Re: RFC 6471 and "listing the Internet" as a punishment

At 11:23 25-01-2012, Dave Warren wrote:
>I have to wonder, if a DNSBL were being operated entirely on a free 
>basis (rather than a freemium model), might it not be better to take 
>advantage of the large caches out there rather than having thousands 
>of individual servers performing the same mundane set of lookups individually?

There are no large caches out there.  That's not how DNS works in my opinion.

>Obviously this negates the DNSBL's ability to try and pull cash out 
>of the larger entities, but purely from a resource management point 
>of view, if someone wants to offer a front-line cache for free, 
>surely that should reduce load.

It is expensive to provide such a cache for free.  Why would someone 
want to offer such a service for free?

Regards,
-sm