Documentation for 5.0/5.1 on https://confluence.ez.no/display/EZP/Virtual+host+example

httpd.conf

         # Give direct access to robots.txt for use by crawlers (Google,
         # Bing, Spammers..)
         RewriteRule ^/robots\.txt - [L]
  
         # Platform for Privacy Preferences Project ( P3P ) related files
         # for Internet Explorer
         # More info here : http://en.wikipedia.org/wiki/P3p
         RewriteRule ^/w3c/p3p\.xml - [L]
  
         # Uncomment the following lines when using popup style debug in legacy
         #RewriteRule ^/var/([^/]+/)?cache/debug\.html.* - [L]
  
         # Following rule is needed to correctly display assets from eZ Publish5 / Symfony bundles
         RewriteRule ^/bundles/ - [L]
+
+        # For dev/debug environment, you might want to use the 'development' front controller.
+        # Uncomment the 'RewriteRule' line below to use it.
+        # The following example 'RewriteCond' lines can be used in combination to conditionally use it.
+        #RewriteCond %{HTTP_HOST} = dev.example.com [OR]
+        #RewriteCond %{HTTP_HOST} = dev.admin.example.com
+        #RewriteRule .* /index_dev.php [L]
+
+        # Redirect all requests to the 'production' front controller
         RewriteRule .* /index.php
     </IfModule>
  
     DocumentRoot /var/www/example/web
     ServerName www.example.com
     ServerAlias admin.example.com
 </VirtualHost>