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As with AD DS, AD LDS instances are also based on Lightweight Directory Access Protocol (LDAP) and provide hierarchical database services.Common featuresīoth directory services work with the same core code: Prior to Windows Server 2008, AD LDS was still called ADAM (Active Directory Application Mode) and was only considered as an extension and not as a server role. This makes it a leaner and more independent directory service that we can run as a stand-alone directory without integration with an existing AD. A security system for logging in as well as accessing directory data.Įssentially, Active Directory Lightweight Directory Services ( AD LDS) provides only a subset of the capabilities of AD DS.Any change to the directory data is replicated to all domain controllers in the domain. A replication service for distributing directory data on the network.A query / indexing mechanism that allows properties and objects to be published and searched by network users or applications (IDM Portal).The global catalog, which contains almost all information about the objects contained in the directory, allowing administrators and users to search for them, regardless of the domain.For example, a schema extension is necessary when setting up a Windows Server 2012 DC on a network that previously only knew Windows Server 2003 DCs.

Directory services, like the other various services used while configuring Windows Server, are also called server roles. Objects here are all users, groups or devices. A directory service serves essentially as a database in which we store and manage information about objects. AD Lightweight Directory Services – Pro and ConĪD DS and AD LDS are both directory services.