Hi
I am using whoiscart, and I am trying to find the whois server's for .mn and .bz domain extensions.
I have tried whois.nic.mn but I can't get it to work.
I have tried mhpwhois1.verisign-grs.net for .bz and I can't get it to work either.
It might help if I knew what the line parse and recogniser details are for them too.
Thanks

I don't know about .mn but for .bz it's here... http://www.belizenic.bz/about.php

It's a 2 stage process. Firstly you search for the domain, and then if it's regged, they offer you the whois.

The whois server for .bz used to be whois.neteka.net, but this seems to not be working now.
However neteka.net belongs to Afilias so that might be a starting point.
Whois is being phased out for availability checking, most registries are going to telnet type connections and individual protocols only available to official registrars.