[96] in 6.033-lab

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Results for web proxy

daemon@ATHENA.MIT.EDU (Kevin 'Bob' Fu)
Wed Apr 22 23:05:57 1998

To: 6.033-lab@MIT.EDU
Date: Wed, 22 Apr 1998 23:05:47 EDT
From: "Kevin 'Bob' Fu" <fubob@MIT.EDU>

I polished off the last web proxy.  There were some pretty good
proxies!  In the next few minutes, you will each receive a summary of
test results.  

Here are the test cases:

Transparency
	-GET request (http://www.mit.edu/)
	-POST request (http://www.mit.edu/comment to fubob@mit.edu)
	-HEAD request
	-Error 404
	-Reloading many times before web proxy response finishes
		Common error: web proxy could not handle early termination
	-Works on images/binary files
	-Passes If-Modified-Since headers transparently (tcpdump it)
		Common errors: Date parsing, forgetting IMS entirely

Web cache
	-Caches web pages on disk and/or memory 
		Common errors: Cache was not actually used
	-Does not fill my disk
	-Coherent, does not modify content of page, Visual check
	-Obeys Expires header
	-Does not returned cached pages when given Pragma:no-cache

Non-blocking
	-Many simultaneous requests
	-Hanging server does not cause web proxy to hang
	-Hanging client does not cause web proxy to hang
	-Non-responding server does not hang web proxy

--------
Kevin E. Fu (fubob@mit.edu)
PGP key: finger fubob@monk.mit.edu

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