docs/data/reusables/two_fa/auth_methods_2fa.md

{% ifversion ghes %}

Authentication methods that support 2FA

Authentication Method	Description	Two-factor authentication support
Built-in	Authentication is performed against personal accounts that are stored on the {% data variables.product.prodname_ghe_server %} appliance.	Supported and managed on the {% data variables.product.prodname_ghe_server %} appliance. Organization owners can require 2FA to be enabled for members of the organization.
Built-in authentication with an identity provider	Authentication is performed against accounts that are stored on the identity provider.	Dependent on the identity provider.
LDAP	Allows integration with your company directory service for authentication.	Supported and managed on the {% data variables.product.prodname_ghe_server %} appliance. Organization owners can require 2FA to be enabled for members of the organization.
SAML	Authentication is performed on an external identity provider.	{% data reusables.two_fa.2fa_not_supported_with_saml_and_cas %}
CAS	Single sign-on service is provided by an external server.	{% data reusables.two_fa.2fa_not_supported_with_saml_and_cas %}

{% endif %}