Bookworm Live ISO Ima
 # 2.2. Contact
 ````text
 CISS.debian.live.builder
-Master V8.13.142.2025.10.14
+Master V8.13.294.2025.10.28
 A lightweight Shell Wrapper for building a hardened Debian Bookworm Live ISO Image.
 
 (c) Marc S. Weidner, 2018 - 2025

docs/REFERENCES.md

@@ -8,7 +8,7 @@ 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**: 8.13<br>
-**Build**: V8.13.142.2025.10.14<br>
+**Build**: V8.13.294.2025.10.28<br>
 
 # 2. Resources
 

lib/lib_cdi.sh

@@ -30,21 +30,24 @@ cdi() {
 
   if [[ "${VAR_HANDLER_CDI}" == "true" ]]; then
 
-    if [[ ! -d "${VAR_HANDLER_BUILD_DIR}/config/includes.chroot/usr/lib/live/config" ]]; then
+    touch      "${VAR_HANDLER_BUILD_DIR}/config/includes.chroot/root/.cdi"
+    chmod 0600 "${VAR_HANDLER_BUILD_DIR}/config/includes.chroot/root/.cdi"
 
-      mkdir -p "${VAR_HANDLER_BUILD_DIR}/config/includes.chroot/usr/lib/live/config"
+    if [[ ! -d "${VAR_HANDLER_BUILD_DIR}/config/includes.chroot/usr/local/sbin" ]]; then
+
+      mkdir -p "${VAR_HANDLER_BUILD_DIR}/config/includes.chroot/usr/local/sbin"
 
     fi
 
-    cp "${VAR_WORKDIR}/scripts/9999-cdi-starter" "${VAR_HANDLER_BUILD_DIR}/config/includes.chroot/usr/lib/live/config/9999-cdi-starter"
+    cp "${VAR_WORKDIR}/scripts/usr/local/sbin/9999-cdi-starter" "${VAR_HANDLER_BUILD_DIR}/config/includes.chroot/usr/local/sbin/9999-cdi-starter.sh"
-    chmod 0750 "${VAR_HANDLER_BUILD_DIR}/config/includes.chroot/usr/lib/live/config/9999-cdi-starter"
+    chmod 0755 "${VAR_HANDLER_BUILD_DIR}/config/includes.chroot/usr/local/sbin/9999-cdi-starter.sh"
-    chown root:root "${VAR_HANDLER_BUILD_DIR}/config/includes.chroot/usr/lib/live/config/9999-cdi-starter"
+    chown root:root "${VAR_HANDLER_BUILD_DIR}/config/includes.chroot/usr/local/sbin/9999-cdi-starter.sh"
 
     declare tmp_entry
     tmp_entry="$(mktemp)"
     cat << EOF >| "${tmp_entry}"
 menuentry "CISS Hardened DI (${VAR_KERNEL})" --hotkey=i {
-        linux /live/vmlinuz-${VAR_KERNEL} boot=live verify-checksums components splash nopersistence toram ramdisk-size=1024M swap=true noautologin nottyautologin nox11autologin noeject locales=en_US.UTF-8 keyboard-layouts=de keyboard-model=pc105 keyboard-options= keyboard-variants= timezone=Etc/UTC apparmor=1 security=apparmor audit_backlog_limit=8192 audit=1 debugfs=off efi=disable_early_pci_dma hardened_usercopy=1 ia32_emulation=0 init_on_alloc=1 init_on_free=1 iommu.passthrough=0 iommu.strict=1 iommu=force kfence.sample_interval=100 kvm.nx_huge_pages=force l1d_flush=on lockdown=confidentiality loglevel=0 mitigations=auto,nosmt mmio_stale_data=full,force nosmt=force oops=panic page_alloc.shuffle=1 page_poison=1 panic=0 pti=on random.trust_bootloader=off random.trust_cpu=off randomize_kstack_offset=on retbleed=auto,nosmt rodata=on slab_nomerge vdso32=0 vsyscall=none findiso=\${iso_path}
