Windows Server 2008 Active Directory marked a major evolution in Microsoft’s directory services, officially shifting from a single service name to an umbrella brand comprising five specialized identity technologies. The core service was renamed from “Active Directory” to Active Directory Domain Services (AD DS).
As of January 14, 2020, Windows Server 2008 and 2008 R2 reached their End of Support (OES), meaning they no longer receive security updates. Organizations still interacting with these domains generally look to migrate them to modern versions like Windows Server 2022. The Five Core Identity Roles
With Windows Server 2008, Active Directory expanded into five distinct components:
Active Directory Domain Services (AD DS): The central database that manages users, computers, and network resource permissions.
Active Directory Lightweight Directory Services (AD LDS): Formerly known as ADAM, this provides directory services for directory-enabled applications without requiring a domain structure.
Active Directory Federation Services (ADFS): A single sign-on (SSO) system that safely extends user identities across organization boundaries and trusted partners.
Active Directory Certificate Services (ADCS): Built-in public key infrastructure (PKI) to create, manage, and distribute digital certificates.
Active Directory Rights Management Services (ADRMS): Security tools that protect sensitive information (like emails and documents) from unauthorized viewing, printing, or copying. Groundbreaking Features Introduced in 2008 & 2008 R2
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