The HTTP Server usually transfers data without compression by default. I searched in the Internet and found an article to teach me how to load and configure the compression module. (mod_deflate)
I use Debian Linux 4.0 with Apache 2.2.3 .
First, use switch user do to switch user to root (must in sudoer)
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root@taipei:/etc# sudo su |
Second, enable the Aapche2 module “deflate” to compress your transfer data.
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root@taipei:/etc# a2enmod deflate |
Third, config your /etc/apache2/mods-enable/deflate.conf . The DeflateCompressionLevel is from 0 to 9, accroding to the opinions from other’s blog, they said “level 6” is the best parameter with good compression rate and medium CPU usages.
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<ifModule mod_deflate.c> DeflateCompressionLevel 6 AddOutputFilterByType DEFLATE text/html text/plain text/xml application/x-httpd-php AddOutputFilter DEFLATE html htm xml php css js </ifModule> |
Then, restart your web server, everything is done.
The testing result is calculated by Port80 Compression Check . Now, we know the deference between the data size with zip compresstion or not.
P.S. You also can configure the /etc/php5/apache2/php.ini to enable the “ob_gzhandle”, or “zlib” (must load the zlib extention), but both of them can’t compress the static html pages, js, or css files.
refer: http://twntwn.info/blog/ajer001/archives/1889, thanks for ajer’s article.