SSO need to enabled in app1 and app2. user is authenticated to access app1 and tries to access app2. app2 application uses request.getRemoterUser() method to fetch user id . ( I guess , it is basic authentication where it is supposed that user has been autenticated alrady while fetching user id)
Is there any configuration in OPENIG so that while loggin the user into app2 (without login) , it can pass this remote user id so that application can fetch the same.