http://www.wikio.fr WebSphere And Tivoli Tricks: Enable GZIP compression on HTTP server to improve response time

Friday, May 6, 2011

Enable GZIP compression on HTTP server to improve response time

Enabling GZIP compression on the HTTP Server serving Lotus Quickr resources reduces the amount of content that has to be downloaded and improves response times. To do so, use these steps:
1. Stop the Apache server (on your Web Server)

2. Edit the httpd.conf file

3. Append the following to the end of the file:

# compress everything but images
LoadModule deflate_module modules/mod_deflate.so
DeflateFilterNote Input instream
DeflateFilterNote Output outstream
DeflateFilterNote Ratio ratio

# log some info
#LogFormat '"%r" %{outstream}n/%{instream}n (%{ratio}n%%)' deflate
#CustomLog logs/deflate_log deflate

# Insert filter
SetOutputFilter DEFLATE

# Netscape 4.x has some problems...
BrowserMatch ^Mozilla/4 gzip-only-text/html
# Netscape 4.06-4.08 have some more problems
BrowserMatch ^Mozilla/4\.0[678] no-gzip
# MSIE masquerades as Netscape, but it is fine
BrowserMatch \bMSIE !no-gzip !gzip-only-text/html

# Don't compress images SetEnvIfNoCase Request_URI \\.(?:gif|jpe?g|png|exe)$ no-gzip dont-vary

4. Save the file

5. Restart the Apache server

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