Multiple PTR Records from One IP Address

Jeff Lightner jlightner at water.com
Wed Feb 27 13:10:28 UTC 2008


Well now I feel stupid.  I was reading it as "pointer" and thinking
"CNAME".

You're right no PTR records for forward lookup.


-----Original Message-----
From: bind-users-bounce at isc.org [mailto:bind-users-bounce at isc.org] On
Behalf Of Barry Margolin
Sent: Wednesday, February 27, 2008 1:25 AM
To: comp-protocols-dns-bind at isc.org
Subject: Re: Multiple PTR Records from One IP Address

In article <fq1t03$slk$1 at sf1.isc.org>,
 "Jeff Lightner" <jlightner at water.com> wrote:

> You're assumption being that all PTR records are for reverse lookups?
> 
> Our company has an overarching domain that is fairly elemental and we
> had multiple PTR records for forward lookups to make other domains
> aliases of this domain.  Of course the reverse was only tied to the
> primary domain but then again we weren't using the other domains for
> anything other than web sites.

This doesn't make any sense.  How do you use PTR records for forward 
lookups?  Can you give examples of what you were doing?

-- 
Barry Margolin, barmar at alum.mit.edu
Arlington, MA
*** PLEASE post questions in newsgroups, not directly to me ***
*** PLEASE don't copy me on replies, I'll read them in the group ***
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