A name server is similar to a telephone switchboard. It holds the information that tells the Internet where to find your web site and where to deliver your email. Name servers look something like this: yns1.yahoo.com.

Yahoo!'s name servers must be listed as the primary and secondary name servers in order for Yahoo! to host your domain services properly. If you replace Yahoo!'s default name servers, Yahoo! will no longer be able to provide any services associated with your domain.

To add new name servers or replace Yahoo!'s name servers with your own, head to your Domain Control Panel, click the "Advanced DNS settings" link, then choose the "Change Name Servers" button. On the following page, you'll be able to modify your name servers.

Tip: Name server host names you submit for use with your service must be registered. If your name server host names are not registered, you may encounter errors when trying to modify your name servers.

Please note: Any changes that you make to your advanced DNS settings can interrupt your service. If you are not an advanced user, we strongly recommend that you not change these settings.