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Tracking the DNS amplification attacks (was: isprime DOS in progress)

Subject: Tracking the DNS amplification attacks (was: isprime DOS in progress)
From: chort at smtps.net (Brian Keefer)
Date: Sat, 24 Jan 2009 16:50:24 -0800
In-reply-to: <[email protected]>
References: <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <C035DD0A88EFF241A24578B7B8D5B505013F4538@intranet.mail.hostingshop.com.au> <[email protected]> <[email protected]>

Caveat:  my PERL is _terrible_.

http://www.smtps.net/pub/dns-amp-watch.pl

This assumes you're using BIND.  My logs roll on the hour, so I run it  
from cron at 1 minute before the hour.  Depending on how long it takes  
to process your logs, you might need to tweak.

--
bk
CA cert:  http://www.smtps.net/pub/smtps-dot-net-ca-2.pem

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Follow-Ups:
- Tracking the DNS amplification attacks (was: isprime DOS in progress)
  - From: frnkblk at iname.com (Frank Bulk)
- Tracking the DNS amplification attacks (was: isprime DOS in progress)
  - From: chort at smtps.net (Brian Keefer)
- Tracking the DNS amplification attacks (was: isprime DOS in progress)
  - From: Crist.Clark at globalstar.com (Crist Clark)

References:
- Any ATT DNS admins out there?
  - From: mike.lyon at gmail.com (Mike Lyon)
- isprime DOS in progress
  - From: nanog at email.fries.net (Todd T. Fries)
- isprime DOS in progress
  - From: graeme at graemef.net (Graeme Fowler)
- isprime DOS in progress
  - From: bjorn at mork.no (Bjørn Mork)
- isprime DOS in progress
  - From: pr at isprime.com (Phil Rosenthal)
- isprime DOS in progress
  - From: stevel at dedicatedservers.net.au (Steven Lisson)
- isprime DOS in progress
  - From: luke at sheldrick.co.uk (Luke Sheldrick)
- isprime DOS in progress
  - From: chort at smtps.net (Brian Keefer)

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