The LDAP server is a means of providing a single directory source (with a redundant backup optional) for system information look-up and authentication. Using the LDAP server configuration example on this page will enable you to create an LDAP server to support email clients, web authentication, etc.

What is the purpose of LDAP in Linux?

LDAP (Lightweight Directory Access Protocol) is an open and cross platform protocol used for directory services authentication. LDAP provides the communication language that applications use to communicate with other directory services servers.

Why is LDAP used for authentication?

LDAP provides a means to manage user and group membership stored in Active Directory. LDAP is a protocol to authenticate and authorize granular access to IT resources, while Active Directory is a database of user and group information.