Compare Entra ID and Active Directory Domain Services (AD DS)

 Active Directory Domain Services (AD DS)

  • True directory service, with a hierarchical X.500-based structure
  • Uses organizational units (OUs) and Group policy Objects (GPOs) for management
  • Can be queried and managed through Lightweight Directory Access Protocol (LDAP) calls
  • Primarily uses Kerberos for authentication
  • Include computer objects, representing computers that join an Active Directory domain
  • Uses Domain Name System (DNS) for locating resources such as domain controllers
  • AD DS uses trusts between domains for delegated management
Microsoft Entra ID
  • Primarily an identify solutions that is designed for internet-based applications
  • There are no OUs or GPOs
  • Uses HTTP and HTTPS protocols such as SAML, WS-Federation, and OpenID Connect for authentication
  • Includes federation services, and many third-party services are federated with and trust Microsoft Entra ID



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