[129379] in North American Network Operators' Group

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Re: ISP port blocking practice

daemon@ATHENA.MIT.EDU (Dobbins, Roland)
Fri Sep 3 16:52:20 2010

From: "Dobbins, Roland" <rdobbins@arbor.net>
To: NANOG list <nanog@nanog.org>
Date: Fri, 3 Sep 2010 20:52:08 +0000
In-Reply-To: <9A93BDB8-6513-49A2-9ADF-35959E1836B3@arbor.net>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org


On Sep 4, 2010, at 3:11 AM, Dobbins, Roland wrote:

> I've certainly never run across it, nor do I know anyone else who has don=
e so. =20


I stand corrected - it seems I do in fact know someone who's observed this =
technique used to send spam, albeit in the past when POTS dial-up pools wer=
e the de facto access method for the masses and before the technical and co=
mmercial maturity of the botnet business model.

I still maintain that even if it's being used today, it's rare, and essenti=
ally a corner-case.  This isn't meant to detract from the novelty and creat=
ivity of the paper in question, but rather to posit the view that it isn't =
necessarily something for operators to get too worked up about, in the sche=
me of things.

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

 	       Sell your computer and buy a guitar.






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