Re: [certid] [Spam] Re: URI match

Shumon Huque <shuque@isc.upenn.edu> Thu, 01 April 2010 18:01 UTC

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Date: Thu, 1 Apr 2010 14:01:47 -0400
From: Shumon Huque <shuque@isc.upenn.edu>
To: Peter Saint-Andre <stpeter@stpeter.im>
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Subject: Re: [certid] [Spam] Re: URI match
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On Thu, Apr 01, 2010 at 11:53:14AM -0600, Peter Saint-Andre wrote:
> 
> > Another way around this is to use URI/SRVName, but also have a 
> > dNSName that includes an "application specific server name" which
> > might need to be locally configured in the client. See:
> > 
> >   http://www.ietf.org/mail-archive/web/apps-discuss/current/msg00935.html
> 
> Shumon, including SRV query names in dNSName seems novel to me. Is that
> specified or recommended anywhere? Why not use SRVName instead and leave
> dNSName as a pure domain name?
> 
> Peter

Yup, that is novel, and needs more discussion, so I agree with you.

So the first example I proposed in that note is what I would deploy:

	dNSName mail.example.com
	otherName SRVName _imap.example.org

I wouldn't put "example.com" in dNSName, because then it didn't
constrain that certificate to only the IMAP service. Although I
fully expect some sites wouldn't care.

--Shumon.