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CISS.debian.live.builder/scripts/0010_dhcp_supersede.sh
Marc S. Weidner d73efb3a89
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V8.04.002.2025.08.11
Signed-off-by: Marc S. Weidner <msw@coresecret.dev>
2025-08-12 15:46:14 +02:00

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#!/bin/bash
# SPDX-Version: 3.0
# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
# SPDX-FileType: SOURCE
# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
# SPDX-PackageName: CISS.debian.live.builder
# SPDX-Security-Contact: security@coresecret.eu
set -C -e -u -o pipefail
printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
if [[ ! -d "${VAR_HANDLER_BUILD_DIR}"/config/includes.chroot/etc/dhcp ]]; then
mkdir -p "${VAR_HANDLER_BUILD_DIR}"/config/includes.chroot/etc/dhcp
fi
cat << 'EOF' >> "${VAR_HANDLER_BUILD_DIR}"/config/includes.chroot/etc/dhcp/dhclient.conf
# Custom dhclient config to override DHCP DNS
# dns01.eddns.eu, dns02.eddns.de, dns03.eddns.eu;
supersede domain-name-servers 135.181.207.105, 89.58.62.53, 138.199.237.109;
# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf
EOF
cat << 'EOF' >> "${VAR_HANDLER_BUILD_DIR}"/config/includes.chroot/etc/dhcpcd.conf
# Enforce static DNS and prevent dhcpcd from writing resolv.conf
nooption domain_name_servers
nohook resolv.conf
# Static resolvers (IPv4).
static domain_name_servers=135.181.207.105 89.58.62.53 138.199.237.109
# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf
EOF
cat << 'EOF' >| "${VAR_HANDLER_BUILD_DIR}"/config/includes.chroot/etc/resolv.conf
# SPDX-Version: 3.0
# SPDX-CreationInfo: 2025-08-12; WEIDNER, Marc S.; <msw@coresecret.dev>
# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
# SPDX-FileType: SOURCE
# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
# SPDX-PackageName: CISS.debian.live.builder
# SPDX-Security-Contact: security@coresecret.eu
# static /etc/resolv.conf (CISS)
nameserver 135.181.207.105
nameserver 89.58.62.53
nameserver 138.199.237.109
options edns0
# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf
EOF
printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' successful applied. \e[0m\n" "${0}"
exit 0
# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh