django/docs/ref/authbackends.txt

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.. _ref-authentication-backends:
==========================================
Built-in authentication backends reference
==========================================
.. module:: django.contrib.auth.backends
:synopsis: Django's built-in authentication backend classes.
This document details the authentication backends that come with Django. For
information on how how to use them and how to write your own authentication
backends, see the :ref:`Other authentication sources section
<authentication-backends>` of the :ref:`User authentication guide
<topics-auth>`.
Available authentication backends
=================================
The following backends are available in :mod:`django.contrib.auth.backends`:
.. class:: ModelBackend
This is the default authentication backend used by Django. It
authenticates using usernames and passwords stored in the
:class:`~django.contrib.auth.models.User` model.
.. class:: RemoteUserBackend
.. versionadded:: 1.1
Use this backend to take advantage of external-to-Django-handled
authentication. It authenticates using usernames passed in
:attr:`request.META['REMOTE_USER'] <django.http.HttpRequest.META>`. See
the :ref:`Authenticating against REMOTE_USER <howto-auth-remote-user>`
documentation.