Posts Tagged ‘http persistence’

Dear Apache Software Foundation: FIX THE MSIE SSL KEEPALIVE SETTINGS!

June 6th, 2007 by smp | Comments | Filed in Software, Technology, Web Performance, WebPerformance.Org, Work

Dear Apache Software Foundation, and the developers of the Apache Web server:

I would like to thank you for developing a great product. I rely on it daily to host my own sites, and a large number of people on the Internet seem to share my love of this software.

However, it appears that you seem to want to maintain a simple flaw in your logic that continues to make me crazy. I am a Web performance analyst, and at least once a week I sigh, and shake my head whenever I stoop to use Microsoft Internet Explorer (MSIE) to visit secure sites.

I seems that in your SSL configurations, you continue to assume that ALL versions of MSIE can’t handle persistent connections under SSL/TLS.

Is this true? Is a bug initially caught in MSIE 5.x (5.0??) still valid for MSIE 6.0/7.0?

The short answer is: I don’t know.

It seems that no one in the Apache server team has bothered to go back and see if the current versions of MSIE — we are trying to track down the last three people use MSIE 5.x and help them — still share this problem.

In the meantime, can you change your SSL exclusion RegEx to something more, relevant for 2007?

Current RegEx:

SetEnvIf User-Agent ".*MSIE.*" nokeepalive
	ssl-unclean-shutdown
	downgrade-1.0 force-response-1.0

Relvant, updated REGEX:

SetEnvIf User-Agent ".*MSIE [1-5].*"
	nokeepalive ssl-unclean-shutdown
	downgrade-1.0 force-response-1.0
SetEnvIf User-Agent ".*MSIE [6-9].*"
	ssl-unclean-shutdown

Please? PLEASE? It’s so easy…and would solve so many performance problems…

Please?

Thank you.

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Web Performance: Some posts of interest

August 1st, 2006 by smp | Comments | Filed in Web Performance

This morning’s bounty of posts brought in two that will make you think.

First was Port80 Software’s comments on using the Cache-Control mechanism embedded in all browsers. This is interesting to read, as I have been trying to get companies to use this mechanism more intelligently for a number of years. I know that the Port80 team gets it, but it is always nice to have some outside validation of a position you have tried to evangelize for a long time.

The second was Tim O’Reilly’s post on Cal Henderson’s new book on Web scalability. While I am likely to purchase the book for a professional interest, I have one problem with Flickr’s current configuration: static.flickr.com does not use HTTP persistence, something I noted last week. This strikes me as weird.

It’s always good to see Web performance rear its head.

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