I'm looking for a service to host my secondary nameserver. I've been looking at DynDns because of the great feedback I see on ServerFault & other sites.
But I'm looking at two of their plans: Custom DNS ($30/year) and Secondary DNS ($40/year). All I'm looking for is to have a secondary nameserver which points to the same place my primary one does.
Does Custom DNS do everything I need & work correctly, or do I need the extra $10/year for the Secondary DNS? Or is there another plan/provider that would better fit my purposes?