lfirewall/systemd/lfirewall.service

[Unit]
Description=Light Firewall
DefaultDependencies=no
Before=network-pre.target
Wants=network-pre.target local-fs.target
After=local-fs.target

[Service]
Type=oneshot
ExecStart=/sbin/lfirewall start
ExecStop=/sbin/lfirewall dropall
ExecStartPost=/sbin/lfirewall status
StandardError=journal+console
RemainAfterExit=yes

[Install]
WantedBy=multi-user.target