systemctl stop firewalld.service #临时关闭防火墙
systemctl disable firewalld.service #永久关闭防火墙
systemctl status firewalld.service #查看当前状态
systemctl stop firewalld.service #临时关闭防火墙
systemctl disable firewalld.service #永久关闭防火墙
systemctl status firewalld.service #查看当前状态