External authentication is enabled / disabled via setting various Site Setting entries.
To turn off Facebook and Google authentication methods:
- Open the portal
- Search and open the entry '
Authentication/Registration/ExternalLoginEnabled'
- Set the Value to 'False'
Setting Authentication/Registration/AzureADLoginEnabled to False 'should' turn off all non-local authentication. However, it does not remove Azure AD authentication.
To turn off Azure AD authentication:
- Search open the entry 'Authentication/Registration/AzureADLoginEnabled'
- Set the Value to 'False'