1. 查看已开放的端口
firewall-cmd --list-ports
2. 开放端口(开放后需要要重启防火墙才生效)
firewall-cmd --zone=public --add-port=3338/tcp --permanent
3. 关闭端口(关闭后需要要重启防火墙才生效)
firewall-cmd --zone=public --remove-port=3338/tcp --permanent
4. 重启防火墙
firewall-cmd --reload
5. 开机启动防火墙
systemctl enable firewalld
6. 开启防火墙
systemctl start firewalld
7. 禁止防火墙开机启动
systemctl disable firewalld
8.停止防火墙
systemctl stop firewalld
网友评论