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LDAP Overview and Structure

Jun 20, 2025

Overview

This lecture introduces the Lightweight Directory Access Protocol (LDAP), focusing on its role in directory services and the structure of LDAP entries.

LDAP and Directory Services

  • LDAP stands for Lightweight Directory Access Protocol and is used to access directory services over a network.
  • Active Directory and OpenLDAP are two common directory services that utilize LDAP.
  • LDAP allows you to perform operations such as adding, deleting, and modifying entries in a directory server database.

LDAP Entry Structure

  • An LDAP entry represents a record describing an object within the directory.
  • Each LDAP entry has a unique Distinguished Name (DN) used to identify it.
  • Entries consist of attributes (like CN, OU, DC) paired with their respective values.
  • CN (Common Name) typically refers to the object’s name, such as a person's name.
  • OU (Organizational Unit) represents a group or department in the organization.
  • DC (Domain Component) refers to parts of the domain name, such as 'example' and 'com' in example.com.

Key Terms & Definitions

  • LDAP (Lightweight Directory Access Protocol) — a protocol used to access and manage directory services over a network.
  • Directory Service — software that stores, organizes, and provides access to information in a directory.
  • Entry — a record in a directory service representing an object (like a user or device).
  • Distinguished Name (DN) — a unique identifier for each LDAP entry.
  • Attribute — a field describing a property of an entry, paired with a value.
  • CN (Common Name) — an attribute indicating the name of an object.
  • OU (Organizational Unit) — an attribute denoting the object's group or department.
  • DC (Domain Component) — an attribute representing segments of the domain name.

Action Items / Next Steps

  • Review the upcoming reading to reference LDAP attribute details.