linux登录root账号后 **1.配置下网卡：** ~~~ chkconfig NetworkManager off chkconfig  network on service NetworkManager stop service network start service network restart ~~~ **2.修改dns** 输入 `vi /etc/resolv.conf` 点击i进入insert模式，输入 ~~~ nameserver 208.67.222.222 nameserver 208.67.220.220 ~~~ 点击ecs键，输入:wq返回