[165856] in North American Network Operators' Group

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Re: d6991.com traffic

daemon@ATHENA.MIT.EDU (Dobbins, Roland)
Mon Sep 23 13:25:16 2013

From: "Dobbins, Roland" <rdobbins@arbor.net>
To: NANOG list <nanog@nanog.org>
Date: Mon, 23 Sep 2013 17:25:02 +0000
In-Reply-To: <52407643.9080306@gmail.com>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org


On Sep 24, 2013, at 12:11 AM, Chris Hunt wrote:

> That is a problem, but I'm seeing a lot of queries from residential users=
 for what seems to me an obscure name hostied in Asia.  I'm
> guessing some kind of bot traffic...

They may be open recursors being leveraged for DNS reflection/amplification=
 DDoS (many CPE devices are broken this way).  Check some of the CPEs to se=
e if they're open recursors:

<http://openresolverproject.org/>

-----------------------------------------------------------------------
Roland Dobbins <rdobbins@arbor.net> // <http://www.arbornetworks.com>

	  Luck is the residue of opportunity and design.

		       -- John Milton



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