让你的apache支持ETags, Gzip和Expires Header

zcl_ccc

　　Here i came up with list of things to be done for

• Gziping the CSS/JS, image and flash files
  
• Removing Etags from CSS/JS and Image/flash files.
  
• Adding expires header to CSS/JS and image/flash files.
  

　　First, Go to your apache’s httpd.conf file
I my case its “C:\xampp\apache\conf\httpd.conf”
　　The lines beginning with # indicate that these are comments
Remove the comments for these below mentioned lines



LoadModule deflate_module modules/mod_deflate.so
LoadModule expires_module modules/mod_expires.so
LoadModule headers_module modules/mod_headers.so

　　Add the below thing to remove the ETags. This can be added at the end



FileETag None

　　To Add expires header to all the files that are requested from the server



ExpiresActive On
ExpiresDefault "access plus 300 seconds"

Options FollowSymLinks MultiViews
AllowOverride All
Order allow,deny
Allow from all
ExpiresByType text/html "access plus 1 day"
ExpiresByType text/css "access plus 1 day"
ExpiresByType text/javascript "access plus 1 day"
ExpiresByType image/gif "access plus 1 day"
ExpiresByType image/jpg "access plus 1 day"
ExpiresByType image/png "access plus 1 day"
ExpiresByType application/x-shockwave-flash "access plus 1 day"


　　Note: Here “myProject” is the folder where
my web pages are present. i.e “C:\xampp\htdocs\myProject”. Where
“webResources” is the directory where my css, js, image, flash files are
present. For all these files I am adding expires header of one day.
Means these files can be can be cached for the entire day in the local
browser. In other words these files are not changed at least for one
day.
　　To Gzip the CSS and JS files that are present in the “webResources” folder




# 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
# NOTE: Due to a bug in mod_setenvif up to Apache 2.0.48
# the above regex won't work. You can use the following
# workaround to get the desired effect:
BrowserMatch \bMSI[E] !no-gzip !gzip-only-text/html
# Don't compress images
SetEnvIfNoCase Request_URI \
\.(?:gif|jpe?g|png)$ no-gzip dont-vary
# Make sure proxies don't deliver the wrong content
Header append Vary User-Agent env=!dont-vary


　　
　　原文地址：http://kuppalli.wordpress.com/2009/07/14/apache-configuration-for-etags-gzip-and-expires-header/