The most popular LDAP server software are:
1. OpenLDAP – It’s an open-source implementation of LDAP and the most widely used LDAP server software for Linux and Unix-based systems.
1. Microsoft Active Directory – It’s a proprietary LDAP server that is widely adopted by enterprises for managing user authentication and access control.
1. Novell eDirectory – It’s a cross-platform LDAP directory service that’s popular among organizations with complex network environments.
1. Apache Directory Server – It’s another open-source LDAP server that’s easy to install and configure.
1. IBM Tivoli Directory Server – It’s a commercial LDAP server that provides advanced features such as scalability, high availability, and security.
