[Unit]
Description=Uncomplicated firewall
Documentation=man:ufw(8)
Before=network-pre.target
Wants=network-pre.target
Conflicts=iptables.service ip6tables.service nftables.service firewalld.service

[Service]
Type=oneshot
RemainAfterExit=yes
ExecStart=/lib/ufw/ufw-init start quiet
ExecStop=/lib/ufw/ufw-init stop

[Install]
WantedBy=multi-user.target
