---
title: Authenticating users for your GitHub Enterprise Server instance
intro: 'You can use {% data variables.product.prodname_ghe_server %}''s built-in authentication, or choose between CAS, LDAP, or SAML to integrate your existing accounts and centrally manage user access to {% data variables.product.product_location %}.'
redirect_from:
  - /enterprise/admin/categories/authentication/
  - /enterprise/admin/guides/installation/user-authentication/
  - /enterprise/admin/articles/inviting-users/
  - /enterprise/admin/guides/migrations/authenticating-users-for-your-github-enterprise-instance/
  - /enterprise/admin/user-management/authenticating-users-for-your-github-enterprise-server-instance
  - /enterprise/admin/authentication/authenticating-users-for-your-github-enterprise-server-instance
versions:
  ghes: '*'
topics:
  - Enterprise
children:
  - /using-built-in-authentication
  - /disabling-unauthenticated-sign-ups
  - /using-cas
  - /using-saml
  - /using-ldap
  - /allowing-built-in-authentication-for-users-outside-your-identity-provider
  - /changing-authentication-methods
shortTitle: Authenticate users
---