Linux防火墙设置

sudo firewall-cmd --add-port=3389/tcp --permanent

sudo firewall-cmd --reload

sudo firewall-cmd --list-all

查看端口占用情况

ss -tulpn

临时关闭防火墙

sudo systemctl stop firewalld

永久关闭防火墙

sudo systemctl disable --now firewalld

disable：取消开机启动

--now：同时立即停止服务

验证防火墙状态

sudo systemctl status firewalld