[dns-operations] A Case Against DNSSEC (A Matasano Miniseries)

[Matt Larson]

On Wed, 04 Apr 2007, Paul Vixie wrote:
> > Am I missing something here?  Do 75% of the world's Internet users (to 
> > take a number from another of Rodney's message) really use less than 30 
> > recursive DNS servers?
> 
> that sounds about right.

Has somebody got data showing this?  My anecdotal experience indicates
otherwise.  It's been about three years, but one time I counted unique
source IP addresses received by a.gtld-servers.net--just one out of 13
.com/.net servers--and saw 1.9 million unique addresses in a 24-hour
window.  Another data point is our recent J root traffic analysis,
which looked at a 26-hour window in late October 2006 and showed
859,784 unique source IP addresses across 335,259,322 total queries.
(The presentation is available at
http://public.oarci.net/files/workshop-2006/Larson-Anycast.pdf.)

But I'm sufficiently intrigued to put my data where my mouth is--I'll
do some additional analysis about distribution of queries across
addresses and get back to the list.

Matt