[dns-operations] Paranoid mode for resolvers

Florian Weimer fweimer at bfk.de
Mon Sep 5 11:19:11 UTC 2011

* Jay Daley:

> Has anybody come across a resolver that attempts to deal with this,
> say by re-checking a new (to the resolver) delegation 10, 30, 60, etc
> minutes afterwards ignoring the TTL until after those checks have
> passed, assuming the TTL is longer?  Sort of a paranoid mode that
> operators can configure the resolver to follow.

Some of us cap TTLs at a couple of minutes.  It basically has the same

Florian Weimer                <fweimer at bfk.de>
BFK edv-consulting GmbH       http://www.bfk.de/
Kriegsstraße 100              tel: +49-721-96201-1
D-76133 Karlsruhe             fax: +49-721-96201-99

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