David Botham wrote in
news:ck1i5t$lso$1@sf1.isc.org:

>> client 81.206.200.71#1026: query: . IN NS

>
> I am fairly certain this log entry indicates that the computer at IP
> address 81.206.200.71 is asking your name server for the NS RR's for
> the root zone.


It seems clear, but is this normal that those servers asks that every ten
second ?
Aren't they supposed to keep a cache of this kind of information ?

--
Nicolas Ecarnot