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File nsd.service of Package nsd

[Unit]
Description=NSD DNS Server
After=syslog.target network.target

[Service]
Type=simple
PIDFile=/run/nsd/nsd.pid
ExecStart=/usr/sbin/nsd -d -c /etc/nsd/nsd.conf
ExecStopPost=/bin/rm -f /var/lib/nsd/xfrd.state
User=_nsd
Group=_nsd

# added automatically, for details please see
# https://en.opensuse.org/openSUSE:Security_Features#Systemd_hardening_effort
ProtectSystem=full
ProtectHome=true
PrivateDevices=true
ProtectHostname=true
ProtectClock=true
ProtectKernelTunables=true
ProtectKernelModules=true
ProtectKernelLogs=true
ProtectControlGroups=true
RestrictRealtime=true
# end of automatic additions

# even more hardening options
CapabilityBoundingSet=CAP_NET_BIND_SERVICE
AmbientCapabilities=CAP_NET_BIND_SERVICE
RestrictAddressFamilies=AF_INET AF_INET6 AF_UNIX AF_NETLINK
PrivateTmp=yes
NoNewPrivileges=yes
MountFlags=private
LockPersonality=yes
KeyringMode=private
RestrictNamespaces=yes
RestrictSUIDSGID=yes
DevicePolicy=closed
MemoryDenyWriteExecute=yes
SystemCallArchitectures=native
SystemCallFilter=~ @clock @cpu-emulation @debug @keyring @module @mount @raw-io @reboot @swap @obsolete @resources @pkey

[Install]
WantedBy=multi-user.target

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File nsd.service of Package nsd

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