DNS DoS ???

Sun Jul 31 01:09:18 UTC 2011

More good stuff here: http://www.team-cymru.org/Services/Resolvers/

Frank

-----Original Message-----
From: Dobbins, Roland [mailto:rdobbins at arbor.net] 
Sent: Friday, July 29, 2011 5:40 PM
To: NANOG list
Subject: Re: DNS DoS ???

On Jul 30, 2011, at 1:51 AM, Elliot Finley wrote:

> my DNS servers were getting slow so I blocked recursive queries for all
but my own network.

This should be the standard practice.  By operating an open recursor, you
lend your DNS server to abuse as a contributor to DNS
reflection/amplification attacks.

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

		The basis of optimism is sheer terror.

			  -- Oscar Wilde