[dns-operations] Getting rid of ISP's recursive DNS servers? (Was: Eircom "DNS Attacks" ?

Florian Weimer fw at deneb.enyo.de
Sun Jul 19 07:18:29 UTC 2009


* Stephane Bortzmeyer:

> I wonder what do the root name server operators think about his
> suggestion?

Uhm, what have the roots got to do with it?

Anyway, there's a way to reduce the impact of cache poisoning even for
large shared resolvers:

<http://www.ops.ietf.org/lists/namedroppers/namedroppers.2008/msg01563.html>

And a bit more elaborate explanation:

<http://www.ops.ietf.org/lists/namedroppers/namedroppers.2009/msg00469.html>

The downside is that it doubles the number of upstream queries (or
worse).



More information about the dns-operations mailing list