+        linux /live/vmlinuz-${VAR_KERNEL} boot=live verify-checksums components splash nopersistence toram ramdisk-size=1024M swap=true noautologin nottyautologin nox11autologin noeject locales=en_US.UTF-8 keyboard-layouts=de keyboard-model=pc105 keyboard-options= keyboard-variants= timezone=Etc/UTC apparmor=1 security=apparmor audit_backlog_limit=262144 audit=1 debugfs=off efi=disable_early_pci_dma hardened_usercopy=1 ia32_emulation=0 init_on_alloc=1 init_on_free=1 iommu.passthrough=0 iommu.strict=1 iommu=force kfence.sample_interval=100 kvm.nx_huge_pages=force l1d_flush=on lockdown=confidentiality loglevel=0 mitigations=auto,nosmt mmio_stale_data=full,force nosmt=force oops=panic page_alloc.shuffle=1 page_poison=1 panic=0 pti=on random.trust_bootloader=off random.trust_cpu=off randomize_kstack_offset=on retbleed=auto,nosmt rodata=on slab_nomerge vdso32=0 vsyscall=none findiso=\${iso_path}
         initrd /live/initrd.img-${VAR_KERNEL}
 }
 EOF
@@ -59,9 +62,12 @@ EOF
 }" "${VAR_HANDLER_BUILD_DIR}/config/bootloaders/grub-pc/grub.cfg"
 
     rm -f "${tmp_entry}"
+
   else
+
     # shellcheck disable=SC1003
     sed -i '/#MUST_BE_REPLACED/c\\' "${VAR_HANDLER_BUILD_DIR}/config/bootloaders/grub-efi/grub.cfg"
+
   fi
 
   printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ %s successfully applied. \e[0m\n" "${BASH_SOURCE[0]}"

lib/lib_ciss_upgrades.sh

@@ -0,0 +1,44 @@
+#!/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
+
+guard_sourcing
+
+#######################################
+# Wrapper to update '/usr/lib/live/build/...' scripts.
+# Globals:
+#   SCRIPT_BASEPATH
+#   VAR_BUILD_LOG
+#   VAR_HANDLER_BUILD_DIR
+# Arguments:
+#   None
+# Returns:
+#   0: on success
+#######################################
+ciss_upgrades() {
+  printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 %s starting ... \e[0m\n" "${BASH_SOURCE[0]}"
+
+  if [[ ! -e /usr/lib/live/build/binary_rootfs.original ]]; then
+    cp /usr/lib/live/build/binary_rootfs /usr/lib/live/build/binary_rootfs.original
+    chmod 0444 /usr/lib/live/build/binary_rootfs.original
+  fi
+
+  rm -f /usr/lib/live/build/binary_rootfs
+  install -m 0755 -o root -g root "${VAR_WORKDIR}/scripts/usr/lib/live/build/binary_rootfs.sh" /usr/lib/live/build/binary_rootfs
+
+  printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ %s successfully applied. \e[0m\n" "${BASH_SOURCE[0]}"
+
+  return 0
+}
+### Prevents accidental 'unset -f'.
+# shellcheck disable=SC2034
+readonly -f ciss_upgrades
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

lib/lib_hardening_ultra.sh

@@ -184,7 +184,7 @@ hardening_ultra() {
 
   fi
 
-
+  ### /config/includes.chroot/root/.ssh
   if [[ ! -d "${VAR_HANDLER_BUILD_DIR}/config/includes.chroot/root/.ssh"  ]]; then
 
     mkdir -p  "${VAR_HANDLER_BUILD_DIR}/config/includes.chroot/root/.ssh"
@@ -194,15 +194,27 @@ hardening_ultra() {
 
     declare -r sshport="${VAR_SSHPORT:-22}"
 
-    sed -i "s|^port      = MUST_BE_SET|port      = ${sshport}|" "${VAR_HANDLER_BUILD_DIR}/config/hooks/live/9950_fail2ban_hardening.chroot"
+    ### /config/includes.chroot/etc/ssh/sshd_config
-    sed -i "s|^declare -r SSHPORT=\"MUST_BE_SET\"|declare -r SSHPORT=\"${sshport}\"|" "${VAR_HANDLER_BUILD_DIR}/config/hooks/live/0900_ufw_setup.chroot"
+    # shellcheck disable=SC2155
-    sed -i "s|^Port MUST_BE_CHANGED|Port ${sshport}|" "${VAR_HANDLER_BUILD_DIR}/config/includes.chroot/etc/ssh/sshd_config"
+    declare pad="$(printf '%-29s' 'Port')"
+    sed -i -E "/PORT_MUST_BE_CHANGED/ s|.*|${pad}${sshport}|" "${VAR_HANDLER_BUILD_DIR}/config/includes.chroot/etc/ssh/sshd_config"
 
