Re: [Asrg] DNS basics, was overloading server names doesn't work
Douglas Otis <dotis@mail-abuse.org> Tue, 09 February 2010 19:25 UTC
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Date: Tue, 09 Feb 2010 11:26:31 -0800
From: Douglas Otis <dotis@mail-abuse.org>
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Subject: Re: [Asrg] DNS basics, was overloading server names doesn't work
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On 2/9/10 10:34 AM, Dave CROCKER wrote: > On 2/9/2010 9:11 AM, John R Levine wrote: >>>>>> Nope, that won't work. CNAMEs don't do a partial match. >>> Where did I or anyone else specify a partial match? >> The user thinks his POP server is called mail.btinternet.com. When he >> looks up _report.mail.btinternet.com, what do you expect to happen? > He'll get a TXT record back. This is nothing but exactly the same > mechanism that is used for DKIM and SRV, albeit with a different > underscore subdomain. This overlooks an issue created by SPF having defined TXT records without prefix labels to permit wildcard use. A query for _report.mail.btinternet.com IN TXT might obtain an unexpected wildcard TXT record. There is no registry related to disambiguating TXT records. When used for DKIM, cryptography attests validity. There might be a better chance for an SRV label registry of being developed. SRV records offers a means to establish redirection, having a similar effect as a CNAME. By using SRV records, a receiving domain controls where reports are to be sent. SRV records even allows for load balancing techniques. -Doug
- [Asrg] Iteration #3. Chris Lewis
- Re: [Asrg] Iteration #3. Dave CROCKER
- Re: [Asrg] Iteration #3. Steve Atkins
- Re: [Asrg] Iteration #3. Chris Lewis
- Re: [Asrg] Iteration #3. Derek Diget
- Re: [Asrg] Iteration #3. Alessandro Vesely
- Re: [Asrg] Iteration #3. Chris Lewis
- Re: [Asrg] Iteration #3. Chris Lewis
- [Asrg] Consensus Call - submission via posting (w… Dave CROCKER
- Re: [Asrg] Consensus Call - submission via postin… Lyndon Nerenberg (VE6BBM/VE7TFX)
- Re: [Asrg] Consensus Call - submission via postin… Chris Lewis
- Re: [Asrg] Consensus Call - submission via postin… Steve Atkins
- Re: [Asrg] Consensus Call - submission via postin… Dave CROCKER
- Re: [Asrg] Consensus Call - submission via postin… Dotzero
- Re: [Asrg] Iteration #3. Derek Diget
- Re: [Asrg] Consensus Call - submission via postin… Derek Diget
- Re: [Asrg] Consensus Call - submission via postin… Bart Schaefer
- Re: [Asrg] Consensus Call - submission via postin… Alessandro Vesely
- Re: [Asrg] Iteration #3. Alessandro Vesely
- Re: [Asrg] Iteration #3. Daniel Feenberg
- Re: [Asrg] Iteration #3. John Levine
- Re: [Asrg] Iteration #3. Daniel Feenberg
- Re: [Asrg] Iteration #3. Dave CROCKER
- Re: [Asrg] Iteration #3. John Levine
- Re: [Asrg] Iteration #3. Dave CROCKER
- Re: [Asrg] Consensus Call - submission via postin… Ian Eiloart
- Re: [Asrg] Consensus Call - submission via postin… John Levine
- Re: [Asrg] Consensus Call - submission via postin… BOBOTEK, ALEX (ATTCINW)
- Re: [Asrg] Consensus Call - submission via postin… Andrew Richards
- [Asrg] who has the message (was Re: Consensus Cal… Dave CROCKER
- Re: [Asrg] Consensus Call - submission via postin… Chris Lewis
- Re: [Asrg] Consensus Call - submission via postin… Andrew Richards
- Re: [Asrg] who has the message (was Re: Consensus… Andrew Richards
- Re: [Asrg] who has the message (was Re: Consensus… Dave CROCKER
- Re: [Asrg] who has the message (was Re: Consensus… Chris Lewis
- Re: [Asrg] who has the message (was Re: Consensus… John Levine
- Re: [Asrg] who has the message (was Re: Consensus… Dave CROCKER
- Re: [Asrg] overloading server names doesn't work,… John R Levine
- Re: [Asrg] Consensus Call - submission via postin… Bill Cole
- Re: [Asrg] overloading server names doesn't work,… Daniel Feenberg
- Re: [Asrg] who has the message (was Re: Consensus… Ian Eiloart
- Re: [Asrg] Consensus Call - submission via postin… Ian Eiloart
- Re: [Asrg] who has the message (was Re: Consensus… Ian Eiloart
- Re: [Asrg] who has the message (was Re: Consensus… Andrew Richards
- Re: [Asrg] who has the message (was Re: Consensus… Andrew Richards
- Re: [Asrg] who has the message (was Re: Consensus… Ian Eiloart
- Re: [Asrg] who has the message (was Re: Consensus… Andrew Richards
- Re: [Asrg] who has the message (was Re: Consensus… Ian Eiloart
- Re: [Asrg] overloading server names doesn't work,… Dave CROCKER
- Re: [Asrg] who has the message (was Re: Consensus… Paul Russell
- Re: [Asrg] overloading server names doesn't work,… John R Levine
- Re: [Asrg] overloading server names doesn't work,… Dave CROCKER
- Re: [Asrg] DNS basics, was overloading server nam… John R Levine
- Re: [Asrg] Consensus Call - submission via postin… Andrew Richards
- Re: [Asrg] Consensus Call - submission via postin… Ian Eiloart
- Re: [Asrg] DNS basics, was overloading server nam… Dave CROCKER
- Re: [Asrg] DNS basics, was overloading server nam… John R Levine
- Re: [Asrg] Consensus Call - submission via postin… Jose-Marcio Martins da Cruz
- Re: [Asrg] DNS basics, was overloading server nam… Douglas Otis
- Re: [Asrg] Consensus Call - submission via postin… Ian Eiloart
- Re: [Asrg] Consensus Call - submission via postin… Jose-Marcio Martins da Cruz