ldap_sso
The LDAP Single Sign-On module allows an administrator to configure a Drupal site to use either NTLM or Kerberos to authenticate Drupal users.
In short, it relies on the $_SERVER web server variable to integrate a site within a managed domain. The net effect is that either automatically or by visiting a link, a user is authenticated and logged into a Drupal site without requiring the user to enter credentials on suitably configured installations manually.
Note that this module is not an SSO provider usable over the public internet without additional middleware. Look at SimpleSAML and similar modules if you are looking for this.
Drupal 8
LDAP SSO is usable together with the matching release from LDAP. See the release notes for further information.
Please use the following versions together:
LDAP 3.x LDAP SSO 1.x LDAP 4.x LDAP SSO 4.xDrupal 7
Up until and including version 2.2 the ldap_sso module was part of the LDAP module and is now available again here for consistency.
Setup information
For more information on configuring Apache to provide NTLM / LDAP authentication, see the README.md/txt (also provided under external documentation).
This module requires the LDAP suite of modules to be installed and fully configured for proper operation.