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2024年5月24日发(作者:)

Linux配置防火墙 开启80端口、3306端口的方法

vi /etc/sysconfig/iptables

-A INPUT -m state –state NEW -m tcp -p tcp –dport 80 -j ACCEPT(允许8

0端口通过防火墙)

-A INPUT -m state –state NEW -m tcp -p tcp –dport 3306 -j ACCEPT(允

许3306端口通过防火墙)

特别提示:很多网友把这两条规则添加到防火墙配置的最后一行,导致防火墙启动失

败,正确的应该是添加到默认的22端口这条规则的下面

添加好之后防火墙规则如下所示:

复制代码

代码如下:

# Firewall configuration written by system-config-firewall

# Manual customization of this file is not recommended.

*filter

:INPUT ACCEPT [0:0]

:FORWARD ACCEPT [0:0]

:OUTPUT ACCEPT [0:0]

-A INPUT -m state –state ESTABLISHED,RELATED -j ACCEPT

-A INPUT -p icmp -j ACCEPT

-A INPUT -i lo -j ACCEPT

-A INPUT -m state –state NEW -m tcp -p tcp –dport 22 -j ACCEPT

-A INPUT -m state –state NEW -m tcp -p tcp –dport 80 -j ACCEPT

-A INPUT -m state –state NEW -m tcp -p tcp –dport 3306 -j ACCEPT

-A INPUT -j REJECT –reject-with icmp-host-prohibited

-A FORWARD -j REJECT –reject-with icmp-host-prohibited

COMMIT

/etc/init.d/iptables restart

#最后重启防火墙使配置生效

本文标签: 防火墙端口配置