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From "Jeffrey Janner" <>
Subject RE: Compression and SSL
Date Mon, 02 Nov 2009 23:37:03 GMT
André -
Thanks for the nice answer.
Precisely what I was looking for to make a decision.
I'll try turning it on for one customer tonight and see if we really improve things.

-----Original Message-----
From: André Warnier [] 
Sent: Monday, November 02, 2009 12:59 PM
To: Tomcat Users List
Subject: Re: Compression and SSL

Jeffrey Janner wrote:
> OK, another newbie-ish question here.
Then a dummy-ish answer may be sufficient :

> Will setting the HTTPS connector "compression=on" actually compress the
> data for HTTPS?

It will compress all data it would compress it it wasn't HTTPS.

> Does it compress before or after applying the encryption?
HTTPS is at a lower level, at the connection level.
I'm not even sure that Tomcat is really involved.  As far as responses 
are concerned, Tomcat probably just hands them over to the socket (in 
clear, normal), and it is the socket which does the SSL encryption.

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