[Unit] Description=IPv4 Firewall with iptables After=network.target [Service] SyslogIdentifier="ipt-gateway" Type=oneshot RemainAfterExit=yes ExecStart=/usr/local/sbin/ipt-firewall-gateway start ExecStop=/usr/local/sbin/ipt-firewall-gateway stop User=root [Install] WantedBy=multi-user.target