---
title: Authentication
intro: You can configure how users sign into {% data variables.product.product_name %}.
redirect_from:
  - /enterprise/admin/authentication
versions:
  enterprise-server: '*'
  github-ae: '*'
---


### Table of Contents

{% topic_link_in_list /authenticating-users-for-your-github-enterprise-server-instance %}
    {% link_in_list /using-built-in-authentication %}
    {% link_in_list /disabling-unauthenticated-sign-ups %}
    {% link_in_list /using-cas %}
    {% link_in_list /using-saml %}
    {% link_in_list /using-ldap %}
    {% link_in_list /allowing-built-in-authentication-for-users-outside-your-identity-provider %}
    {% link_in_list /changing-authentication-methods %}
{% topic_link_in_list /managing-identity-and-access-for-your-enterprise %}
    {% link_in_list /about-identity-and-access-management-for-your-enterprise %}
    {% link_in_list /configuring-saml-single-sign-on-for-your-enterprise %}
    {% link_in_list /configuring-user-provisioning-for-your-enterprise %}
{% topic_link_in_list /configuring-authentication-and-provisioning-with-your-identity-provider %}
    {% link_in_list /configuring-authentication-and-provisioning-for-your-enterprise-using-azure-ad %}