Updating your nameserver IP addresses for a domain is easy:

1. Login to our secure client area.
2. Click on Domains in the secondary menu, then My Domains
3. Click the Manage Domain button for the domain that the nameservers are registered under.
4. Click the Management Tools tab then Register Nameservers
5. Under the section titled Modify a NameServer IP enter the name server name, the current IP address assigned to it, then the new IP address
6. Click the save changes button.
7. Allow up to 48 hours for the change to be propagated throughout the internet - root servers usually update within 10 minutes.
8. Repeat for second and other name servers.

Now you must update the A (host) records for those name servers in the DNS zone for that domain.

1. Login to your control panel (WHM, cpanel, websitepanel)
2. Edit the DNS zone or host records
3. Modify the A records for the DNS servers to match the IP addresses in the previous section.
4. Allow up to 48 hours for the change to be propagated throughout the internet