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| I don't think another 10% load on the root nameservers is a huge
deal,
| so I wouldn't use the word "harmful" but I guess this is a special
case
Again. You'll have to ask the operators of the root-zone if they
consider 11-14% a big deal. Maybe some of them are listening....
Well we as root-server operator will have to take the costs of
upgrading to handle the total query volume....10-15% is then quite a
lot.
| I read a report that only 2% of the hits on the root servers is both
| legitimate and useful anyway.
~From the presentation I refer to which unfortunately is in Swedish but
you can probably read the numbers anyway... :
http://www.iis.se/Internetdagarna/2003/23-robust-dns/id03-23-lars-
johanliman.pdf
this is clearly not the case. The rfc1918-queries consistute the bulk
of bad queries ("DUMMA frågor" on page 4 of the presentation). I must
however confess ignorance as to what queries are 'useful'. Presumably
even the rfc1918-queries were deemed useful for someone since they
were sent in the first place.
The 2% figure I think was from an analysis of f.root-servers.net.
i.root-servers.net seems to be seeing more "valid" queries than f. I
guess these figures are different from each server. I think Liman said
that we where seeing 25% garbage in total. I think queries from and
about RFC1918 addresses was around 20% of those. It would be fun to see
what percentage of the Ipv6 related queries that are for site-local
addresses...
- - kurtis -
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