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bugtraq logo Bugtraq mailing list archives

Re: recursive DNS servers DDoS as a growing DDoS problem
From: Robert Story <rstory-l () 2006 revelstone com>
Date: Tue, 14 Mar 2006 06:52:37 -0500
On Tue, 7 Mar 2006 19:26:19 +0200 Ventsislav wrote:
VG> Are you sure about that amplification process??

Yes.

VG> In the scenario you describe, I cannot see any actual amplification...

The amplification isn't in the number of hosts responding, but in packet size.
A very small DNS request packet results in a huge response packet.

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