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[Unit]
Description=Hardware RNG Entropy Gatherer Daemon
DefaultDependencies=no
After=systemd-udev-settle.service
Before=sysinit.target shutdown.target
Wants=systemd-udev-settle.service
Conflicts=shutdown.target

[Service]
EnvironmentFile=-@SYSCONFDIR@/default/rng-tools
ExecStart=@SBINDIR@/rngd -f $EXTRA_ARGS
CapabilityBoundingSet=CAP_SYS_ADMIN
IPAddressDeny=any
LockPersonality=yes
MemoryDenyWriteExecute=yes
NoNewPrivileges=yes
PrivateTmp=yes
ProtectControlGroups=yes
ProtectHome=yes
ProtectHostname=yes
ProtectKernelModules=yes
ProtectKernelLogs=yes
ProtectSystem=strict
RestrictAddressFamilies=AF_UNIX
RestrictNamespaces=yes
RestrictRealtime=yes
RestrictSUIDSGID=yes
SystemCallArchitectures=native
SystemCallErrorNumber=EPERM
SystemCallFilter=@system-service

[Install]
WantedBy=sysinit.target