ad.doubleclick.net missing from DNS?

John Palmer nanog at adns.net
Tue Jul 27 22:21:26 UTC 2004


Now the question is, can one easily block all of doubleclick.net by 127.0.0.1 in the hosts file
on a wincrash box? They appear to have ad, ad2, ad3, m2, m3.doubleclick.net. Anyone know
what hosts to list??? (ie: ad2, ad3 ... to ad<x>???)


----- Original Message ----- 
From: "Henry Linneweh" <hrlinneweh at sbcglobal.net>
To: "Sean Donelan" <sean at donelan.com>; <nanog at merit.edu>
Sent: Tuesday, July 27, 2004 17:10
Subject: Re: ad.doubleclick.net missing from DNS?


>
> While I disagree with the method of the attacker, I
> can understand the reasoning behind an attack on a
> company that is considered a spyware company,
> doubleclick certainly has turned up more than once on
> my version of spybot as a site to block.....
>
> -Henry
>
> --- Sean Donelan <sean at donelan.com> wrote:
> >
> >
> >
> http://www.washingtonpost.com/wp-dyn/articles/A18735-2004Jul27.html
> >   DoubleClick spokeswoman Jennifer Blum said the
> > attack targeted the
> >   company's domain name servers (DNS) -- machines
> > that help direct
> >   Internet traffic -- causing "severe service
> > disruptions" for all 900 of
> >   its customers. Blum said the outage was caused by
> > a distributed
> >   denial-of-service attack, in which hackers use the
> > firepower of
> >   thousands of hijacked computers to flood a Web
> > site with so many bogus
> >   Web page requests that it renders the site
> > unavailable to legitimate
> >   users.
> > [...]
> >   The FBI is not investigating the incident because
> > DoubleClick has not
> >   filed a report, said bureau spokeswoman Megan
> > Baroska.
> >
> >
>
>
>





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