Restrict multiple logins for the same user. There are business cases when users are not allowed to login simultaneously, because there are auditing process that are going to log operations for the same user at different workstations, that can cause confusion in the auditing process.
Federation - SAML SSO.
The system must have an option to not allow simultaneous login.
The system should not allow the second login attempt. Thrown an exception with detailed message.
The system, should allow the second login, but must invalidate the first login. This should be an option.
TBD
Implement a login module that checks the simultaneous login and proceed as described in the requirements section.
TBD
TBD