当前防火墙状态
systemctl status firewalld
开启防火墙
systemctl start firewalld
停止防火墙
systemctl stop firewalld
开机启动防火墙
systemctl enable firewalld
禁止防火墙开机启动
systemctl disable firewalld
查看已开放的端口
firewall-cmd --list-ports
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
重启防火墙
firewall-cmd --reload
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
转载 https://www.cnblogs.com/myJuly/p/11810771.html