Hello, this is my first time at ServerFault, I'm a stackoverflow user.

I'm faceing the next problem and may be its me, but I can't find proper guides to set up a domain and nameservers for a dedicated box.

I have a domain, at whois.com, and a Dedicated server at Reliable Hosting Services, the server has 5 IPs, I know that I need 2 of them for the nameservers.

Right now, my domain at whois.com is using nsX.whois.com nameservers and it has 2 child nameservers: ns1.mydomain.com & ns2.mydomain.com pointing to those 2 IPs from my Server.

Whats next? I still cannot set that domain as my main server domain since it says:

To map an IP to a domain, the domain must ping to the same IP, otherwise, the domain will stop working. The domain you are trying to map this IP to, doesn't resolve back to the IP, and so it cannot be set as the default domain for the IP.

Well and I'm stuck on those steps, whats next to have my nameservers working and my main domain assigned to my server?

Thank you very much and happy new year!!