Re: [dane] An AD bit discussion
Tony Finch <dot@dotat.at> Wed, 26 February 2014 18:14 UTC
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Date: Wed, 26 Feb 2014 18:14:09 +0000
From: Tony Finch <dot@dotat.at>
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Subject: Re: [dane] An AD bit discussion
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Viktor Dukhovni <viktor1dane@dukhovni.org> wrote: > > It is in fact problematic if both 127.0.0.1 and another nameserver > are listed. The correct semantics of that are hard to define. It > makes more sense to define a boolean primitive that marks all the > nameservers collectively as either trusted or not. Yes. > The RES_USE_DNSSEC flag turns on the "DO" bit. I would be surprised > if RES_USE_EDNS0 enabled "DO". Er yes, you are right. I was confused by the way ssh uses the resolver: it sets RES_USE_DNSSEC only if RES_USE_EDNS0 is set, so putting "options edns0" in /etc/resolv.conf turns on ssh's trust-AD behaviour. There is not a separate resolv.conf option for DNSSEC. Grotty. (Note that when I make statements about resolver behaviour I am checking boh FreeBSD and glibc - they are pretty consistent in all this.) > As for setting the "AD" bit in the request automatically, it probably > should still require an explicit indication of interest from the > application or be set via a default option value /etc/resolv.conf. Perhaps, though I think the AD flag is pretty benign. Tony. -- f.anthony.n.finch <dot@dotat.at> http://dotat.at/ Forties, Cromarty, Forth, Tyne, Dogger: Southwest 5 to 7, backing south or southeast 6 to gale 8 for a time. Moderate or rough. Showers then rain. Good, becoming moderate or poor.
- Re: [dane] An AD bit discussion Paul Wouters
- [dane] An AD bit discussion Paul Wouters
- Re: [dane] An AD bit discussion Mark Andrews
- Re: [dane] An AD bit discussion Ondřej Surý
- Re: [dane] An AD bit discussion Viktor Dukhovni
- Re: [dane] An AD bit discussion Viktor Dukhovni
- Re: [dane] An AD bit discussion Petr Spacek
- Re: [dane] An AD bit discussion Petr Spacek
- Re: [dane] An AD bit discussion Viktor Dukhovni
- Re: [dane] An AD bit discussion Tony Finch
- Re: [dane] An AD bit discussion Viktor Dukhovni
- Re: [dane] An AD bit discussion Petr Spacek
- Re: [dane] An AD bit discussion Viktor Dukhovni
- Re: [dane] An AD bit discussion Olafur Gudmundsson
- Re: [dane] An AD bit discussion Tony Finch
- Re: [dane] An AD bit discussion Tony Finch
- Re: [dane] An AD bit discussion Viktor Dukhovni
- Re: [dane] An AD bit discussion Tony Finch
- Re: [dane] An AD bit discussion Wiley, Glen
- Re: [dane] An AD bit discussion James Cloos
- Re: [dane] An AD bit discussion Viktor Dukhovni
- Re: [dane] An AD bit discussion Andreas Schulze
- Re: [dane] An AD bit discussion Mark Andrews
- Re: [dane] An AD bit discussion Viktor Dukhovni
- Re: [dane] An AD bit discussion Mark Andrews
- Re: [dane] An AD bit discussion Viktor Dukhovni
- Re: [dane] An AD bit discussion Paul Wouters
- Re: [dane] An AD bit discussion Viktor Dukhovni
- Re: [dane] An AD bit discussion Mark Andrews
- Re: [dane] An AD bit discussion Viktor Dukhovni
- Re: [dane] An AD bit discussion Andrew Sullivan
- Re: [dane] An AD bit discussion Mark Andrews
- Re: [dane] An AD bit discussion Andrew Sullivan
- Re: [dane] An AD bit discussion Mark Andrews
- Re: [dane] An AD bit discussion Andrew Sullivan
- Re: [dane] An AD bit discussion Mark Andrews
- Re: [dane] An AD bit discussion Viktor Dukhovni
- Re: [dane] An AD bit discussion Paul Wouters
- Re: [dane] An AD bit discussion Viktor Dukhovni
- Re: [dane] An AD bit discussion Petr Spacek
- Re: [dane] An AD bit discussion Viktor Dukhovni
- Re: [dane] An AD bit discussion (correction) Viktor Dukhovni
- Re: [dane] An AD bit discussion Paul Wouters
- Re: [dane] An AD bit discussion Paul Wouters
- Re: [dane] An AD bit discussion Viktor Dukhovni
- Re: [dane] An AD bit discussion Tony Finch
- Re: [dane] An AD bit discussion Petr Spacek
- Re: [dane] An AD bit discussion (correction) Petr Spacek
- Re: [dane] An AD bit discussion (+concerns from g… Petr Spacek
- Re: [dane] An AD bit discussion (correction) Viktor Dukhovni
- Re: [dane] An AD bit discussion (+concerns from g… Viktor Dukhovni
- Re: [dane] An AD bit discussion Viktor Dukhovni
- Re: [dane] An AD bit discussion (correction) Viktor Dukhovni
- [dane] Proposal: AD bit handling in stub-resolver… Petr Spacek
- Re: [dane] An AD bit discussion Michael Richardson
- Re: [dane] An AD bit discussion Simo Sorce
- Re: [dane] An AD bit discussion Michael Richardson
- Re: [dane] An AD bit discussion Michael Richardson
- Re: [dane] An AD bit discussion Simo Sorce
- Re: [dane] An AD bit discussion Michael Richardson
- Re: [dane] An AD bit discussion Michael Richardson
- Re: [dane] Proposal: AD bit handling in stub-reso… Viktor Dukhovni
- Re: [dane] An AD bit discussion Florian Weimer
- Re: [dane] An AD bit discussion Mark Andrews
- Re: [dane] An AD bit discussion Petr Spacek
- Re: [dane] An AD bit discussion Mark Andrews
- Re: [dane] An AD bit discussion Petr Spacek