Linux配置防火墙 开启80端口 

编辑配置文件/etc/sysconfig/iptables

[root@weixinht ~]# vim /etc/sysconfig/iptables     1 # Firewall configuration written by system-config-firewall      2 # Manual customization of this file is not recommended. 3 *filter 4 :INPUT ACCEPT [0:0] 5 :FORWARD ACCEPT [0:0] 6 :OUTPUT ACCEPT [0:0] 7 -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT 8 -A INPUT -p icmp -j ACCEPT 9 -A INPUT -i lo -j ACCEPT 10 -A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT 11 12 -A INPUT -m state --state NEW -m tcp -p tcp --dport 80 -j ACCEPT 13 14 -A INPUT -j REJECT --reject-with icmp-host-prohibited 15 -A INPUT -j REJECT --reject-with icmp-host-prohibited 16 -A FORWARD -j REJECT --reject-with icmp-host-prohibited 17 COMMIT

修改的部分： 

在第10行22端口规则的下面增加 80端口规则 

编辑时直接y复制一行再p粘贴， 22改为80

/etc/init.d/iptables restart

重启防火墙使配置生效