gnupasswd - gnu change user password
two factor authentication management system
Replicates POSIX user credentials over the Internet - NIS replacement
Two-factor authentication system
Authentication, Access Control, and Single Sign-On
Username and password authentication strategy for Passport and Node.js
LDAP client providing user friendly access to global address books.
LDAP passwd Enumerator for Puppet
Browse and edit LDAP-based directories / entries
Add LDAP user authentication in MySQL
A class for PHP to talk to Active Directory through LDAP.
LDAP backend for VirtualBox RDP Auth