Fichiers .htaccess ne fonctionnent pas ?

Bonjour,

J'ai récemment tenté d'activer le mode Rewrite sur mon VPS, hors celui-ci ne semble pas du tout fonctionner.
Contexte: J'ai un VPS qui tourne sous Debian 8 avec Apache2. (Mis à jour) Le fichier de configuration de mon site par défaut est: 000-default.conf
Voici le contenu du fichier .htaccess:

#	Mod_security can interfere with uploading of content such as attachments. If you
#	cannot attach files, remove the "#" from the lines below.
#<IfModule mod_security.c>
#	SecFilterEngine Off
#	SecFilterScanPOST Off
#</IfModule>

ErrorDocument 401 default
ErrorDocument 403 default
ErrorDocument 404 default
ErrorDocument 405 default
ErrorDocument 406 default
ErrorDocument 500 default
ErrorDocument 501 default
ErrorDocument 503 default

<IfModule mod_rewrite.c>
	AllowOverride All
	RewriteEngine On
	#	If you are having problems with the rewrite rules, remove the "#" from the
	#	line that begins "RewriteBase" below. You will also have to change the path
	#	of the rewrite to reflect the path to your XenForo installation.
	#RewriteBase /xenforo

	#	This line may be needed to enable WebDAV editing with PHP as a CGI.
	#RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]

	RewriteCond %{REQUEST_FILENAME} -f [OR]
	RewriteCond %{REQUEST_FILENAME} -l [OR]
	RewriteCond %{REQUEST_FILENAME} -d
	RewriteRule ^.*$ - [NC,L]
	RewriteRule ^(data/|js/|styles/|install/|favicon\.ico|crossdomain\.xml|robots\.txt) - [NC,L]
	RewriteRule ^.*$ index.php [NC,L]
</IfModule>

Le DocumentRoot est var/www/html et voici le fichier par défaut (000-default.conf):

<VirtualHost *:80>
	# The ServerName directive sets the request scheme, hostname and port that
	# the server uses to identify itself. This is used when creating
	# redirection URLs. In the context of virtual hosts, the ServerName
	# specifies what hostname must appear in the request's Host: header to
	# match this virtual host. For the default virtual host (this file) this
	# value is not decisive as it is used as a last resort host regardless.
	# However, you must set it for any further virtual host explicitly.
	#ServerName www.example.com

	ServerAdmin webmaster@localhost
	DocumentRoot /var/www/html

	# Available loglevels: trace8, ..., trace1, debug, info, notice, warn,
	# error, crit, alert, emerg.
	# It is also possible to configure the loglevel for particular
	# modules, e.g.
	#LogLevel info ssl:warn

	ErrorLog ${APACHE_LOG_DIR}/error.log
	CustomLog ${APACHE_LOG_DIR}/access.log combined

	# For most configuration files from conf-available/, which are
	# enabled or disabled at a global level, it is possible to
	# include a line for only one particular virtual host. For example the
	# following line enables the CGI configuration for this host only
	# after it has been globally disabled with "a2disconf".
	#Include conf-available/serve-cgi-bin.conf
	
	<Directory "/var/www/html">
    	Options Indexes FollowSymLinks
		AllowOverride All
  		Allow from All
	</Directory>

	
</VirtualHost>

# vim: syntax=apache ts=4 sw=4 sts=4 sr noet