Error msg buggin me

Barry Margolin barmar at bbnplanet.com
Fri Dec 10 15:10:17 UTC 1999


In article <82p3rv$2uk$1 at netnews.upenn.edu>,
Jason Rotunno <rotunnoj at mail.med.upenn.edu> wrote:
>Dec  8 17:07:26 drop named[105]: sysquery: findns error (NXDOMAIN) on 
><host.domain>.<network portion of IP in reverse order>.in-addr.arpa?
>
>I don't want to give the real domain name or IP address so people don't 
>start port scanning me and so on.  I get this message constantly.  Anyone 
>know exactly what this is all about?

This message is because you forgot the "." at the end of your hostname in
the NS record in the reverse domain.  I.e. you wrote:

   IN NS host.domain

Any name that doesn't end in "." gets the domain name appended, so that's
equivalent to:

   IN NS host.domain.<network portion of IP in reverse order>.in-addr.arpa.

Then your server tried to find that nameserver (that's what "findns" does)
and of course it couldn't find a DNS entry for it (that's what NXDOMAIN
stands for -- "No such domain name").

-- 
Barry Margolin, barmar at bbnplanet.com
GTE Internetworking, Powered by BBN, Burlington, MA
*** DON'T SEND TECHNICAL QUESTIONS DIRECTLY TO ME, post them to newsgroups.
Please DON'T copy followups to me -- I'll assume it wasn't posted to the group.


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