# Authentication Methods and Directory Synchronization

## Authentication methods

### OpenID Connect

* Microsoft Entra ID (formerly Azure Active Directory)
* AD FS 2016
* Auth0
* Okta
* Gardian
* Microsoft Identity Platform v2.0

### SAML v2.0

* Microsoft Entra ID (formerly Azure Active Directory)
* PingFederate
* Auth0
* Okta
* AD FS
* Generic providers

### Classic authentication methods

* Integrated Windows
* IIS Basic
* WorkflowGen HTTP Basic
* Custom HTTP Basic
* Form authentication

## Directory synchronization

* Microsoft Entra ID (formerly Azure Active Directory)<br>
* Active Directory (supports all releases of Windows Server 2016)<br>
* LDAP-compatible directory<br>
* Text files


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