Apache Gzip Compression

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1. Cấu hình apache

chỉnh sửa file httpd.conf
thêm dòng sau vào file

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

Restart Apache HTTP Server!

sửa file  .htaccess thêm đoạn cấu hình sau:


#Gzip on Apache before send to browser
<IfModule mod_deflate.c>
  # Compress HTML, CSS, JavaScript, Text, XML and fonts
  AddOutputFilterByType DEFLATE application/javascript
  AddOutputFilterByType DEFLATE application/rss+xml
  AddOutputFilterByType DEFLATE application/vnd.ms-fontobject
  AddOutputFilterByType DEFLATE application/x-font
  AddOutputFilterByType DEFLATE application/x-font-opentype
  AddOutputFilterByType DEFLATE application/x-font-otf
  AddOutputFilterByType DEFLATE application/x-font-truetype
  AddOutputFilterByType DEFLATE application/x-font-ttf
  AddOutputFilterByType DEFLATE application/x-javascript
  AddOutputFilterByType DEFLATE application/xhtml+xml
  AddOutputFilterByType DEFLATE application/xml
  AddOutputFilterByType DEFLATE font/opentype
  AddOutputFilterByType DEFLATE font/otf
  AddOutputFilterByType DEFLATE font/ttf
  AddOutputFilterByType DEFLATE image/svg+xml
  AddOutputFilterByType DEFLATE image/x-icon
  AddOutputFilterByType DEFLATE text/css
  AddOutputFilterByType DEFLATE text/html
  AddOutputFilterByType DEFLATE text/javascript
  AddOutputFilterByType DEFLATE text/plain
  AddOutputFilterByType DEFLATE text/xml
  # Remove browser bugs (only needed for really old browsers)
  BrowserMatch ^Mozilla/4 gzip-only-text/html
  BrowserMatch ^Mozilla/4\.0[678] no-gzip
  BrowserMatch \bMSIE !no-gzip !gzip-only-text/html
  Header append Vary User-Agent
</IfModule>

#Create Cache to browser dont request to server with max-age
# BEGIN Expire headers
<ifModule mod_expires.c>
    ExpiresActive On
    ExpiresDefault "access plus 5 seconds"
    ExpiresByType image/x-icon "access plus 2592000 seconds"
    ExpiresByType image/jpeg "access plus 2592000 seconds"
    ExpiresByType image/png "access plus 2592000 seconds"
    ExpiresByType image/gif "access plus 2592000 seconds"
    ExpiresByType application/x-shockwave-flash "access plus 2592000 seconds"
    ExpiresByType text/css "access plus 604800 seconds"
    ExpiresByType text/javascript "access plus 216000 seconds"
    ExpiresByType application/javascript "access plus 216000 seconds"
    ExpiresByType application/x-javascript "access plus 216000 seconds"
    ExpiresByType text/html "access plus 600 seconds"
    ExpiresByType application/xhtml+xml "access plus 600 seconds"
</ifModule>
# END Expire headers
# BEGIN Cache-Control Headers
<ifModule mod_headers.c>
    <filesMatch "\.(ico|jpe?g|png|gif|swf)$">
        Header set Cache-Control "public"
    </filesMatch>
    <filesMatch "\.(css)$">
        Header set Cache-Control "public"
    </filesMatch>
    <filesMatch "\.(js)$">
        Header set Cache-Control "private"
    </filesMatch>
    <filesMatch "\.(x?html?|php)$">
        Header set Cache-Control "private, must-revalidate"
    </filesMatch>
</ifModule>
# END Cache-Control Headers

### HEADER CACHING
# /htaccess/speed-up-sites-with-htaccess-caching.html
<FilesMatch "\.(flv|gif|jpg|jpeg|png|ico)$">
Header set Cache-Control "max-age=2592000"
</FilesMatch>
<FilesMatch "\.(js|css|pdf|swf)$">
Header set Cache-Control "max-age=604800"
</FilesMatch>
<FilesMatch "\.(html|htm|txt)$">
Header set Cache-Control "max-age=600"
</FilesMatch>
<FilesMatch "\.(pl|php|cgi|spl|scgi|fcgi)$">
Header unset Cache-Control
</FilesMatch>

#End Cached

# BEGIN Turn ETags Off
<IfModule mod_headers.c>
  Header unset ETag
</IfModule>
FileETag None
# END Turn ETags Off

# BEGIN Remove Last-Modified Header
<IfModule mod_headers.c>
  Header unset Last-Modified
</IfModule>
# END Remove Last-Modified Header

subdomain

Khi muốn thêm sub domain mà không thực hiện trỏ ip hoặc cấu hình dns từ các dịch vụ cung cấp dns thì thực hiện như sau:
trong file httpd.conf
<VirtualHost *:80>
     DocumentRoot "/var/www/html/abc.com"
     ServerName abc.com
     ServerAlias *.abc.com
         DirectoryIndex index.php
        <Directory "/var/www/html/abc.com">
        Options All
        AllowOverride All
        Allow from all
    </Directory>
</VirtualHost>

hai dòng chúng ta cần chú ý là
   ServerName abc.com
   ServerAlias *.abc.com

thì như vậy url lúc này sẽ là www.abc.com , www.123.abc.com, .....

Ngoài ra muốn loại bỏ chữ www trên url chúng ta sửa file .htaccess
thêm vào dòng sau:

RewriteCond %{HTTP_HOST} ^www\.(.*)$ [NC]
RewriteRule ^(.*)$ http://%1%{REQUEST_URI} [R=301,QSA,NC,L]

file .htaccess sau khi thêm 

<IfModule mod_rewrite.c>
   RewriteEngine on        
   RewriteCond %{HTTP_HOST} ^www\.(.*)$ [NC]
   RewriteRule ^(.*)$ http://%1%{REQUEST_URI} [R=301,QSA,NC,L] 

   RewriteRule  ^$ public/    [L]
   RewriteRule  (.*) public/$1 [L]
</IfModule>