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Re: [DNSOP] Review of draft-livingood-dns-redirect-00

Florian Weimer <fw@deneb.enyo.de> Thu, 16 July 2009 08:09 UTC

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From: Florian Weimer <fw@deneb.enyo.de>
To: dnsop@ietf.org
References: <C67B83C4.E855%Jason_Livingood@cable.comcast.com> <20090713201345.GA675@apb-laptoy.apb.alt.za>
Date: Thu, 16 Jul 2009 10:08:02 +0200
In-Reply-To: <20090713201345.GA675@apb-laptoy.apb.alt.za> (Alan Barrett's message of "Mon, 13 Jul 2009 22:13:45 +0200")
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Subject: Re: [DNSOP] Review of draft-livingood-dns-redirect-00
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* Alan Barrett:

> I think that this sort of lying recursive resolver is a bad idea.
> Instead, I suggest a new "SUGGESTION" RR type that could be returned
> in the additional section of an error message.  For example, if
> you ask for www.example.invalid, you could get back an NXDOMAIN
> error, with "SUGGESTION URL=http://10.2.3.4/www.example.invalid"
> in the additional section, and if you ask for censored.example.
> you could get back a SERVFAIL response with "SUGGESTION
> URL=http://10.2.3.4/why-we-censor.html" in the additional section.

This would be protocol development, so it's out of the scope of this
WG.  There's also the problem that some folks want to do DNS rewriting
*now*.  If client-side changes are required, they fear that they will
out of business before they are implemented.

(But I agree that a clean solution requires protocol development.)

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