Created a github [issue](https://github.com/GluuFederation/docs/issues/84) to update doc.
'oxTrust' is the codename of Gluu Server GUI.
Whenever you prefer some method for 'oxTrust' ( say, oxPush2 ) and another one for 'oxAuth' ( say, default ) then here is the scenario:
1. User who is trying to log into Gluu Server admin panel, he/she will get 2FA with oxPush2.
2. General users who will just do the SSO with Gluu Server, won't get oxPush2 or 2FA but will move through Default.
'Internal' is a custom method for authentication. You can check the script in custom script section.