Configuring DNS on Debian/Ubuntu

Change the domain name server.

To specify the new domain name server, you will need to edit the file resolv.conf. Open the file with any text editor:

nano /etc/resolv.conf

and replace the ip-address with a new one in the line nameserver:

options rotate
options timeout:2
options attempts:1
nameserver 91.228.153.88
nameserver 195.26.237.237
nameserver 31.172.68.71