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Date: Fri, 17 Mar 2006 16:37:10 -0800 From: Michael Sierchio <kudzu@...ebras.com> To: bugtraq@...urityfocus.com Subject: Re: recursive DNS servers DDoS as a growing DDoS problem Robert Story wrote: > 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. Are you talking about rogue authoritative servers? Otherwise, responses will be limited to 512 bytes, possibly with the truncation bit set.
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