[dns-operations] DNS deluge for x.p.ctrc.cc

Ondřej Surý ondrej.sury at nic.cz
Tue Feb 28 08:17:47 UTC 2006


On Mon, 2006-02-27 at 16:05 -0600, Joe Greco wrote:
> > > Gadi,
> > > 
> > > If you cannot spoof, then when you request a record for x.p.ctrc.cc and
> > > it returns a 4000 byte record, it's returning it to you.
> > > 
> > > Now, explain what the problem with that is.
> > 
> > If you don't own the machines attacking, and you send one packet from 
> > each machine every 3 seconds...
> > 
> > "It's simple, numbers -- they have more"
> > 
> > How big of a botnet are you going to need?
> 
> You've lost me.  Draw a picture or fill in the blanks.

Imagine big ISP with lot of zombies.  All those zombies sends query to
recursor => big ISP's router(s) is in trouble.

Sure, it's different type of attack... but still attack.

(At least how I do understand it from Gadi's message).

Ondrej.
-- 
 Ondřej Surý
 technický ředitel/Chief Technical Officer
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