How do I make my private name servers the default for all accounts I create in WHM?

So, you want your private name servers to be used for all future accounts you create.

Note: This will only set the name server entries in the DNS zones. Your customer must still update their name servers with their registrar. Read more in the "DNS glue" related article.

Reseller:

1. In WHM, click "Basic cPanel/WHM Setup".
2. Replace the information after "Nameserver 1:" with your primary private name server (Example: ns1.domain.com).
3. Replace the information after "Nameserver 2:" with your secondary private name server (Example: ns2.domain.com).
4. Finally, click Save Changes.

Dedicated:

1. In WHM, click "Reseller Center".
2. In the third area called Reseller Modifications, select the user/domain and click "Edit reseller privileges & nameservers".
3. Now scroll all the way to the very bottom.
4. Replace the information after "Nameserver 1:" with your primary private name server (Example: ns1.domain.com).
5. Replace the information after "Nameserver 2:" with your secondary private name server (Example: ns2.domain.com).
6. Finally, click Save All Settings.