Re: [ga] DNS Root-Level Pollution

["Joe Baptista" <baptista@xxxxxxxxxxxxxx>]

And who first predicted this would happen ???? hmmm ????

http://www.theregister.co.uk/2003/02/05/dud_queries_swamp_us_internet/

Let us remember that a good portion of that 99% of dud queries to the us
root are the net result of the fact ICANN is no longer an exclusive root.
Never was.  Now it competes with the chinese, the arabs, one or two
scandinavian countries etc etc etc.

Just wait till you the see the mess icann makes of the root system with this
TLD action.  Should be interesting.  Makes the mess I witnessed in europe
look like childs play in comparison.

cheers
joe

On Fri, Jun 13, 2008 at 6:14 PM, Danny Younger <dannyyounger@xxxxxxxxx>
wrote:

>
> http://www.caida.org/research/dns/roottraffic/comparison06_07.xml
>
> Interesting CAIDA study, especially regarding some of the conclusions cited
> below:
>
> "The proportion of invalid traffic, i.e., DNS pollution, hitting the roots
> is still high, over 99% of the queries should not even be sent to the root
> servers. We found an extremely strong correlation both years: the higher the
> query rate of a client, the lower the fraction of valid queries.
> Repeated, identical and "referral-not-cached" queries constituted 69% of
> the total load on the roots during the 2007 observations. We are not in a
> position to evaluate the cost of this pollution to the root operators or to
> the Internet, nor the cost of cleaning it up. Some sources of this pollution
> could be mitigated by DNS operators locally serving common zones. For the
> March 2008 DITL experiment we will further investigate the patterns of these
> invalid queries and identify other ways to reduce the DNS pollution at the
> roots."
>
>
>
>
>
>


-- 
Joe Baptista
www.publicroot.org
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