linux/scripts/init/iptables

#!/bin/sh

### BEGIN INIT INFO
# Provides:       iptables
# Required-Start: $local_fs
# Required-Stop:  $local_fs
# Default-Start:  2 3 4 5
# Default-Stop:   0 1 6
# Description:    IP Tables as service
# X-Author:       Adrian Kousz, 2014
### END INIT INFO

CONFIG=/etc/iptables.rules

start() {
	iptables -F
	iptables-restore -c < "$CONFIG"
	echo 'Service started'
}

stop() {
	iptables -F
	echo 'Service stopped'
}

status() {
	iptables -L -v
}

save() {
	iptables-save -c > "$CONFIG"
	echo 'Settings saved'
}

case "$1" in
	start)
		start
		;;
	stop)
		save
		if [ "$2" != "really" ]; then
			echo 'Append "really" to disable iptables!' >&2
			exit 1
		fi
		stop
		;;
	status)
		status
		;;
	restart)
		stop
		start
		;;
	*)
		echo "Usage: $0 {start|stop|restart|status}"
		exit 1
esac