Re: [Uta] draft-ietf-uta-mta-sts-07 STS policy removal.
Viktor Dukhovni <ietf-dane@dukhovni.org> Thu, 10 August 2017 17:47 UTC
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From: Viktor Dukhovni <ietf-dane@dukhovni.org>
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Subject: Re: [Uta] draft-ietf-uta-mta-sts-07 STS policy removal.
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On Thu, Aug 10, 2017 at 10:02:41AM -0700, Daniel Margolis wrote: > Also, note that this slightly oddifies the _DNS_ caching story; the > NXDOMAIN TTL is derived from the SOA record, so unlike a "real" TXT record, > the TTL on the "null" record comes (obviously) from a different place, > which is a little bit (but only a little bit) weird in terms of usability > of the configuration parameters, so to speak. Yes, the negative TTL is from the SOA, but the TXT record TTL is not something the sending MTA has to concern itself with, the TTLs are handled transparently by the resolver. The difference might plausibly matter to the administrator of the receiving domain, who might want to adjust the negative TTL, but he might do that regardless of whether we refresh cached (!= "none") policies even when the TXT is not present. That is, if you want a shorter or longer negative TTL, you would do tune it regardless of how we decide this question. > If anyone else has read this far on the thread, I'm happy to get feedback > on this proposal from others on the list. Yes, please! -- Viktor.
- [Uta] I-D Action: draft-ietf-uta-mta-sts-07.txt internet-drafts
- [Uta] draft-ietf-uta-mta-sts-07 STS policy remova… Viktor Dukhovni
- Re: [Uta] draft-ietf-uta-mta-sts-07 STS policy re… Daniel Margolis
- Re: [Uta] draft-ietf-uta-mta-sts-07 STS policy re… Ilari Liusvaara
- Re: [Uta] draft-ietf-uta-mta-sts-07 STS policy re… Ilari Liusvaara
- Re: [Uta] draft-ietf-uta-mta-sts-07 STS policy re… Viktor Dukhovni
- Re: [Uta] draft-ietf-uta-mta-sts-07 STS policy re… Daniel Margolis
- Re: [Uta] draft-ietf-uta-mta-sts-07 STS policy re… Daniel Margolis
- Re: [Uta] draft-ietf-uta-mta-sts-07 STS policy re… Viktor Dukhovni
- Re: [Uta] draft-ietf-uta-mta-sts-07 STS policy re… Daniel Margolis
- Re: [Uta] draft-ietf-uta-mta-sts-07 STS policy re… Peter Gutmann
- Re: [Uta] draft-ietf-uta-mta-sts-07 STS policy re… Viktor Dukhovni
- Re: [Uta] draft-ietf-uta-mta-sts-07 STS policy re… Daniel Margolis
- Re: [Uta] draft-ietf-uta-mta-sts-07 STS policy re… Viktor Dukhovni
- Re: [Uta] draft-ietf-uta-mta-sts-07 STS policy re… Daniel Margolis
- Re: [Uta] draft-ietf-uta-mta-sts-07 STS policy re… Viktor Dukhovni
- Re: [Uta] draft-ietf-uta-mta-sts-07 STS policy re… Daniel Margolis
- Re: [Uta] draft-ietf-uta-mta-sts-07 STS policy re… Viktor Dukhovni
- Re: [Uta] draft-ietf-uta-mta-sts-07 STS policy re… Daniel Margolis
- Re: [Uta] draft-ietf-uta-mta-sts-07 STS policy re… Viktor Dukhovni
- Re: [Uta] draft-ietf-uta-mta-sts-07 STS policy re… Daniel Margolis
- Re: [Uta] draft-ietf-uta-mta-sts-07 STS policy re… Jim Fenton
- Re: [Uta] draft-ietf-uta-mta-sts-07 STS policy re… Viktor Dukhovni
- Re: [Uta] draft-ietf-uta-mta-sts-07 STS policy re… Jim Fenton
- Re: [Uta] draft-ietf-uta-mta-sts-07 STS policy re… Daniel Margolis