Active Directory service provides single point management of network resources, allowing organizations to add, remove, and relocate users and resources easily. It also provides a method for designing a directory structure that meets the needs of your organization.
LDAP Implementation and Authentication
The Lightweight Directory Access Protocol is an open and industry standard application protocol for accessing and maintaining distributed directory information services over an IP network. LDAP is to provide a single sign on where one password for a user is shared between many services, such as applying a company login code to web pages.