C:\> nslookup
> set debug
> set timeout=10
> nasx.tclc.org
> nas0.tclc.org
This produces a fair amount of text, and I need to review it before I can comment.
I did "vimdiff" on these to listings and there is no difference between them that can't be explained by having different names.
c:\> dnscmd ‹server› ∕ZoneInfo ‹zone›
c:\> dnscmd ‹server› ∕ZonePrint ‹zone›
c:\> ipconfig ∕displaydns
Also lots of text that I have not yet reviewed.
This was information on the aggragate zone, and my symptoms were for a single domain name, so I didn't learn anything here.