1[Unit]
2Description=Save iptable rules
3DefaultDependencies=no
4After=shutdown.target
5
6[Service]
7Type=oneshot
8RemainAfterExit=true
9ExecStart=/bin/sh -c "iptables-save > /etc/iptables/iptables.rules"
10
11[Install]
12WantedBy=shutdown.target
13