When accounts are created (either thru user registration page or by Admin >> User Accounts screen), they are authorized in the portal where the accounts were created. Let's call the portal where the accounts were first created the HOME portal. Suppose you create a new portal and you want to use accounts already created in the HOME portal to access the new portal. Let's call the new portal the TARGET portal.
DNN isolates accounts by portal and by default the accounts are not shared among portals (ex. parent and childs). You do not want to create two account for the same user to access HOME and TARGET portals. How can the PortalSSO module help to allow a single-sign-on account to access all portals?
The PortalSSO module provides a custom login control that will allow the users to login to TARGET portals using the accounts already created in the HOME portal. The module settings allows you to specified the HOME and TARGET portal. Upon login, the module will validate accounts (username/password) from the HOME portal. If valid, the accounts will be authorized to access the TARGET portal. Figure 1 is a screen shot of the PortalSSO Settings page where you specify the HOME and TARGET portal.
What if you want the user to login to the HOME portal and then access the TARGET portals without login again? Figure 2 shows the PortalSSO "Authorize Users" screen in which the admin can authorize accounts in the HOME portal to access the TARGET portal. Once the users are authorized in the TARGET portal, you can assign the users to Security Roles in the TARGET portal and setup up their permissions to pages in the TARGET portal. This is a manual process.
What if you want to automatically share the accounts among all portals? This will require modification to DNN CORE. It can be done but not recommended (because future DNN upgrade will be difficult). Contact support@workcontrol.com if you must take this route.
Figure 1 - PortalSSO setting page
Figure 2 - PortalSSO Authorize Users screen
WorkControl Technical Support
Robert.