Re: [dnsext] WG opinion on draft : Improvements to DNS Resolvers, for Resiliency, Robustness, and Responsiveness
Andrew Sullivan <ajs@shinkuro.com> Mon, 21 February 2011 22:43 UTC
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Date: Mon, 21 Feb 2011 17:43:51 -0500
From: Andrew Sullivan <ajs@shinkuro.com>
To: dnsext@ietf.org
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Subject: Re: [dnsext] WG opinion on draft : Improvements to DNS Resolvers, for Resiliency, Robustness, and Responsiveness
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No hat. On Mon, Feb 21, 2011 at 10:31:09PM +0000, Paul Vixie wrote: > well, so, the protocol gives each RR a TTL and the original specification > does not say what to do if the TTLs in an RR set differ. in BIND4 4.9, i > decided to discard the whole RR set if any of its TTLs reached zero since > otherwise we'd be modifying RR sets during TTL expiration. in RFC 2136 i > enshrined this behaviour into the protocol by declaring "RR set atomicity". > but editorially speaking i still think it's wise to say "discard when the > minimum TTL in the RR set is reached" since the wire protocol allows TTLs > to be different across an RR set and sending them out that way is not an > error or a protocol violation. My reading of RFC 2181, section 5.2 says that it is an error and a protocol violation. Does that need more clarification? A -- Andrew Sullivan ajs@shinkuro.com Shinkuro, Inc.
- Re: [dnsext] WG opinion on draft : Improvements t… David Blacka
- [dnsext] WG opinion on draft : Improvements to DN… Olafur Gudmundsson
- Re: [dnsext] WG opinion on draft : Improvements t… Brian Dickson
- Re: [dnsext] WG opinion on draft : Improvements t… Tony Finch
- Re: [dnsext] WG opinion on draft : Improvements t… Paul Vixie
- Re: [dnsext] WG opinion on draft : Improvements t… Andrew Sullivan
- Re: [dnsext] WG opinion on draft : Improvements t… Paul Vixie
- Re: [dnsext] WG opinion on draft : Improvements t… W.C.A. Wijngaards
- Re: [dnsext] WG opinion on draft : Improvements t… Andrew Sullivan
- Re: [dnsext] WG opinion on draft : Improvements t… Doug Barton
- Re: [dnsext] WG opinion on draft : Improvements t… Florian Weimer
- Re: [dnsext] WG opinion on draft : Improvements t… Florian Weimer
- Re: [dnsext] WG opinion on draft : Improvements t… Paul Vixie
- Re: [dnsext] WG opinion on draft : Improvements t… Paul Vixie
- Re: [dnsext] WG opinion on draft : Improvements t… Florian Weimer
- Re: [dnsext] WG opinion on draft : Improvements t… Florian Weimer
- Re: [dnsext] WG opinion on draft : Improvements t… Brian Dickson
- Re: [dnsext] WG opinion on draft : Improvements t… Edward Lewis
- Re: [dnsext] WG opinion on draft : Improvements t… Mark Andrews
- Re: [dnsext] WG opinion on draft : Improvements t… Paul Vixie
- Re: [dnsext] WG opinion on draft : Improvements t… Brian Dickson
- Re: [dnsext] WG opinion on draft : Improvements t… Paul Vixie
- Re: [dnsext] WG opinion on draft : Improvements t… Paul Vixie
- Re: [dnsext] WG opinion on draft : Improvements t… Tony Finch
- Re: [dnsext] WG opinion on draft : Improvements t… Florian Weimer