Apache mod_deflate module Installation and configuration steps detailed

Recently moved the blog from the virtual host to the VPS, a natural toss. It is estimated that around this process, writing three or four blog posts is not a dream.
This is the first, server-side compression-the server before the content of the content to do gzip compression to reduce the size of the file transmitted-according to Google, can be reduced by 90%, but this is not the focus, the focus is server-side does not open gzip compression, Google pagespeed The test will be deducted-I personally care about the score.
Under Apache, the compression function is controlled by the Mod_deflate module.
Installation

My VPS system is loaded with OpenSUSE 13.1 64-bit system, Apache version is 2.4. First look at whether the Mod_deflate module has been installed in the system, I know there are two ways:
The current user executes the command httpd2-m, and the output is roughly as follows:

The code is as follows

Copy Code

Chenxsan@zfanw.com:~> httpd2-m [Fri Oct 31 13:13:59.278203 2014] [So:warn] [PID 9292] Ah01574:module Deflate_module is already loaded, skipping Loaded Modules: Core_module (Static) Access_compat_module (Static) So_module (Static) Http_module (Static) Mpm_prefork_module (Static) Unixd_module (Static) Systemd_module (Static) Actions_module (Shared) Alias_module (Shared) Auth_basic_module (Shared) Authn_file_module (Shared) Authz_host_module (Shared) Authz_groupfile_module (Shared) Authz_user_module (Shared) Autoindex_module (Shared) Cgi_module (Shared) Dir_module (Shared) Env_module (Shared) Expires_module (Shared) Include_module (Shared) Log_config_module (Shared) Mime_module (Shared) Negotiation_module (Shared) Setenvif_module (Shared) Ssl_module (Shared) Userdir_module (Shared) Reqtimeout_module (Shared) Authn_core_module (Shared) Authz_core_module (Shared) Php5_module (Shared) Rewrite_module (Shared) Deflate_module (Shared) To view the contents of the/etc/sysconfig/apache2 file, you can either open the file directly or use the grep command: grep "apache_modules="/etc/sysconfig/apache2 The results are generally as follows: apache_modules= "actions alias Auth_basic authn_file authz_host authz_groupfile authz_user autoindex CGI dir env expires in Log_config MIME negotiation setenvif SSL Userdir reqtimeout authn_core authz_core mod-userdir php5 mod_rewrite mod_d clude Eflate deflate "

The result I have shown here is that the Mod_deflate module has been installed.
If not, use A2enmod to enable:

The code is as follows	Copy Code
sudo a2enmod deflate

Wait, why didn't you say the installation goes directly into the enabling phase? Because the Mod_deflate module has been loaded with Apache when it is installed, you can skip the installation step.
After you enable the Mod_deflate module, you need to restart the Apache server:

The code is as follows	Copy Code
sudo rcapache2 restart

Enabled

Mentioned above.
Configuration

When you enable the Mod_deflate module, you are ready to configure it.
Can follow the instructions of OpenSUSE step-by-step, can also be rough direct point, modify the/etc/apache2/httpd.conf file, add the following code at the end of the file:

The code is as follows	Copy Code
Setoutputfilter DEFLATE Setenvifnocase request_uri\. (?: gif|jpe?g|png) $\ No-gzip dont-vary Setenvifnocase request_uri\ \. (?: exe|t?gz|zip|bz2|sit|rar|7z) $\ No-gzip dont-vary Setenvifnocase request_uri\.pdf$ No-gzip dont-vary Browsermatch ^MOZILLA/4 gzip-only-text/html Browsermatch ^mozilla/4\.0[678] No-gzip Browsermatch\bmsie!no-gzip!gzip-only-text/html

Or you can consider the configuration provided by H5BP.
And then restart Apache:

The code is as follows	Copy Code
sudo rcapache2 restart

Run another trip pagespeed, will not mention the server compression-Congratulations, you have compressed 90% of the transfer file size, saving a lot of bandwidth and time for users.