Re: [Doh] [Ext] a tad confused on response sizes
Tony Finch <dot@dotat.at> Tue, 05 June 2018 14:17 UTC
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Date: Tue, 05 Jun 2018 15:17:26 +0100
From: Tony Finch <dot@dotat.at>
To: Paul Hoffman <paul.hoffman@icann.org>
cc: bert hubert <bert.hubert@powerdns.com>, "doh@ietf.org" <doh@ietf.org>
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Subject: Re: [Doh] [Ext] a tad confused on response sizes
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Paul Hoffman <paul.hoffman@icann.org> wrote: > On Jun 5, 2018, at 5:05 AM, bert hubert <bert.hubert@powerdns.com> wrote: > > > > A DNS API server is allowed to answer queries with any valid DNS > > response. For example, a valid DNS response might have the TC > > (truncation) bit set in the DNS header to indicate that the server > > was not able to retrieve a full answer for the query but is > > providing the best answer it could get. A DNS API server can reply > > to queries with an HTTP error for queries that it cannot fulfill. > > In this same example, a DNS API server could use an HTTP error > > instead of a non- error response that has the TC bit set. > > > > This seems says sending a TC response is some kind of error > > Not at all. The first sentence is quite explicit. Thinking about this further, I think this is a bug, because a DoH client doesn't have any way to recover from TC. Tony. -- f.anthony.n.finch <dot@dotat.at> http://dotat.at/ Shannon, Rockall, Malin: Variable or cyclonic, 3 or 4. Slight, occasionally moderate. Mainly fair. Moderate or good.
- Re: [Doh] [Ext] a tad confused on response sizes Star Brilliant
- Re: [Doh] [Ext] a tad confused on response sizes Andrew Sullivan
- Re: [Doh] [Ext] a tad confused on response sizes Patrick McManus
- Re: [Doh] [Ext] a tad confused on response sizes Massimiliano Fantuzzi
- Re: [Doh] [Ext] a tad confused on response sizes Ray Bellis
- [Doh] a tad confused on response sizes bert hubert
- Re: [Doh] a tad confused on response sizes Dave Lawrence
- Re: [Doh] [Ext] a tad confused on response sizes Paul Hoffman
- Re: [Doh] a tad confused on response sizes Tony Finch
- Re: [Doh] [Ext] a tad confused on response sizes Tony Finch
- Re: [Doh] [Ext] a tad confused on response sizes Paul Hoffman
- Re: [Doh] [Ext] a tad confused on response sizes Andrew Sullivan
- Re: [Doh] [Ext] a tad confused on response sizes Tony Finch
- Re: [Doh] [Ext] a tad confused on response sizes Stephane Bortzmeyer
- Re: [Doh] [Ext] a tad confused on response sizes Stephane Bortzmeyer
- Re: [Doh] [Ext] a tad confused on response sizes Tony Finch
- Re: [Doh] [Ext] a tad confused on response sizes Andrew Sullivan
- Re: [Doh] [Ext] a tad confused on response sizes Star Brilliant
- Re: [Doh] [Ext] a tad confused on response sizes Tony Finch
- Re: [Doh] [Ext] a tad confused on response sizes Paul Hoffman
- Re: [Doh] [Ext] a tad confused on response sizes Dave Lawrence
- Re: [Doh] [Ext] a tad confused on response sizes Dave Lawrence
- Re: [Doh] [Ext] a tad confused on response sizes Star Brilliant
- Re: [Doh] [Ext] a tad confused on response sizes Tony Finch
- Re: [Doh] [Ext] a tad confused on response sizes Tony Finch
- Re: [Doh] [Ext] a tad confused on response sizes Star Brilliant
- Re: [Doh] [Ext] a tad confused on response sizes Tony Finch
- Re: [Doh] [Ext] a tad confused on response sizes Paul Hoffman
- Re: [Doh] [Ext] a tad confused on response sizes Andrew Sullivan
- Re: [Doh] [Ext] a tad confused on response sizes Tony Finch