linux开关端口号

1，安装firewalld

2，开启firewalld
systemctl start firewalld

3，开启端口
firewall-cmd --permanent --zone=public --add-port=8080/tcp

4，关闭端口
firewall-cmd --permanent --zone=public --remove-port=8080/tcp

5，保存设置
systemctl reload firewalld                          

6，查看状态
systemctl status firewalld