[40152] in North American Network Operators' Group
RE: trapdoor.merit.edu and other impatient Postfix mailers
daemon@ATHENA.MIT.EDU (Derek Balling)
Thu Aug 2 17:25:13 2001
Mime-Version: 1.0
Message-Id: <p05101001b78f752a1a07@[216.145.52.64]>
In-Reply-To: <GCEEKJFMELAOEDFALPMNOEFACEAA.mark@amplex.net>
Date: Thu, 2 Aug 2001 14:24:30 -0700
To: <nanog@merit.edu>
From: Derek Balling <dredd@megacity.org>
Content-Type: text/plain; charset="us-ascii" ; format="flowed"
Errors-To: owner-nanog-outgoing@merit.edu
At 5:17 PM -0400 8/2/01, Mark Radabaugh - Amplex wrote:
>I think MAPS managed to DOS themselves. Since they are refusing queries
>BIND can't cache the response and so it just keeps trying with every new
>e-mail. The traffic hitting MAPS servers has to be impressive.
This seems very similar to what happened to a couple of the ORBS
mirrors when ORBS shut down.
Eventually, one of them decided to just start returning "127.0.0.2"
for every lookup (or some such), which caused lots of people to
reject-all-mail until they fixed their configs.
Not that I think MAPS would do such a thing, but it may be one of the
few ways they can fix the large installed base pointing at them and
not ceasing as they're supposed to.
D
--
+---------------------+-----------------------------------------+
| dredd@megacity.org | "Conan! What is best in life?" |
| Derek J. Balling | "To crush your enemies, see them |
| | driven before you, and to hear the |
| | lamentation of their women!" |
+---------------------+-----------------------------------------+