+    ### /config/hooks/live/9950_hardening_fail2ban.chroot
+    sed -i "s|PORT_MUST_BE_SET|${sshport}|g" "${VAR_HANDLER_BUILD_DIR}/config/hooks/live/9950_hardening_fail2ban.chroot"
+
+    ### /config/hooks/live/0900_ufw_setup.chroot
+    sed -i "s|SSHPORT_MUST_BE_SET|${sshport}|g" "${VAR_HANDLER_BUILD_DIR}/config/hooks/live/0900_ufw_setup.chroot"
+
+
+    ### /config/hooks/live/0900_ufw_setup.chroot
     if [[ ${#ARY_HANDLER_JUMPHOST[@]} -gt 0 ]]; then
 
       declare file="${VAR_HANDLER_BUILD_DIR}/config/hooks/live/0900_ufw_setup.chroot"
+
       sed -i "/^ufw allow in \"\${SSHPORT}\"\/tcp comment 'Incoming SSH (Custom-Port)'$/d" "${file}"
+
       declare line
+
       # shellcheck disable=SC2312
       line=$(grep -n '^ufw default deny forward$' "${file}" | cut -d: -f1)
 
@@ -212,10 +224,15 @@ hardening_ultra() {
       fi
 
       declare host
+
       for host in "${ARY_HANDLER_JUMPHOST_UNIQUE[@]}"; do
+
         ((line++))
+
         sed -i "${line}a ufw allow from ${host} to any port ${sshport} proto tcp comment \"Incoming SSH ([${host}]:${sshport})\"" "${file}"
+
       done
+
     fi
 
   else
@@ -226,14 +243,25 @@ hardening_ultra() {
 
     declare -r sshport="${VAR_SSHPORT:-22}"
 
-    sed -i "s|^port      = MUST_BE_SET|port      = ${sshport}|" "${VAR_HANDLER_BUILD_DIR}/config/hooks/live/9950_fail2ban_hardening.chroot"
+    ### /config/includes.chroot/etc/ssh/sshd_config
-    sed -i "s|^declare -r SSHPORT=\"MUST_BE_SET\"|declare -r SSHPORT=\"${sshport}\"|" "${VAR_HANDLER_BUILD_DIR}/config/hooks/live/0900_ufw_setup.chroot"
+    # shellcheck disable=SC2155
-    sed -i "s|^Port MUST_BE_CHANGED|Port ${sshport}|" "${VAR_HANDLER_BUILD_DIR}/config/includes.chroot/etc/ssh/sshd_config"
+    declare pad="$(printf '%-29s' 'Port')"
+    sed -i -E "/PORT_MUST_BE_CHANGED/ s|.*|${pad}${sshport}|" "${VAR_HANDLER_BUILD_DIR}/config/includes.chroot/etc/ssh/sshd_config"
 
+    ### /config/hooks/live/9950_hardening_fail2ban.chroot
+    sed -i "s|PORT_MUST_BE_SET|${sshport}|g" "${VAR_HANDLER_BUILD_DIR}/config/hooks/live/9950_hardening_fail2ban.chroot"
+
+    ### /config/hooks/live/0900_ufw_setup.chroot
+    sed -i "s|SSHPORT_MUST_BE_SET|${sshport}|g" "${VAR_HANDLER_BUILD_DIR}/config/hooks/live/0900_ufw_setup.chroot"
+
+
+    ### /config/hooks/live/0900_ufw_setup.chroot
     if [[ ${#ARY_HANDLER_JUMPHOST_UNIQUE[@]} -gt 0 ]]; then
 
       declare file="${VAR_HANDLER_BUILD_DIR}/config/hooks/live/0900_ufw_setup.chroot"
+
       sed -i "/^ufw allow in \"\${SSHPORT}\"\/tcp comment 'Incoming SSH (Custom-Port)'$/d" "${file}"
+
       declare line
       # shellcheck disable=SC2312
       line=$(grep -n '^ufw default deny forward$' "${file}" | cut -d: -f1)
@@ -244,46 +272,67 @@ hardening_ultra() {
       fi
 
       declare host
+
       for host in "${ARY_HANDLER_JUMPHOST_UNIQUE[@]}"; do
+
         ((line++))
         sed -i "${line}a ufw allow from ${host} to any port ${sshport} proto tcp comment \"Incoming SSH ([${host}]:${sshport})\"" "${file}"
+
       done
+
     fi
+
   fi
+
   printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ Updating SSH Keys, Ports done. \e[0m\n"
 
+
+  ### /config/includes.chroot/etc/hosts.allow
   if [[ -f "${VAR_WORKDIR}/hosts.allow" ]]; then
+
     printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 SSH Hardening Ultra ... \e[0m\n"
+
     cp -af "${VAR_WORKDIR}/hosts.allow" "${VAR_HANDLER_BUILD_DIR}/config/includes.chroot/etc"
     cp -af "${VAR_WORKDIR}/hosts.deny" "${VAR_HANDLER_BUILD_DIR}/config/includes.chroot/etc"
+
     chmod 0644 "${VAR_HANDLER_BUILD_DIR}/config/includes.chroot/etc/hosts.allow"
     chmod 0644 "${VAR_HANDLER_BUILD_DIR}/config/includes.chroot/etc/hosts.deny"
+
     rm -f "${VAR_WORKDIR}/hosts.allow"
     rm -f "${VAR_WORKDIR}/hosts.deny"
+
     printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ SSH Hardening Ultra done.\e[0m\n"
+
   fi
 
+
+  ### /config/hooks/live/9950_hardening_fail2ban.chroot
   if ((${#ARY_HANDLER_JUMPHOST[@]} > 0)); then
+
     printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 Updating fail2ban Jumphosts IPs ... \e[0m\n"
+
     # Join array entries with spaces, preserving any newlines
     declare ips="${ARY_HANDLER_JUMPHOST[*]}"
+
     # Flatten to a single line and strip literal brackets []
     declare flat_ips
     # shellcheck disable=SC2312
     flat_ips=$(printf "%s" "${ips}" | tr '\n' ' ' | tr -d '[]')
     # flat_ips now contains e.g., "123.128.111.42 2a03:ffff:0815:4711:... 2a03:.../64"
 
-    # Perform an in-place replacement of MUST_BE_SET with the cleaned list
+    # Perform an in-place replacement of IGNORE_IP_MUST_BE_SET with the cleaned list
-    sed -i -e "s|^\(ignoreip[[:space:]]*=[[:space:]]*127\.0\.0\.0/8 ::1[[:space:]]*\)MUST_BE_SET|\1${flat_ips}|" \
+    sed -i -E "/^[[:space:]]*ignoreip[[:space:]]*=/ s|IGNORE_IP_MUST_BE_SET|${flat_ips}|g" "${VAR_HANDLER_BUILD_DIR}/config/hooks/live/9950_hardening_fail2ban.chroot"
-        "${VAR_HANDLER_BUILD_DIR}/config/hooks/live/9950_fail2ban_hardening.chroot"
+
     printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ Updating fail2ban Jumphosts IPs done. \e[0m\n"
+
   else
+
     printf "\e[93m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 No jump hosts configured, removing placeholder ... \e[0m\n"
-    sed -i \
+
-        -e "s|^\(ignoreip[[:space:]]*=[[:space:]]*127\.0\.0\.0/8 ::1\)[[:space:]]*MUST_BE_SET|\1|" \
+    sed -i 's/IGNORE_IP_MUST_BE_SET//g' "${VAR_HANDLER_BUILD_DIR}/config/hooks/live/9950_hardening_fail2ban.chroot"
-        -e "s|\(ignoreip[[:space:]]*=[[:space:]]*127\.0\.0\.0/8 ::1\)[[:space:]]*$|\1|" \
+
-        "${VAR_HANDLER_BUILD_DIR}/config/hooks/live/9950_fail2ban_hardening.chroot"
     printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ Placeholder removed. \e[0m\n"
+
   fi
 }
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

lib/lib_lb_build_start.sh

@@ -15,11 +15,14 @@ guard_sourcing
 #######################################
 # Wrapper to write a new 'lb config' environment.
 # Globals:
-#   ERR_UNCRITICAL
+#   SCRIPT_BASEPATH
 #   VAR_BUILD_LOG
 #   VAR_HANDLER_BUILD_DIR
 # Arguments:
 #   None
+# Returns:
+#   0: on success
+#   ERR_UNCRITICAL: on failure
 #######################################
 lb_build_start() {
   printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🔨 Start Build... Log file: %s \e[0m\n" "${VAR_BUILD_LOG}"
@@ -51,5 +54,10 @@ lb_build_start() {
     exit "${ERR_UNCRITICAL}"
 
   fi
+
+  return 0
 }
+### Prevents accidental 'unset -f'.
