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 administrators 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.	Dependant on the identity provider.{% endif %}
LDAP	Allows integration with your company directory service for authentication.	Supported and managed on the {% data variables.product.prodname_ghe_server %} appliance. Organization administrators 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 %}