Frequently Asked Questions
This is generally very straightforward.
(In order for this to work, you must first have set up NearlyFreeSpeech.NET DNS for your domain name. If that is not already done, start with this FAQ entry and then return here.)
Since each registrar has a slightly different way of editing name servers, you would need to contact them for specific help with using their system.
Once these steps are complete, you may have to wait awhile for the change to take effect. Changes in most top-level domains take less than 24 hours, and the major ones (.com, .net, and .org) often take effect within a few minutes.
If your domain registrar provides DNS service, you can also use that, although it is not recommended. Please see this FAQ entry for more information.