HOW TO ADD DNS IN UBUNTU / DEBIAN LINUX

How to set up DNS in Ubuntu

 You can add hostname and IP addresses to the file /etc/hosts for static lookups.

 You can add your DNS Server Ip address  for name lookups  to /etc/resolv.conf.

For example If you want to add  the DNS server at IP address 8.8.8.8

    sudo vi /etc/resolv.conf


If you have GUI use the following command

    gksudo gedit /etc/resolv.conf

enter the following details

    search test.com
    nameserver 8.8.8.8