On 3 Nov 2016, at 21:16, william manning wrote:
What method is in place to ensure that the cache is, #1, checked
before
emitting priming queries, #2, that if there is already data (complete
or
partial) in the cache, how is the client supposed to determine if the
cached data is preferred over unverified, remote data? Or does the
client
operate with the presumption that local data is always wrong and the
best
data is always external?
Inquiring Minds want to know.
There is no such method in place. This document describes how to prime
resolvers and when you should, but does not prohibit any other use of
the same DNS queries when priming is not needed.
--Paul Hoffman