Active Directory Domain Services (AD DS) is Microsoft's directory service that stores identities, computers, groups, and policies for a Windows domain.
Simple definition
Active Directory Domain Services (AD DS) is Microsoft's directory service that stores identities, computers, groups, and policies for a Windows domain. It belongs to the Active Directory vocabulary and is useful when reading architecture diagrams, product documentation, logs, or administration procedures.
What is it used for?
Its main purpose is to centralize authentication, authorization, and administration of domain resources. The practical value depends on the surrounding architecture, security model, and operational requirements.
How does it work?
Domain controllers host the AD DS database, publish the required LDAP/Kerberos/DNS services, and replicate directory partitions between each other.
Key points
- Scope: Microsoft's directory service that stores identities, computers, groups, and policies for a Windows domain.
- Operational goal: Centralize authentication, authorization, and administration of domain resources.
- Implementation: Domain controllers host the AD DS database, publish the required LDAP/Kerberos/DNS services, and replicate directory partitions between each other.
Points to watch
DNS, time synchronization, replication, and system-state backups are critical dependencies; failures in any of them can affect the whole domain.
In short
Active Directory Domain Services (AD DS) = Microsoft's directory service that stores identities, computers, groups, and policies for a Windows domain. Use it when you need to centralize authentication, authorization, and administration of domain resources.