How do I set up personal nameservers in WHM ?
You will need an IP address for each nameserver.
Under Basic cPanel/WHM Setup, scroll down to Primary Nameserver.
Now add your nameservers in the fields available. Click on Assign IP Address next to each nameserver to assign it an IP. Then add an A entry so they will resolve through DNS.
Finally, make sure that you scroll down and click on Nameserver Setup under Service Configuration, and enable the nameserver.