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Editing: systemd-resolved.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=Network Name Resolution
Documentation=man:systemd-resolved.service(8)
Documentation=https://www.freedesktop.org/wiki/Software/systemd/resolved
Documentation=https://www.freedesktop.org/wiki/Software/systemd/writing-network-configuration-managers
Documentation=https://www.freedesktop.org/wiki/Software/systemd/writing-resolver-clients
DefaultDependencies=no
After=systemd-networkd.service
Before=network.target nss-lookup.target shutdown.target
Conflicts=shutdown.target
Wants=nss-lookup.target

[Service]
Type=notify
Restart=always
RestartSec=0
ExecStart=!!/usr/lib/systemd/systemd-resolved
WatchdogSec=3min
User=systemd-resolve
CapabilityBoundingSet=CAP_SETPCAP CAP_NET_RAW CAP_NET_BIND_SERVICE
AmbientCapabilities=CAP_SETPCAP CAP_NET_RAW CAP_NET_BIND_SERVICE
PrivateTmp=yes
PrivateDevices=yes
ProtectSystem=strict
ProtectHome=yes
ProtectControlGroups=yes
ProtectKernelTunables=yes
ProtectKernelModules=yes
MemoryDenyWriteExecute=yes
RestrictRealtime=yes
RestrictNamespaces=yes
RestrictAddressFamilies=AF_UNIX AF_NETLINK AF_INET AF_INET6
SystemCallFilter=@system-service
SystemCallErrorNumber=EPERM
SystemCallArchitectures=native
LockPersonality=yes
RestrictSUIDSGID=yes
RuntimeDirectory=systemd/resolve
RuntimeDirectoryPreserve=yes

[Install]
WantedBy=multi-user.target
Alias=dbus-org.freedesktop.resolve1.service

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