Re: [DNSOP] Deprecating the status opcode

Ray Bellis <> Thu, 16 May 2019 10:50 UTC

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From: Ray Bellis <>
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Date: Thu, 16 May 2019 11:50:49 +0100
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Subject: Re: [DNSOP] Deprecating the status opcode
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On 16/05/2019 11:23, Petr Špaček wrote:

> Personally I think it is not worth the effort, it will just add one more
> RFC to read and does not help the protocol maintenance.
> I would say that it is better to have one "cleanup" RFC instead of
> one-off doc with one useful paragraph in it. With one bigger document we
> could say to newcommers "this is list of things you can ignore when you
> encounter them in pile of DNS RFCs".

Must as I like simple short documents, I'm inclined to agree.

I recently had an interesting debate with someone about the correct use 
of the flag bits for opcodes other than QUERY.

While some later docs do talk about uses of those bits for e.g. UPDATE, 
there's no place I could find that specifically says that header bits 
are opcode specific and MUST NOT be copied into the response without 
explicit (per-opcode) instruction.