How do you enable an oauth2 endpoint with ArcGIS Server with out Portal?
This documentation (Authentication—ArcGIS REST API | ArcGIS for Developers) states
Note:
Support for OAuth 2.0 was added to ArcGIS Server and Portal for ArcGIS at version 10.3. It is not available if using Portal for ArcGIS version 10.2 and earlier."
But I can't seem to find any other info on how to configure Oauth 2 with ArcGIS Server.
Is this a mistake?