Manual DNS
To change DNS servers just takes a quick edit in the right place.
resolv.conf
On Linux the DNS servers the system uses for name resolution are defined in the file:
/etc/resolv.conf
It's spelled just like that, with no "e" at the end of "resolv".
In that file we'll want to have at least one "nameserver" line (two is better, so we have a fallback). Each line defines a DNS server.
The name servers will be prioritized in the order the system finds them in the file. Use the IP addresses of the name servers when entering them, since the system won't know what to do with domain names until after it knows how to get to the DNS servers.
Open resolv.conf with an editor like nano to make the necessary changes (if it doesn't exist already this will create the file for us):
sudo nano /etc/resolv.conf
BA.net/Adblock
nameserver 104.131.230.202 nameserver 104.236.166.10 nameserver 104.236.64.166
Summary
It's that simple - change or add those name servers and once the settings are saved the system will use them right away. Make sure the changes take with a quick ping to test it and you'll be done.
