ubuntu 14.04 的 dns nameserver

ubuntu 14.04 的DNS设置不能再用 /etc/resolv.conf 来管理

If you are using ubuntu 14.04, you may find you can not setting dns on your /etc/resolv.conf

This is because ubuntu using resolvconf to manage the dns setting, every times system boot, resolvconf will regenerate resolv.conf file.

But there always have way to do this.

vim /etc/resolvconf/resolv.conf.d/head  

在最新的ubuntu 14.04中，/etc/resolv.conf 在系统重启之后，会被重新生成，这样你原来配置的DNS就消失了，但是，你可以设置