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linux添加端口

Posted on 2017-03-20 15:54 朱杰兵 阅读(29) 评论(0)  编辑  收藏
Linux下在防火墙中开启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80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:
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


然后重启一下防火墙

service iptables restart

搞定!



centos7不太一样


 

那怎么开启一个端口呢
添加
firewall-cmd --zone=public --add-port=8080/tcp --permanent    (--permanent永久生效,没有此参数重启后失效)
重新载入
firewall-cmd --reload
查看
firewall-cmd --query-port=8080/tcp
删除
firewall-cmd --zone= public --remove-port=80/tcp --permanent

 


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