The Lightweight Directory Access Protocol (LDAP) is an application protocol for accessing and maintaining distributed directory information services over an Internet Protocol (IP) network.
Directory services may provide any organized set of records, often with a hierarchical structure such as a corporate email or telephone directory. LDAP is an IETF standard and the latest specification is Version 3, published as RFC 4511.
LDAP in the Gluu Server
LDAP is used as the persistence layer for the Gluu Server, not an application integration protocol. Applications should stick to SAML or OpenID Connect for interacting with the Gluu Server. Learn more in the Gluu Server CE docs.