ubuntu iptables配置实例

#!/bin/bash

case "$1" in

start)
        echo -n "Staring to write your Iptbales:..."

        /sbin/iptables -F
        /sbin/iptables -X
        /sbin/iptables -Z
        /sbin/iptables -P INPUT DROP
        /sbin/iptables -A INPUT -i lo -j ACCEPT
        /sbin/iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
        /sbin/iptables -A INPUT -s 10.10.10.0/25 -j ACCEPT
        /sbin/iptables -A INPUT -p icmp -m icmp --icmp-type 8 -j DROP
        /sbin/iptables -A INPUT -p tcp -m tcp --dport 22 -j ACCEPT
        /sbin/iptables -A INPUT -p tcp -m tcp --dport 80 -j ACCEPT
        /sbin/iptables -A INPUT -p tcp -m tcp --dport 873 -j ACCEPT
        echo "OK"
;;

stop)
        echo -n "Stop iptables...."

        /sbin/iptables -P INPUT ACCEPT
        /sbin/iptables -F
        /sbin/iptables -X
        /sbin/iptables -Z
        echo "OK"
;;

*)
        echo "Usage: $0  {start|stop}"
;;

esac