Type following command to edit DNS (NS1/NS2) server:
Code:
sudo vi /etc/resolv.conf
Add/modify your ISP nameserver as follows:
Code:
search isp.com
nameserver 202.54.1.110
nameserver 202.54.1.112
nameserver 202.54.1.115
Save the file. And test with nslookup or digg command:
Code:
dig theos.in
nslookup cyberciti.biz
dig isp.com
If you are using Gnome desktop type command:
or