nanog mailing list archives

Re: DDos syn attack


From: "Christopher L. Morrow" <chris () UU NET>
Date: Mon, 30 Dec 2002 19:42:07 +0000 (GMT)



On Mon, 30 Dec 2002, Chris Wedgwood wrote:


On Mon, Dec 30, 2002 at 08:09:17AM -0800, Randy Bush wrote:

actually, a bunch of research now shows that low ttls on A RRs (that
are not the A RRs of NS RRs) has little effect.

maybe this could help find the attacking nwtwork?  assuming people are
using local DNS servers?

under attack you could sporadically 'lie' about the result... and log
to whom you lied to... all the time looking for changes in the DDoS
target

a fair amount work perhaps...

wow, break bind in a new and horrid way to accomplish this task :) Nice...
perhaps mr. vixie will add this functionality for us?


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