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Re: [radext] Stephen Farrell's Yes on draft-ietf-radext-dynamic-discovery-13: (with COMMENT)

Stephen Farrell <stephen.farrell@cs.tcd.ie> Fri, 10 April 2015 09:44 UTC

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Date: Fri, 10 Apr 2015 10:44:40 +0100
From: Stephen Farrell <stephen.farrell@cs.tcd.ie>
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To: Stefan Winter <stefan.winter@restena.lu>, The IESG <iesg@ietf.org>
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Subject: Re: [radext] Stephen Farrell's Yes on draft-ietf-radext-dynamic-discovery-13: (with COMMENT)
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On 10/04/15 07:34, Stefan Winter wrote:
> It's a bit tricky: a RADIUS server typically has a DNS hostname (and
> that may want to/need to be placed in the cert for arbitrary reasons),
> and serves NAI realms on a RADIUS level - but the two are not
> necessarily identical.
> So there would be several sAN:DNS entries in the cert, one or more
> pertaining to the hostname, one or more pertaining to the NAI realms served.
> I guess a CA policy could "fix" that ambiguity by hard-wiring that the
> first sAN:DNS in its certs would semantically mean "the host" and any
> following ones would be "NAI realms served" but it doesn't strike me as
> a terribly clean solution.

Fair enough yeah - if there's other DNS names involved then
probably the otherName thing is best.

Cheers,
S.

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