centOS7 防火墙

查看已经开放的端口：

firewall-cmd –list-ports

开启端口:

firewall-cmd –zone=public –add-port=8080/tcp –permanent

关闭端口：

firewall-cmd –permanent –zone=public –remove-port=8080/tcp

开启防火墙：

systemctl start firewalld

重启防火墙:

firewall-cmd –reload #重启
firewall systemctl stop firewalld.service #停止
firewall systemctl disable firewalld.service #禁止firewall开机启动