轉CentOS下修改httpd.conf開啓gzip壓縮傳輸

修改httpd.conf開啓gzip壓縮傳輸，本文在CentOS 5.5下配置

下面是具體的步驟

1. 首頁查看一下mod_deflate、mod_headers兩個模塊是否開啓,

cat /etc/httpd/conf/httpd.conf | grep mod_deflate
#輸出LoadModule deflate_module modules/mod_deflate.so
cat /etc/httpd/conf/httpd.conf | grep mod_headers
#輸出LoadModule headers_module modules/mod_headers.so

如果列出文字前都帶#號，修改httpd.conf去除

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

2. 在httpd.conf末尾加入下面文字,並保存

<IfModule mod_deflate.c>
    SetOutputFilter DEFLATE
    SetEnvIfNoCase Request_URI .(?:gif|jpe?g|png)$ no-gzip dont-vary
    SetEnvIfNoCase Request_URI .(?:exe|t?gz|zip|bz2|sit|rar)$ no-gzip dont-vary
    SetEnvIfNoCase Request_URI .(?:pdf|mov|avi|mp3|mp4|rm)$ no-gzip dont-vary

    AddOutputFilterByType DEFLATE text/*
    AddOutputFilterByType DEFLATE application/ms* application/vnd* application/postscript application/javascript application/x-javascript
</IfModule>

註解：

SetOutputFilter DEFLATE

設置壓縮等級，可設置爲1到9.數字越大壓縮比例越高，相應cpu也越累

SetEnvIfNoCase Request_URI .(?:gif|jpe?g|png)$ no-gzip dont-vary
SetEnvIfNoCase Request_URI .(?:exe|t?gz|zip|bz2|sit|rar)$ no-gzip dont-vary
SetEnvIfNoCase Request_URI .(?:pdf|mov|avi|mp3|mp4|rm)$ no-gzip dont-vary

以上三行分別設置對圖片、壓縮文件、視頻文件等格式的文件不使用gzip壓縮

AddOutputFilterByType DEFLATE text/* 

對文字啓用壓縮

AddOutputFilterByType DEFLATE application/ms* application/vnd* application/postscript application/javascript application/x-javascript

對js啓用壓縮

3. 重啓httpd
service httpd restart