vim /etc/sysconfig/network-scripts/ifcfg-ens33
重启网卡
systemctl restart network
关闭防火墙并设置开机不启动
查看防火墙状态：systemctl status firewalld.service
关闭：systemctl stop firewalld
开启：systemctl start firewalld
开机自动关闭：systemctl disable firewalld
开机自动启动：systemctl enable firewalld
查看开机是否启动：chkconfig --list|grep network(RHLE6)
