authelia/docs/features/first-factor.md

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default	First Factor	Features	1

First Factor

2-Factor authentication is a method in which a user is granted access by presenting two pieces of evidence that she is who she claims to be.

Authelia requires usual username and password as a first factor.

IMPORTANT: This is the only method available as first factor.

Authelia supports several kind of users databases:

• An LDAP server like OpenLDAP or OpenAM.
• An Active Directory.
• A YAML file