[Unit] Description=Load Iptables Rules ConditionFileIsExecutable=/etc/systemd/scripts/iptables After=network.target [Service] Type=forking ExecStart=/etc/systemd/scripts/iptables ExecStop=/etc/systemd/scripts/iptables.stop TimeoutSec=0 RemainAfterExit=yes [Install] WantedBy=multi-user.target