[dns-operations] resolvers considered harmful

[Andrew Sullivan]

On Wed, Oct 22, 2014 at 11:19:45AM -0700, David Conrad wrote:
> 
> That cost is discussed in the paper (section 5).

Their model doesn't make it a "large" increase, and I think that's
because of their unrealistic assumptions about actual use.  The
problem is that the really popular domains on the Internet (Google is
one example they do discuss) have completely different patterns than
everyone else.  The mitigation technique of increasing TTLs imposes a
cost on the operator of the popular domain (a cost in terms of
flexibility).  The authors seem to think this is no large cost, and I
disagree.

A

-- 
Andrew Sullivan
ajs at anvilwalrusden.com