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Improve systemd hardening #180

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merged 3 commits into from
Nov 20, 2022
Merged

Improve systemd hardening #180

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f6f814e
Update systemd.service
alexAubin Jan 19, 2022
b6af3eb
systemd conf: Add AF_NETLINK address family
alexAubin Jan 25, 2022
028e730
Update conf/systemd.service
alexAubin Nov 20, 2022
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8 changes: 6 additions & 2 deletions conf/systemd.service
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Expand Up @@ -18,16 +18,20 @@ StandardError=inherit
NoNewPrivileges=yes
PrivateTmp=yes
PrivateDevices=yes
RestrictAddressFamilies=AF_UNIX AF_INET AF_INET6
RestrictAddressFamilies=AF_UNIX AF_INET AF_INET6 AF_NETLINK
RestrictNamespaces=yes
RestrictRealtime=yes
DevicePolicy=closed
ProtectClock=yes
ProtectHostname=yes
ProtectProc=invisible
ProtectSystem=full
ProtectControlGroups=yes
ProtectKernelModules=yes
ProtectKernelTunables=yes
LockPersonality=yes
SystemCallFilter=~@clock @debug @module @mount @obsolete @reboot @setuid @swap
SystemCallArchitectures=native
SystemCallFilter=~@clock @debug @module @mount @obsolete @reboot @setuid @swap @cpu-emulation @privileged

# Denying access to capabilities that should not be relevant for webapps
# Doc: https://man7.org/linux/man-pages/man7/capabilities.7.html
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