查看防火墙状态
firewall-cmd --state
停止firewall
systemctl stop firewalld.service
启动firewall
systemctl start firewalld.service
禁止firewall开机启动
systemctl disable firewalld.service
开启firewall开机启动
systemctl enable firewalld.service
firewall-cmd --state
systemctl stop firewalld.service
systemctl start firewalld.service
systemctl disable firewalld.service
systemctl enable firewalld.service