{{tag>en en:linux en:server en:web}}
====== Web Server (Apache) ======
This page describes the installation of Apache and PHP which is often required for various services.

===== Installation =====
With Debian install the following packages :
  * apache2
  * PHP5

Apache will be installed in prefork mode because the threaded mode is not supported by php.


===== Configuration principle =====
The apache configuration is defined into the file ///etc/apache2/apache2.conf//. This file includes other files dynamically :
  * /etc/apache2/apache2.conf
  * /etc/apache2/httpd.conf
  * /etc/apache2/conf.d/
  * /etc/apache2/sites-enables
  * /etc/apache2/mods-enables

The standard configuration is done by creating one or more files located in ///etc/apache2/sites-available/// and enabling them.

To enable of disable a file, use the following commands :
  * a2ensite
  * a2dissite

For modules, the commands are :
  * a2enmod
  * a2dismod

For exemple, to disable the default configuration :
<code>
bender:/etc/apache2/sites-available# a2dissite default
Site default disabled; run /etc/init.d/apache2 reload to fully disable.
bender:/etc/apache2/sites-available#
</code>

===== Advanced configuration =====
To see details of apache configuration, please check the following pages :
  * [[en:linux:serveur_web:config]]
  * [[en:linux:serveur_web:ssl]]
  * [[en:linux:serveur_web:auth]]


===== Backup =====
  * /etc/apache2/
  * /var/log/apache2/
  * /etc/logrotate.d/apache2
  * /etc/php5/apache2/php.ini
  * /var/www/  


===== Links =====
  * http://www.apache.org
  * http://httpd.apache.org/docs/2.2/
  * http://httpd.apache.org/docs/2.2/mod/mod_dbd.html
  * http://httpd.apache.org/docs/2.2/mod/mod_authn_dbd.html
  * http://apache.webthing.com/database/