Editing The Name Servers For Your Domain Name
To edit your name servers follow these steps.
Step 1. Click the dropdown at the top righthand corner of your account, then click Domains.
Step 2. Select the domain you wish to edit, then change the Domain Locking setting to "Unlocked" and click Update.
Step 3. Under the DNS field, enter your primary name server in the first box and secondary name server in the second box, then click Update.
Note: Any change you make to your DNS can take some time to resolve. Usually you will see these changes within a few hours, but it can take up to a full 48 hours to fully propagate.