Apache - přesměrování v případě, že adresa neexistuje

<VirtualHost *:80>
    ServerAdmin admin@server.l
    DocumentRoot /var/www
    ErrorLog ${APACHE_LOG_DIR}/error.log
    # Possible values include: debug, info, notice, warn, error, crit,
    # alert, emerg.
    LogLevel warn
    CustomLog ${APACHE_LOG_DIR}/access.log combined

    RewriteEngine On
        AddDefaultCharset UTF-8
        RewriteCond %{REQUEST_URI} !^/icons/
        RewriteCond %{ENV:REDIRECT_STATUS} =""
        RewriteCond %{HTTP_HOST} ^(?:www\.)?(?:([^.]+)\.)?([^.]+\.[^.]+)$ [NC]
        RewriteRule ^(.*)$ %2/%1 [L]

    <Directory "/">
        Options FollowSymLinks
        AllowOverride All
        AddDefaultCharset UTF-8
    </Directory>

    <Directory "/var/www">
        Options Indexes FollowSymLinks MultiViews
        AllowOverride None
        Order allow,deny
        Allow from all
    </Directory>
</VirtualHost>