+# shellcheck disable=SC2034
+readonly -f lb_build_start
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

lib/lib_lb_config_write_trixie.sh

@@ -40,8 +40,8 @@ lb_config_write_trixie() {
     --backports true \
     --binary-filesystem fat32 \
     --binary-image iso-hybrid \
-    --bootappend-install "auto=true priority=critical clock-setup/utc=true console-setup/ask_detect=false debian-installer/country=US debian-installer/language=en debian-installer/locale=en_US.UTF-8 keyboard-configuration/xkb-keymap=de keyboard-configuration/model=pc105 localechooser/supported-locales=en_US.UTF-8 time/zone=Etc/UTC splash audit_backlog_limit=8192 audit=1 debugfs=off efi=disable_early_pci_dma efi_no_storage_paranoia hardened_usercopy=1 ia32_emulation=0 init_on_alloc=1 init_on_free=1 iommu=force kfence.sample_interval=100 kvm.nx_huge_pages=force l1d_flush=on lockdown=confidentiality loglevel=0 mce=0 mitigations=auto,nosmt mmio_stale_data=full,nosmt oops=panic page_alloc.shuffle=1 page_poison=1 panic=-1 pti=on random.trust_bootloader=off random.trust_cpu=off randomize_kstack_offset=on retbleed=auto,nosmt rodata=on tsx=off vdso32=0 vsyscall=none" \
+    --bootappend-install "auto=true priority=critical clock-setup/utc=true console-setup/ask_detect=false debian-installer/country=US debian-installer/language=en debian-installer/locale=en_US.UTF-8 keyboard-configuration/xkb-keymap=de keyboard-configuration/model=pc105 localechooser/supported-locales=en_US.UTF-8 time/zone=Etc/UTC splash audit_backlog_limit=262144 audit=1 debugfs=off efi=disable_early_pci_dma efi_no_storage_paranoia hardened_usercopy=1 ia32_emulation=0 init_on_alloc=1 init_on_free=1 iommu=force kfence.sample_interval=100 kvm.nx_huge_pages=force l1d_flush=on lockdown=confidentiality loglevel=0 mce=0 mitigations=auto,nosmt mmio_stale_data=full,nosmt oops=panic page_alloc.shuffle=1 page_poison=1 panic=-1 pti=on random.trust_bootloader=off random.trust_cpu=off randomize_kstack_offset=on retbleed=auto,nosmt rodata=on tsx=off vdso32=0 vsyscall=none" \
-    --bootappend-live "boot=live components keyboard-layouts=de keyboard-model=pc105 keyboard-options= keyboard-variants= locales=en_US.UTF-8 noautologin nottyautologin nox11autologin noeject nopersistence ramdisk-size=1024M splash swap=true timezone=Etc/UTC toram verify-checksums apparmor=1 security=apparmor audit_backlog_limit=8192 audit=1 debugfs=off efi=disable_early_pci_dma hardened_usercopy=1 ia32_emulation=0 init_on_alloc=1 init_on_free=1 iommu.passthrough=0 iommu.strict=1 iommu=force kfence.sample_interval=100 kvm.nx_huge_pages=force l1d_flush=on lockdown=confidentiality loglevel=0 mitigations=auto,nosmt mmio_stale_data=full,force nosmt=force oops=panic page_alloc.shuffle=1 page_poison=1 panic=0 pti=on random.trust_bootloader=off random.trust_cpu=off randomize_kstack_offset=on retbleed=auto,nosmt rodata=on slab_nomerge vdso32=0 vsyscall=none" \
