Second Name Server with one IP

[MarkDark]

Hello guys,

I have read quite a few topics here, however, I could not find an answer for my question:

I would like to create two name servers (ns1.domain.com, ns2.domain.com) in order to properly park domains, but my provider (Windows Azure) issues only one IP per Virtual Machine. Pointing both of them into one IP does not work as some domain sellers do not allow to park the domain (and sadly one of them is where I keep all my domains).

Hence, is there a service that could help me create two name servers for one IP (would prefer simple and free)?
Or I could create another VM, but how should I set it?

I am a beginner and will use the server for about 12 - 14 of my websites.

Thank you!

Hello
There is a good free service
http://freedns.afraid.org/
There is a secondary DNS service
I use!