Policy Application

The Policy Application runs on Photon to send the crossdomain.xml. Webplayer platforms like Unity Webplayer, Flash and Silverlight request authorization before they contact a server.

The actual file sent in response to a policy request is loaded from: deploy\Policy\Policy.Application\assets. There is a special file for Silverlight and one for Unity and Flash.

Configuration

The default setup from the SDK will start the Policy Application. The assemblies of which are in the deploy\Policy folder and the configuration to load it is:

    
        <Applications>
	        <!-- [other Application nodes] -->

	        <!-- Flash & Silverlight Policy Server -->
	        <Application
		        Name="Policy"
		        BaseDirectory="Policy\Policy.Application"
		        Assembly="Policy.Application"
		        Type="Exitgames.Realtime.Policy.Application.Policy">
	        </Application>
        </Applications>
    

Ports

Policy requests are usually done behind the scenes on TCP Port 843 and 943 (Silverlight), so these two have to be open as well. This includes Windows Security settings, other Firewalls in software and hardware. If you host Photon in a Cloud, check the Security settings of that as well. Amazon's EC2 has Security Groups to restrict access to ports.