systemd/firewall4.service

   1 [Unit]
   2 Description=Firewall for IPv4
   3 After=firewall-init.service
   4 Before=network.target
   5 Requires=firewall-init.service
   6
   7 [Service]
   8 Type=oneshot
   9 RemainAfterExit=yes
  10 ExecStart=/usr/sbin/firewall4 start
  11 ExecStop=/usr/sbin/firewall4 stop
  12
  13 [Install]
  14 WantedBy=multi-user.target