[62076] in North American Network Operators' Group

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Re: What *are* they smoking?

daemon@ATHENA.MIT.EDU (Tomas Lund)
Mon Sep 15 21:15:10 2003

Date: Tue, 16 Sep 2003 03:13:49 +0200 (CEST)
From: Tomas Lund <tlund@swip.net>
To: Chris Adams <cmadams@hiwaay.net>
Cc: nanog@merit.edu
In-Reply-To: <20030916005104.GF671416@hiwaay.net>
Errors-To: owner-nanog-outgoing@merit.edu


On Mon, 15 Sep 2003, Chris Adams wrote:

> It appears that the most reliable way to detect a wildcard response for
> 'somedomain.tld' is to query for '*.tld'; if the results match, then
> 'somedomain.tld' doesn't really exist.

Just make up a number of fake domains and resolve them. If they return the
same answer, thats the answer to change back into NXDOMAIN.

//tlund

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