ddclient/sample-etc_systemd.service
Indrajit Raychaudhuri a624cb6c15 systemd: Add systemd service settings for better security
This adds additional settings to improve the security
of 'ddclient.service'.

The settings are based on basic [systemd guidelines][1]
and other security-related [guide][2] and [roadmap][3].

[1]: https://www.freedesktop.org/software/systemd/man/systemd.exec.html
[2]: https://www.redhat.com/sysadmin/systemd-secure-services
[3]: https://wiki.debian.org/ReleaseGoals/SystemdAnalyzeSecurity
2024-12-26 19:06:49 -06:00

39 lines
818 B
Desktop File

[Unit]
Description=Dynamic DNS Update Client
Wants=network-online.target
After=network-online.target nss-lookup.target
[Service]
Type=exec
Environment=daemon_interval=5m
ExecStart=/usr/bin/ddclient --daemon ${daemon_interval} --foreground
Restart=on-failure
SystemCallArchitectures=native
SystemCallFilter=@system-service
SystemCallFilter=~ @privileged @resources
CapabilityBoundingSet=
NoNewPrivileges=yes
ProtectControlGroups=yes
ProtectKernelTunables=yes
ProtectKernelModules=yes
ProtectKernelLogs=yes
ProtectProc=invisible
ProtectClock=yes
ProtectHostname=yes
ProtectSystem=yes
ProtectHome=yes
PrivateTmp=yes
PrivateDevices=yes
MemoryDenyWriteExecute=true
RestrictRealtime=yes
RestrictSUIDSGID=yes
RestrictNamespaces=yes
RestrictAddressFamilies=AF_UNIX AF_INET AF_INET6
[Install]
WantedBy=multi-user.target