+    --bootappend-live "boot=live components keyboard-layouts=de keyboard-model=pc105 keyboard-options= keyboard-variants= locales=en_US.UTF-8 noautologin nottyautologin nox11autologin noeject nopersistence ramdisk-size=1024M splash swap=true timezone=Etc/UTC toram verify-checksums apparmor=1 security=apparmor audit_backlog_limit=262144 audit=1 debugfs=off efi=disable_early_pci_dma hardened_usercopy=1 ia32_emulation=0 init_on_alloc=1 init_on_free=1 iommu.passthrough=0 iommu.strict=1 iommu=force kfence.sample_interval=100 kvm.nx_huge_pages=force l1d_flush=on lockdown=confidentiality loglevel=0 mitigations=auto,nosmt mmio_stale_data=full,force nosmt=force oops=panic page_alloc.shuffle=1 page_poison=1 panic=0 pti=on random.trust_bootloader=off random.trust_cpu=off randomize_kstack_offset=on retbleed=auto,nosmt rodata=on slab_nomerge vdso32=0 vsyscall=none" \
     --bootloaders grub-efi \
     --cache true \
     --checksums sha512 sha256 md5 \
@@ -107,11 +107,34 @@ lb_config_write_trixie() {
   sed -i 's/LB_CHECKSUMS="sha512 md5"/LB_CHECKSUMS="sha512 sha384 sha256"/1' ./config/binary
   sed -i 's/LB_DM_VERITY=""/LB_DM_VERITY="false"/1' ./config/binary
 
-  mkdir -p "${VAR_HANDLER_BUILD_DIR}"/config/includes.chroot/usr/lib/live/boot
+  mkdir -p "${VAR_HANDLER_BUILD_DIR}/config/includes.chroot/usr/lib/live/boot"
   cp -a "${VAR_WORKDIR}/scripts/live-boot/0030-verify-checksums" "${VAR_HANDLER_BUILD_DIR}/config/includes.chroot/usr/lib/live/boot/0030-verify-checksums"
   chmod 0755 "${VAR_HANDLER_BUILD_DIR}/config/includes.chroot/usr/lib/live/boot/0030-verify-checksums"
   chown root:root "${VAR_HANDLER_BUILD_DIR}/config/includes.chroot/usr/lib/live/boot/0030-verify-checksums"
 
+  ### https://wiki.debian.org/ReproducibleInstalls/LiveImages
+  ### https://reproducible-builds.org/docs/system-images/
+  ### https://gitlab.tails.boum.org/tails/tails/-/blob/stable/config/chroot_local-includes/usr/share/tails/build/mksquashfs-excludes
+  mkdir -p "${VAR_HANDLER_BUILD_DIR}/config/rootfs"
+  cat << 'EOF' >| "${VAR_HANDLER_BUILD_DIR}/config/rootfs/excludes"
+boot/initrd.img-*
+boot/vmlinux-*
+boot/vmlinuz-*
+debootstrap
+debootstrap/*
+root/.wget-hsts
+tmp/*
+usr/lib/firmware/amd/*
+usr/lib/firmware/amd-ucode/*
+usr/lib/firmware/amdtee/*
+usr/lib/firmware/intel-ucode/*
+var/cache/apt/pkgcache.bin
+var/cache/apt/srcpkgcache.bin
+var/lib/apt/lists/*
+var/lib/initramfs-tools/*-amd64
+EOF
+  chmod 0644 "${VAR_HANDLER_BUILD_DIR}/config/rootfs/excludes"
+
   printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ Writing new config done.\e[0m\n"
 
   return 0

lib/lib_note_target.sh

@@ -53,6 +53,18 @@ note_target() {
   https://coresecret.eu/spenden/
 ################################################################################
 EOF
+  chmod 0444 "${VAR_HANDLER_BUILD_DIR}/config/includes.chroot/root/ciss-debian-live-builder.txt"
+
+  cat << EOF >| "${VAR_HANDLER_BUILD_DIR}/config/includes.chroot/root/ciss-debian-live-builder.env"
+export CDLB_VERSION="${VAR_VERSION}"
+export CDLB_GIT_REL="${VAR_GIT_REL}"
+export CDLB_CR_DATE="${VAR_DATE_INFO}"
+export CDLB_CR_HOST="${VAR_HOST}"
+export CDLB_BASHVER="${VAR_BASH_VER}"
+export CDLB_DS_VER="${VAR_DS_VER}"
+export CDLB_LB_VER="${VAR_LB_VER}"
+EOF
+  chmod 0444 "${VAR_HANDLER_BUILD_DIR}/config/includes.chroot/root/ciss-debian-live-builder.env"
 
   printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ %s successfully applied. \e[0m\n" "${BASH_SOURCE[0]}"
 

lib/lib_sanitizer.sh

@@ -13,9 +13,11 @@
 guard_sourcing
 
 #######################################
-# Argument Check Wrapper
+# Arguments check wrapper.
