Centos Boot iptables Firewall policy

Operating Environment Centos6.7

[Email protected] ~]# vim ipt.sh

#!/bin/bash

ipt= "/sbin/iptables"

$ipt-F

$ipt-P INPUT ACCEPT

# $ipt-T nat-p INPUT DROP

$ipt-P OUTPUT ACCEPT

$ipt-A input-p tcp-s 10.0.0.1--dport 20-j ACCEPT

$ipt-A input-p tcp-s 255.10.10.0/26--dport 20-j ACCEPT

$ipt-I input-p tcp-s 20.0.0.1--sport 10-d 192.16.1.235--dport 20-j DROP

[[email protected] ~]# vim/etc/rc.d/rc.local--Modify the CentOS boot entry

Add/bin/sh/root/ipt.sh---Guaranteed to start ipt.sh Firewall policy every time you restart

This article is from the "Ming blog" blog, please be sure to keep this source http://4408149.blog.51cto.com/4398149/1729325

Centos Boot iptables Firewall policy