CentOS 7.0默认使用的是firewall作为防火墙 1、关闭firewall: systemctl stop firewalld.service#停止firewall systemctl disable firewalld.service #禁止firewall开机启动 systemctl status firewalld.service #查看状态
systemctl stop firewalld.service
systemctl disable firewalld.service
systemctl status firewalld.service