[62876] in North American Network Operators' Group
Re: Detecting a non-existent domain
daemon@ATHENA.MIT.EDU (Daniel Roesen)
Tue Sep 23 17:59:30 2003
Date: Tue, 23 Sep 2003 23:47:44 +0200
From: Daniel Roesen <dr@cluenet.de>
To: nanog@merit.edu
Mail-Followup-To: nanog@merit.edu
In-Reply-To: <Pine.LNX.4.33.0309231620040.1438-100000@morannon.the-infinite.org>; from sauron@the-infinite.org on Tue, Sep 23, 2003 at 04:24:32PM -0500
Errors-To: owner-nanog-outgoing@merit.edu
On Tue, Sep 23, 2003 at 04:24:32PM -0500, Dominic J. Eidson wrote:
> Look for a SOA record for the domain - this should be the proper way to
> check for the existance of a domain,
No, because there doesn't _have_ to be a SOA RR for a 2nd level
domain. For example, in the .de TLD, there are (many) domains
which have their RRs (A, MX) in the de. zone file, NOT being
delegated to another NS RRset.
Example: fsck.de
Regards,
Daniel
