[dns-operations] "Rogers: NXDOMAIN means NXSERVICE for you"

Matt Ghali matt at snark.net
Wed Jan 3 19:23:11 UTC 2007

On Wed, 3 Jan 2007, Fergie wrote:

> I file this under "Stupid DNS Tricks". :-)

Indeed. It really is a half baked solution; but it is good to see 
them trying to address the zombie problem at all..

> It's easy to see that, if the checks are not made somewhat more
> bulletproof, you senselessly cut off your downstream customers.

It's also likely that the heuristics work extremely well for the 
99.98 customers using their resolvers, who have a few random Windows 
boxes behind their CPE.

Anyone doing anything more complex than that really should be 
running their own caching nameserver, for a variety of reasons 
besides this anyway.

Lets be careful about demonizing ISPs for not addressing the zombie 
problem, and then demonizing them again for trying to be more 


--matt at snark.net------------------------------------------<darwin><
   Moral indignation is a technique to endow the idiot with dignity.
                                                 - Marshall McLuhan

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