基于httpd的mod_deflate模块

1、作用

节约带宽，额外消耗CPU；部分老浏览器不支持；

压缩适于压缩的资源，例如文本文件；

2、涉及模块

LoadModule deflate_module modules/mod_deflate.so（CentOS6默认启用）

3、配置（httpd-2.2）

~]# vim /etc/httpd/conf.d/mod_deflate.conf

输入以下代码

SetOutputFilter DEFLATE# 设置压缩过滤器，指明哪些类型适合压缩# mod_deflate configuration# Restrict compression to these MIME typesAddOutputFilterByType DEFLATE text/plainAddOutputFilterByType DEFLATE text/htmlAddOutputFilterByType DEFLATE application/xhtml+xmlAddOutputFilterByType DEFLATE text/xmlAddOutputFilterByType DEFLATE application/xmlAddOutputFilterByType DEFLATE application/x-javascriptAddOutputFilterByType DEFLATE text/javascriptAddOutputFilterByType DEFLATE text/css# Level of compression(Highest 9 - Lowest 1)DeflateCompressionLevel 6# 压缩级别根据CPU消耗和带宽来决定,6为默认# Netscape 4.x has some problems...BrowserMatch ^Mozilla/4 gzip-only-text/html# Netscape 4.06-4.08 have some more problemsBrowserMatch ^Mozilla/4\.0[678] no-gzip# MSIE masquerades as Netscape, but it is fineBrowserMatch \bMSIE !no-gzip !gzip-only-text/html

~]# httpd -t~]# service httpd reload

4、确认压缩效果

配置前

配置后