symfony2 apache virtualhost configuration

project_sf2.conf

<VirtualHost *:80>
    ServerName project-sf2.dev
    ServerAlias www.project-sf2.dev
    DirectoryIndex app.php
    DocumentRoot "~/projects/project-sf2.dev/web"
    ErrorLog "~/logs/project-sf2_error.log"
    CustomLog "~/logs/project-sf2_access.log" common
    <Directory "~/projects/project-sf2.dev/web">
        Options Indexes FollowSymLinks
        AllowOverride None
        Order allow,deny
        Allow from all

        <IfModule mod_rewrite.c>
            Options -MultiViews
            RewriteEngine On
            RewriteCond %{REQUEST_FILENAME} !-f
            RewriteRule ^(.*)$ app.php [QSA,L]
        </IfModule>


    </Directory>

    KeepAlive            On
    MaxKeepAliveRequests 200
    KeepAliveTimeout     5

    AddOutputFilterByType DEFLATE text/css text/plain text/html application/xhtml+xml text/xml application/xml

    <IfModule mod_headers.c>
        Header append Vary User-Agent env=!dont-vary

        ExpiresActive On
        ExpiresDefault "now plus 1 week"
        ExpiresByType image/x-icon "now plus 1 month"
        ExpiresByType image/gif    "now plus 1 month"
        ExpiresByType image/png    "now plus 1 month"
        ExpiresByType image/jpeg   "now plus 1 month"
    </IfModule>
</VirtualHost>