Re: [Doh] meta qtypes

Patrick McManus <pmcmanus@mozilla.com> Sun, 18 March 2018 15:44 UTC

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From: Patrick McManus <pmcmanus@mozilla.com>
Date: Sun, 18 Mar 2018 15:44:54 +0000
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Subject: Re: [Doh] meta qtypes
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Hi - DoH itself doesn't require axfr/etc anywhere that DNS would not (I'm
not aware of whether it does or not) - the text is just meant to give the
HTTP considerations when it does carry larger DNS responses such as that.

WRT HTTP caching - section 4 of DoH talks about how HTTP freshness
lifetimes should be set for DoH responses. Is there something different
here?

-Patrick


On Sun, Mar 18, 2018 at 2:38 PM, Miek Gieben <miek@miek.nl>; wrote:

> Hi,
>
> -03 has the following text in section 7.1.
>
>   Other types of DNS data, such as
>   zone transfers, may be larger and benefit more from revalidation.
>   DNS API servers may wish to consider whether providing these
>   validation enabling response headers is worthwhile.
>
> this implies DoH servers need to support IXFR/AXFR (fine), but that
> replies to these may now be cached? I think this is new behavior from a DNS
> standpoint.
>
> (Should the draft also mention dynamic updates, notify messages and other
> opcodes as being supported?)
>
> /Miek
>
> --
> Miek Gieben
>
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