/etc/init.d/iptables

iptables

#! /bin/bash
### BEGIN INIT INFO
# Provides:          iptables
# Required-Start:    mountkernfs $local_fs
# Required-Stop:     mountkernfs $local_fs
# X-Start-Before:    networking
# X-Stop-After:      networking
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Iptables
# Description:       Debian init script for iptables
### END INIT INFO

. /lib/lsb/init-functions

function do_start {
    if [ -e "/etc/iptables.rules" ]; then
        log_daemon_msg "Starting iptables service" "iptables"
        /sbin/iptables-restore < /etc/iptables.rules
        log_end_msg $?
    else
        log_action_msg "No rules saved for iptables"
    fi
}

function do_stop {
    log_daemon_msg "Stopping iptables service" "iptables"
    /sbin/iptables -F
    /sbin/iptables -X
    /sbin/iptables -t nat -F
    /sbin/iptables -t nat -X
    /sbin/iptables -t mangle -F
    /sbin/iptables -t mangle -X
    /sbin/iptables -P INPUT ACCEPT
    /sbin/iptables -P FORWARD ACCEPT
    /sbin/iptables -P OUTPUT ACCEPT
    log_end_msg $?
}

function do_save {
    log_daemon_msg "Saving iptables rules" "iptables"
    /sbin/iptables-save > /etc/iptables.rules
    log_end_msg $?
}

case "$1" in
    start)
        do_start
    ;;
    stop)
        do_stop
    ;;
    save)
        do_save
    ;;
    restart)
        do_stop
        do_start
    ;;
    *)
        echo "Usage: /etc/init.d/iptables {start|stop|restart|save}"
        exit 1
    ;;
esac

exit 0