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DSKPP review brings up HTTPSubstrate-16 ISSUE-16; [URNsAndRegistries-50 ISSUE-50]

From: Dan Connolly <connolly@w3.org>
Date: Wed, 17 Oct 2007 16:37:53 -0500
To: www-tag <www-tag@w3.org>
Cc: public-ietf-w3c <public-ietf-w3c@w3.org>
Message-Id: <1192657073.25511.168.camel@pav>

This recent IESG review suggests lots of interesting resources
shouldn't have http: URIs. I'm just starting to look into
it, so I haven't decided whether I agree...

"At this point it's inevitable we'll end up with intrusive firewalls on
port 80 that will break anything beyond stock browser-based HTTP. "
 -- Chris Newman 21 Sep 2007

"I'll give two examples of HTTP-based protocols with separate ports
where that was clearly the right technical choice in my opinion:
IPP: RFC 2910
SIP: RFC 3261

I'll also mention that the Mail Submission protocol runs on port 587
primarily, but can also run on port 25. That's a practical way to (1)
remain backwards compatible with deployed usage or limitations. (2)
provide a separate port when it's helpful to avoid middle-box
restrictions on an overused/abused port like port 25.

It's my technical opinion there should be a separate port registered for
HTTP access to information used to validate security credentials (CRLs,
OCSP, etc) with port 80 as a fallback for situations where the separate
port can't be used and for legacy use."

The thread continues; for example, Newman in reply to Hallam-Baker...

Dan Connolly, W3C http://www.w3.org/People/Connolly/
gpg D3C2 887B 0F92 6005 C541  0875 0F91 96DE 6E52 C29E
Received on Wednesday, 17 October 2007 21:37:25 UTC

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