systemctl stop firewalld.service 关闭防火墙
systemctl start firewalld.service 开启防火墙
firewall-cmd --state 查看防火墙运行状态
systemctl disable firewalld.service 禁止开机启动
systemctl stop firewalld.service 关闭防火墙
systemctl start firewalld.service 开启防火墙
firewall-cmd --state 查看防火墙运行状态
systemctl disable firewalld.service 禁止开机启动