systemctl stop firewalld.service #停止firewall
systemctl disable firewalld.service #禁止firewall开机启动
systemctl start firewalld #启动 firewall
firewall-cmd --state #查看状态
systemctl stop firewalld.service #停止firewall
systemctl disable firewalld.service #禁止firewall开机启动
systemctl start firewalld #启动 firewall
firewall-cmd --state #查看状态