Re: [dnsext] Fwd: djb on NXDOMAIN/NODATA for non-terminals

Florian Weimer <fweimer@bfk.de> Tue, 29 March 2011 15:37 UTC

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To: Paul Vixie <vixie@isc.org>
References: <AANLkTimCZVyag8+Pv8zJsah2B-C=h3bPJ=DNVVo3agLc@mail.gmail.com> <34319.1301351478@nsa.vix.com> <BANLkTikkx4ndK3TpByptuRdtPGuFztm2yA@mail.gmail.com> <65033.1301383238@nsa.vix.com> <82ei5qz3bi.fsf@mid.bfk.de> <84978.1301403827@nsa.vix.com>
From: Florian Weimer <fweimer@bfk.de>
Date: Tue, 29 Mar 2011 15:38:55 +0000
In-Reply-To: <84978.1301403827@nsa.vix.com> (Paul Vixie's message of "Tue\, 29 Mar 2011 13\:03\:47 +0000")
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Subject: Re: [dnsext] Fwd: djb on NXDOMAIN/NODATA for non-terminals
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* Paul Vixie:

>> And regarding the idea of a new EDNS option---we already have plenty
>> of NXDOMAIN signalling in the form of NSEC(3) records.  We just have
>> to agree to use it.  What's worse, it seems to me that past experience
>> shows that EDNS options cause interoperability issues, too.
>
> this sounds like a veiled suggestion that we remove this from resimprove

I strongly believe that this would improve the quality of the document
(in terms of reflecting existing practice), so yes. 8-)

> and that someone get working on an aggressive negative caching proposal?

I'm not sure if it is worth the effort.  But if better negative
caching is the goal, DNSSEC data seems a reasonable candidate for
further information.

-- 
Florian Weimer                <fweimer@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