[dns-operations] Setting DO=1 only if validation is possible

Paul Vixie vixie at isc.org
Sun Oct 4 17:36:47 UTC 2009

> From: Florian Weimer <fw at deneb.enyo.de>
> Date: Sun, 04 Oct 2009 16:27:51 +0000
> ...
> Does this mean that there are no security-aware, validating DNSSEC
> resolvers which set DO=1 only when necessary?

as far as i know, it is always necessary to set DO=1.

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