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RE: NEW ISSUE: EPR comparison rule doesn't support Web services gateways/routers

From: Vikas Deolaliker <vikasd@yahoo.com>
Date: Fri, 28 Jan 2005 08:25:02 -0800
To: "'Rich Salz'" <rsalz@datapower.com>, "'Mark Baker'" <distobj@acm.org>
Cc: <public-ws-addressing@w3.org>
Message-ID: <E1CuYwD-000402-80@frink.w3.org>




I hope we don't bring the NAT and it's related confusion in the world of web
services routing. The same is true for demultiplexing based on semantics
instead of syntax. 

Allowing ref. params based destination finding will only create a whole set
of non-interoperable gateways which may be good for vendors but a mess from
deployment perspective. 

Vikas

-----Original Message-----
From: public-ws-addressing-request@w3.org
[mailto:public-ws-addressing-request@w3.org] On Behalf Of Rich Salz
Sent: Tuesday, January 25, 2005 6:59 PM
To: Mark Baker
Cc: public-ws-addressing@w3.org
Subject: Re: NEW ISSUE: EPR comparison rule doesn't support Web services
gateways/routers


> Specifically, if the
> message was really intended to be sent to somewhere else down the line,
> then that's where it should be addressed.  If this isn't a gateway
> scenario, and instead an intermediary scenario, then routing could be
> used to route to the intended destination via the intermediary.

Some other ways to think of it are service virtualization, demultiplexing,
or (my favorite) service-oriented NAT.  For all intents and purposes, a
single host, and perhaps a single URL (or maybe URL prefix) is exposed to
the outside world, and the internal servers and applications are never
directly exposed.

Architecturally, it kinda sucks (although it helps create a market for our
producdts :).  Unfortunately, the script kiddies and criminals have done a
lot to wreck the end-to-end concept.  Even REST suffers.
-- 
Rich Salz                  Chief Security Architect
DataPower Technology       http://www.datapower.com
XS40 XML Security Gateway  http://www.datapower.com/products/xs40.html
XML Security Overview      http://www.datapower.com/xmldev/xmlsecurity.html
Received on Friday, 28 January 2005 16:25:37 GMT

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