Re: [Doh] New query formats
Ben Schwartz <bemasc@google.com> Tue, 03 April 2018 18:53 UTC
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From: Ben Schwartz <bemasc@google.com>
Date: Tue, 03 Apr 2018 14:53:45 -0400
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To: Stephane Bortzmeyer <bortzmeyer@nic.fr>
Cc: Martin Thomson <martin.thomson@gmail.com>, DoH WG <doh@ietf.org>
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Subject: Re: [Doh] New query formats
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This suggestion has now been implemented in draft-05. Do you feel the new text achieves your goal? In particular, I will note the following sentences: The DNS API server defines the URI used by the > request through the use of a URI Template [RFC6570]. Configuration > and discovery of the URI Template is done out of band from this > protocol. and These examples use a DNS API service with a URI Template of > "https://dnsserver.example.net/dns-query{?dns}" Based on this text, it seems to me that if a client is configured out of band with a template of this kind, and the server is later upgraded to support additional query forms, the client cannot exercise those forms until after a new out-of-band configuration update, because it does not have any instructions about how to map the new values into a URI. This is in contrast to draft-04's URL-based configuration, which would allow a client to attempt new query forms without requiring a configuration update. On Mon, Mar 26, 2018 at 4:30 AM, Stephane Bortzmeyer <bortzmeyer@nic.fr> wrote: > On Thu, Mar 22, 2018 at 02:32:40PM +0000, > Martin Thomson <martin.thomson@gmail.com> wrote > a message of 45 lines which said: > > > 3. Specify that other parameters can be used to carry information > > about queries. Servers that find unknown query parameters MUST ignore > > them. > > > > 4. Define a new registry for header field parameters. (The URI > > template would have covered this neatly, so you could avoid that.) > > Yes, RFC 6570 is the right way to specify these parameters. > > You can get some inspiration from my (old) DNS looking glass: > > http://www.bortzmeyer.org/dns-lg-usage.html > > _______________________________________________ > Doh mailing list > Doh@ietf.org > https://www.ietf.org/mailman/listinfo/doh >
- [Doh] New query formats Martin Thomson
- Re: [Doh] New query formats Stephane Bortzmeyer
- Re: [Doh] New query formats Ben Schwartz
- Re: [Doh] New query formats Martin Thomson