Hello MSJ,
Thank you for your reply. This is the scenario outlined clearly:
I have a linode with this IP address 23.239.11.132 running Ubuntu 12.04 LTS & ISPconfig - I have n3rve.com registered at namecheap. Under Domain name server setup, I have two entries: NS1.N3RVE.COM & NS2.N3RVE.COM - Under Nameserver Registration: I have NS1.N3RVE.COM & NS2.N3RVE.COM both pointing at 23.239.11.132
With this setup, pinging n3rve.com doesn't respond.
I have another domain <removed> with nameservers set as ns1.n3rve.com & ns2.n3rve.com, the website configured for this domain under ISPconfig responds without issues. pings to <removed> get replies from "n3rve.com (23.239.11.132)", however n3rve.com is a dead end.
I have no idea what is going at this point, or how n3rve.com isn't responding but <removed> is. I hope you can clarify what I've done wrong.


I should note that my current DNS setup at namecheap worked fine when I used Kloxo.
I don't know what's changed.