1.查看防火墙状态

systemctl status firewalld

2.打开防火墙

systemctl start firewalld

3.关闭防火墙

systemctl stop firewalld

4.重启防火墙

systemctl reload firewalld

5.开机自启动防火墙

systemctl enable firewalld

6.禁止开机启动防火墙

systemctl disable firewalld

7.查看已打开的端口

firewall-cmd --list-ports

netstat -ntpl

netstat -nupl

8.打开端口

firewall-cmd --permanent --zone=public --add-port=8088/tcp 

9.关闭端口

firewall-cmd --permanent --zone=public --remove-port=8088/tcp

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