+# Globals:
+#   None
 # Arguments:
-#   $1: "$@" of ./ciss_live_builder.sh
+#   1: "$@" of ./ciss_live_builder.sh
 #######################################
 arg_check() {
   declare a
@@ -25,35 +27,49 @@ arg_check() {
   done
   set -- "${sanitized_args[@]}"
 }
+### Prevents accidental 'unset -f'.
+# shellcheck disable=SC2034
+readonly -f arg_check
 
 #######################################
-# Function to sanitize a single argument
+# Function to sanitize a single argument,
 # Globals:
-#   ERR_INVLD_CHAR
 #   LOG_ERROR
 # Arguments:
-#   $1: Argument to check
+#   1: Argument to check
+# Returns:
+#   0: on success
+#   ERR_INVLD_CHAR: on failure
 #######################################
 sanitize_arg() {
   declare input="${1}"
   declare disallowed_ctrl=""
+
   ### Step 1: Check for control characters
   if printf '%s' "${input}" | grep -qP '[[:cntrl:]]'; then
+
+    # shellcheck disable=SC2312
     disallowed_ctrl=$(printf '%s' "${input}" | sed -n 's/[^[:cntrl:]]//gp' | sed $'s/./&\\n/g' \
-      | while read -r c; do printf "%02X " "'$c"; done)
+      | while read -r c; do printf "%02X " "'${c}"; done)
+
     {
       printf "❌ Control character   : '%s'. \n" "${disallowed_ctrl}"
       printf "❌         in argument : '%s'. \n" "${input}"
       printf "❌ Allowed Characters  : 'a-z A-Z 0-9 . _ / = [ ] : \" - + space' \n"
       printf "\n"
     } >> "${LOG_ERROR}"
+
     boot_screen_cleaner
+
     printf "\e[91m❌ Control character   : '%s'. \e[0m\n" "${disallowed_ctrl}" >&2
     printf "\e[91m❌         in argument : '%s'. \e[0m\n" "${input}" >&2
     printf "\e[91m❌ Allowed Characters  : 'a-z A-Z 0-9 . _ / = [ ] : \" - + space' \e[0m\n" >&2
+
     # shellcheck disable=SC2162
     read -p  $'\e[92m✅ Press \'ENTER\' to exit the script ... \e[0m'
+
     exit "${ERR_INVLD_CHAR}"
+
   fi
 
   ### Step 2: Define allowed characters:
@@ -61,6 +77,7 @@ sanitize_arg() {
   declare allowed='a-zA-Z0-9._/=\[\]:"\-+ '
   declare disallowed
   disallowed=$(printf '%s' "${input}" | tr -d "${allowed}")
+
   if [[ -n ${disallowed} ]]; then
     {
       printf "❌ Invalid character   : '%s'. \n" "${disallowed//?/& }"
@@ -68,22 +85,36 @@ sanitize_arg() {
       printf "❌ Allowed Characters  : 'a-z A-Z 0-9 . _ / = [ ] : \" - + space' \n"
       printf "\n"
     } >> "${LOG_ERROR}"
+
     boot_screen_cleaner
+
     printf "\e[91m❌ Invalid character   : '%s'. \e[0m\n" "${disallowed//?/& }" >&2
     printf "\e[91m❌         in argument : '%s'. \e[0m\n" "${input}" >&2
     printf "\e[91m❌ Allowed Characters  : 'a-z A-Z 0-9 . _ / = [ ] : \" - + space' \e[0m\n" >&2
+
     # shellcheck disable=SC2162
     read -p  $'\e[92m✅ Press \'ENTER\' to exit the script ... \e[0m'
+
     exit "${ERR_INVLD_CHAR}"
+
   else
+
     printf '%s' "${input}"
+
   fi
+
+  return 0
 }
+### Prevents accidental 'unset -f'.
+# shellcheck disable=SC2034
+readonly -f sanitize_arg
 
 #######################################
-# Function to remove any character not in the allowed set
+# Function to remove any character not in the allowed set.
+# Globals:
+#   None
 # Arguments:
-#   $1: String to Sanitize
+#   1: String to Sanitize
 #######################################
 sanitize_string() {
   declare input="$1"
@@ -92,15 +123,23 @@ sanitize_string() {
   declare allowed='a-zA-Z0-9._/=\[\]:"\-+ '
   printf '%s' "${input}" | tr -cd "${allowed}"
 }
+### Prevents accidental 'unset -f'.
