[Gllug] so after the DNS - Attack

Jason Clifford jason at ukfsn.org
Wed Feb 7 14:09:24 UTC 2007


On Wed, 7 Feb 2007, Juergen Schinker wrote:

> > People generally do not run their own name servers but rather use their
> > ISP's CACHING name servers.
> >
> the Caches will soon be empty

Why? 

It seems that you just don't understand DNS. Cached data will generally 
remain in place for *at least* as long as the TTL specified with the 
record. While some people, who expect transition in respect of their data, 
will have a short TTL most will specify 1 day or 1 week.

That's plenty of time for the root name servers to get sorted if 
necessary.

> a DDoS will affect them and i just wanted to present an Alternative
> in the naive hope that this network won't be affected...

Very naive indeed! DDoSing your alternative would be trivially easy 
compared with doing so to the proper root servers.

Jason
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