V8.04.002.2025.08.11

Signed-off-by: Marc S. Weidner <msw@coresecret.dev>

scripts/0010_dhcp_supersede.sh

@@ -31,19 +31,31 @@ EOF
 
 
 cat << 'EOF' >> "${VAR_HANDLER_BUILD_DIR}"/config/includes.chroot/etc/dhcpcd.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
 
-### Global defaults for all interfaces
-option fqdn.fqdn
+### Global defaults for all interfaces.
 option host_name
 option domain_name
 option domain_search
-fqdn 2
 
-# Enforce static DNS and prevent dhcpcd from writing resolv.conf
+### Ask server to update both A and PTR via FQDN (RFC 4702 semantics).
+fqdn both
+
+### Enforce static DNS and prevent dhcpcd from writing 'resolv.conf'.
 nooption domain_name_servers
 nohook resolv.conf rdnssd
 
-# Static resolvers (IPv4).
+### Static resolvers (IPv4).
+### (This does NOT write '/etc/resolv.conf' because of nohook above.)
 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