centos 打开80端口防火墙

或者使用vi打开这个文件修改手动添加。

[root@centos httpd]# vi /etc/sysconfig/iptables

# Generated by iptables-save v1.4.7 on Tue Feb 14 07:32:18 2012
*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [7:640]
-A INPUT -p tcp -m tcp --dport 10000 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 80 -j ACCEPT
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
-A INPUT -p icmp -j ACCEPT
-A INPUT -i lo -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT
-A INPUT -j REJECT --reject-with icmp-host-prohibited
-A FORWARD -j REJECT --reject-with icmp-host-prohibited
COMMIT
# Completed on Tue Feb 14 07:32:18 2012

重新启动服务

[root@centos httpd]# service iptables restart