Help setting up DNS please!

[joemiller]

Hi, I'm struggling to get my head round how to set up my DNS records for my cloud server, and hope someone can guide me.

I have a server hosted on the cloud at Rackspace. I'm wanting to use the server (I only have one) to host a number of small websites, all controlled through the ISPConfig control panel.

The server is running CentOS 6.3 and I've been following the tutorial here. I want my server to act as the DNS server for all the sites I host.

My problem is knowing what I should put as in the nameserver on my domain registrar; should it be the Rackspace nameserver, or my own? If it's my own, then how do I set up a public dns. I believe that I've currently set up a private one, but I'm not sure!

I hope this makes sense, and someone can advise me!

Thanks in advance.