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

[Service]
Type=notify
NotifyAccess=all
ExecStartPre=/usr/bin/tor --runasdaemon 0 -f /etc/tor/torrc --verify-config
ExecStart=/usr/bin/tor --runasdaemon 0 -f /etc/tor/torrc
ExecReload=/bin/kill -HUP ${MAINPID}
KillSignal=SIGINT
TimeoutSec=30
Restart=on-failure
RestartSec=1
WatchdogSec=1m
LimitNOFILE=32768
LimitMEMLOCK=infinity

# Hardening
PrivateTmp=yes
PrivateDevices=yes
DeviceAllow=/dev/null rw
DeviceAllow=/dev/urandom r
ProtectHome=yes
ProtectSystem=full
NoNewPrivileges=true
MemoryDenyWriteExecute=true
ReadOnlyDirectories=/
ReadWriteDirectories=-/var/lib/tor
ReadWriteDirectories=-/var/log/tor
CapabilityBoundingSet=CAP_SETUID CAP_SETGID CAP_NET_BIND_SERVICE CAP_DAC_READ_SEARCH

[Install]
WantedBy=multi-user.target