RE: Using HTTP proxies with iSCSI

[Black_David@emc.com]

> Just a note for future reference (not meant to spark discussion)...
> 
> HTTP has a way of de facto standard way of setting up TCP connections
through
> HTTP proxies. See the CONNECT verb in section 9.9 of RFC 2616 and
> the expired draft at:
> 
>
http://www.alternic.org/drafts/drafts-l-m/draft-luotonen-web-proxy-tunneling
-01.html
> 
> This mechanism could be used for iSCSI.
> 
> This mechanism is in-band, in that it occurs on the same TCP connection,
> yet out-of-band, since it is iSCSI independent.

Almost, but not quite.  HTTP transits proxies by using absolute URLs that
contain the DNS hostname; the current direction is towards using absolute
URLs for everything, but they were originally only used for proxies.
CONNECT was invented for HTTPS (i.e., SSL/TLS) proxies where the hostname
is/would be encrypted, and proxy participation in the security relationship
between the browser and web server (which would allow the proxy to decrypt
the hostname) is undesirable.

--David

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David L. Black, Senior Technologist
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