Edit

[EDIT] FILE: dbus-org.freedesktop.hostname1.service

#  SPDX-License-Identifier: LGPL-2.1+
#
#  This file is part of systemd.
#
#  systemd is free software; you can redistribute it and/or modify it
#  under the terms of the GNU Lesser General Public License as published by
#  the Free Software Foundation; either version 2.1 of the License, or
#  (at your option) any later version.

[Unit]
Description=Hostname Service
Documentation=man:systemd-hostnamed.service(8) man:hostname(5) man:machine-info(5)
Documentation=https://www.freedesktop.org/wiki/Software/systemd/hostnamed

[Service]
ExecStart=/usr/lib/systemd/systemd-hostnamed
BusName=org.freedesktop.hostname1
WatchdogSec=3min
CapabilityBoundingSet=CAP_SYS_ADMIN
PrivateTmp=yes
PrivateDevices=yes
PrivateNetwork=yes
ProtectSystem=strict
ProtectHome=yes
ProtectControlGroups=yes
ProtectKernelTunables=yes
ProtectKernelModules=yes
MemoryDenyWriteExecute=yes
RestrictRealtime=yes
RestrictNamespaces=yes
RestrictAddressFamilies=AF_UNIX
RestrictSUIDSGID=yes
SystemCallFilter=@system-service sethostname
SystemCallErrorNumber=EPERM
SystemCallArchitectures=native
LockPersonality=yes
ReadWritePaths=/etc

CANCEL