centos7关闭防火墙

• 查看防火墙状态

systemctl status firewalld / firewall-cmd --state

• 暂时关闭防火墙

systemctl stop firewalld

• 永久关闭防火墙(禁用开机自启) ，需要重启网卡后才生效

systemctl disable firewalld

• 重启网卡

systemctl restart network