+# shellcheck disable=SC2034
+readonly -f sanitize_string
 
 #######################################
-# Function to escape all shell metacharacters
+# Function to escape all shell metacharacters.
+# Globals:
+#   None
 # Arguments:
-#   $1: String to Sanitize
+#   1: String to Sanitize
 #######################################
 sanitize_shell_literal() {
   declare input="$1"
   ### %q quotes the string so that the shell re-reads it as the original literal
   printf '%q' "${input}"
 }
+### Prevents accidental 'unset -f'.
+# shellcheck disable=SC2034
+readonly -f sanitize_shell_literal
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

lib/lib_source_guard.sh

@@ -11,7 +11,9 @@
 # SPDX-Security-Contact: security@coresecret.eu
 
 #######################################
-# Prevent the file to be sourced twice.
+# Prevents the file to be sourced twice.
+# Globals:
+#   None
 # Arguments:
 #   1: File to source.
 #######################################
@@ -25,4 +27,7 @@ source_guard() {
     . "${var_file}"
   fi
 }
+### Prevents accidental 'unset -f'.
+# shellcheck disable=SC2034
+readonly -f source_guard
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

lib/lib_update_microcode.sh

@@ -0,0 +1,43 @@
+#!/bin/bash
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-10-07; 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
+
+#######################################
+# Generates artifact inside the target for microcode updates.
+# Globals:
+#   BASH_SOURCE
+#   VAR_ARCHITECTURE
+#   VAR_HANDLER_BUILD_DIR
+# Arguments:
+#   None
+# Returns:
+#   0: on success
+#######################################
+update_microcode() {
+  printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 %s starting ... \e[0m\n" "${BASH_SOURCE[0]}"
+
+  if [[ "${VAR_ARCHITECTURE,,}" == "amd64" ]]; then
+
+    cat << EOF >| "${VAR_HANDLER_BUILD_DIR}/config/includes.chroot/root/.architecture"
+${VAR_ARCHITECTURE,,}
+EOF
+    chmod 0600 "${VAR_HANDLER_BUILD_DIR}/config/includes.chroot/root/.architecture"
+
+  fi
+
+  printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ %s successfully applied. \e[0m\n" "${BASH_SOURCE[0]}"
+
+  return 0
+}
+### Prevents accidental 'unset -f'.
+# shellcheck disable=SC2034
+readonly -f update_microcode
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

lib/lib_usage.sh

@@ -12,8 +12,12 @@
 
 #######################################
 # Usage Wrapper CISS.debian.live.builder
+# Globals:
+#   None
 # Arguments:
-#   0: Script name
+#   None
+# Returns:
+#   0: on success
 #######################################
 usage() {
   # shellcheck disable=SC2155
@@ -35,13 +39,13 @@ usage() {
   # shellcheck disable=SC2155
   declare var_header=$(center "CLB(1)                        CISS.debian.live.builder                        CLB(1)" "${var_cols}")
   # shellcheck disable=SC2155
-  declare var_footer=$(center "V8.13.142.2025.10.14                        2025-10-07                        CLB(1)" "${var_cols}")
+  declare var_footer=$(center "V8.13.294.2025.10.28                        2025-10-07                        CLB(1)" "${var_cols}")
 
   {
     echo -e "\e[1;97m${var_header}\e[0m"
     echo
     echo -e "\e[92mCISS.debian.live.builder from https://git.coresecret.dev/msw \e[0m"
-    echo -e "\e[92mMaster V8.13.142.2025.10.14\e[0m"
+    echo -e "\e[92mMaster V8.13.294.2025.10.28\e[0m"
     echo -e "\e[92mA lightweight Shell Wrapper for building a hardened Debian Live ISO Image.\e[0m"
     echo
     echo -e "\e[97m(c) Marc S. Weidner, 2018 - 2025 \e[0m"
@@ -162,5 +166,10 @@ usage() {
     echo
     echo -e "\e[1;97m${var_footer}\e[0m"
   } | less -R
+
+  return 0
 }
+### Prevents accidental 'unset -f'.
+# shellcheck disable=SC2034
+readonly -f usage
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh