tor/contrib/dist/tor.service.in

[Unit]
Description = Anonymizing overlay network for TCP
After = syslog.target network.target nss-lookup.target

[Service]
Type = simple
ExecStartPre = @BINDIR@/tor -f @CONFDIR@/torrc --verify-config
# A torrc that has "RunAsDaemon 1" won't work with the "simple" service type;
# let's explicitly override it.
ExecStart = @BINDIR@/tor -f @CONFDIR@/torrc --RunAsDaemon 0
ExecReload = /bin/kill -HUP ${MAINPID}
KillSignal = SIGINT
TimeoutSec = 30
Restart = on-failure
LimitNOFILE = 32768

# Hardening
PrivateTmp = yes
DeviceAllow = /dev/null rw
DeviceAllow = /dev/urandom r
InaccessibleDirectories = /home

[Install]
WantedBy = multi-user.target