I recently installed Portal 10.3 and it is now configured with Integrated Windows Authentication. I also have our ArcGIS Server (10.3) configured with IWA, and it is not federated with Portal.
I was testing registering a service from our ArcGIS Server with Portal. Because everything uses IWA and I am signed-on with my domain account on my desktop I was not prompted for credentials for the service that I registered. However I want to make sure that the credentials are stored with the service for when it is used on mobile devices.
Is there a way around this besides registering services on a computer outside our domain (not feasible...)? Or does Portal automatically store credentials when a service uses IWA? Thanks!