my_rails_app.conf

   <VirtualHost *:80>
      ServerName www.yourhost.com
       # be sure to point to 'public'!
      DocumentRoot /somewhere/public
      <Directory /somewhere/public>
         # relax Apache security settings 
         # This step can achieved in a  number of different steps
         AllowOverride all
         # MultiViews must be turned off 
         Options -MultiViews
      </Directory>
   </VirtualHost>