CentOS7 防火墙操做

1, 查看防火墙状态:tcp

firewall-cmd --staterest

2, 开启防火墙:cmd

systemctl start firewalld.serviceservice

3,设置开机自启:防火墙

systemctl enable firewalld.servicetop

4, 重启防火墙:端口

systemctl restart firewalld.servicevi

5, 查看防火墙设置开机自启是否成功:ab

systemctl is-enabled firewalld.service;echo $?tar

6,关闭防火墙:

systemctl stop firewalld.service

7,,开端口命令:

firewall-cmd --zone=public --add-port=80/tcp --permanent

8,查看开启端口:

netstat -ntlp 或:firewall-cmd --list-ports

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