authelia/docs/features/single-factor.md

layout	title	parent	nav_order
default	Single Factor	Features	3

Single Factor

Authelia supports single factor authentication to let applications send authenticated requests to other applications.

Single or two-factor authentication can be configured per resource of an application for flexibility.

For instance, you can configure Authelia to grant access to all resources matching app1.example.com/api/(.*) with only a single factor and all resources matching app1.example.com/admin with two factors.

To know more about the configuration of the feature, please visit the documentation about the configuration.

Proxy-Authorization header

Authelia reads credentials from the header Proxy-Authorization instead of the usual Authorization header. This is because in some circumstances both Authelia and the application could require authentication in order to provide specific authorizations at the level of the application.