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Date:	Mon, 5 Aug 2002 21:19:32 -0700 (PDT)
From:	"John D. Hardin" <jhardin AT impsec DOT org>
To:	cygwin AT cygwin DOT com
Subject:	Bug (or misfeature) report: cygwin setup behing caching proxy
In-Reply-To:	<200207310352.UAA10142@hq.impsec.org>
Message-ID:	<Pine.LNX.4.10.10208052117480.28323-100000@gypsy.impsec.org>
MIME-Version:	1.0

I've been setting up cygwin on some local desktops here, and
was wondering why I was getting slow downloads even though I'm behind
a Squid caching proxy...

As it turns out, perusal of the squid log indicates that the setup
program makes its requests in such a way that the proxy cache is
bypassed and the files are directly fetched:

1027704003.367   3692 TCP_CLIENT_REFRESH_MISS/200 34258 GET ftp://ftp.nas.nasa.gov/mirrors/cygwin.com/pub/cygwin/release/sed/sed-3.02-1.tar.gz - DIRECT/198.9.9.17 application/x-tar
1027704010.780   7407 TCP_CLIENT_REFRESH_MISS/200 456543 GET ftp://ftp.nas.nasa.gov/mirrors/cygwin.com/pub/cygwin/release/sh-utils/sh-utils-2.0-2.tar.gz - DIRECT/198.9.9.17 application/x-tar
1027704016.212   5411 TCP_CLIENT_REFRESH_MISS/200 334645 GET ftp://ftp.nas.nasa.gov/mirrors/cygwin.com/pub/cygwin/release/tar/tar-1.13.19-1.tar.gz - DIRECT/198.9.9.17 application/x-tar

...etc.

Quoting from http://www.squid-cache.org/Doc/FAQ/FAQ-6.html :
-------------------------
TCP_CLIENT_REFRESH_MISS

The client issued a "no-cache" pragma, or some analogous cache control
command along with the request. Thus, the cache has to refetch the
object. 
-------------------------

Is there some reason the setup program does this? I'd like to get the
files from my proxy server and ease the load on the public mirror if
possible.

Thanks!

--
 John Hardin KA7OHZ    ICQ#15735746    http://www.impsec.org/~jhardin/
 jhardin AT impsec DOT org                        pgpk -a jhardin AT impsec DOT org
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