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Tutorial 5

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Overview of Active Directory Services

Planning Active Directory Implementation

Implementing Active Directory Services

Administering Active Directory Services


This Tutorial is divided into four sections:


Active Directory services is the directory service included with Windows 2000 Server. It extends the functionality of previous Windows-based directory services and adds new features. Active Directory services is secure, distributed, partitioned, and replicated. It is designed to work well in any size installation, from a single server with a few hundred objects to thousands of servers with millions of objects. Active Directory services adds many new features that make it easy to navigate and manage large amounts of information, saving time for both administrators and end users.


Before you implement a Windows 2000 network environment, you should first consider how to implement Active Directory services. Your planning should take into account the business structure and operation of your organization, such as physical office locations, future growth and reorganization, and access to network resources. There are several aspects of the Active Directory implementation that are part of the planning process. First, you must plan the DNS namespace. The namespace includes a domain hierarchy, the global catalog, trust relationships, and replication. In addition, the namespace includes OUs, which must also be considered in the planning process. In a single domain, users and resources can be organized by using a hierarchy of OUs to reflect the structure of the company. Finally, the planning process for the Active Directory implementation must include a plan to establish sites that can effectively facilitate the management of replication and logon traffic over links in your enterprise.


This lesson covers information about installing Active Directory services onto a Windows 2000 Server computer. This includes a review of the Active Directory Installation wizard. In addition, the lesson discusses the database and shared system volume created during the installation of Active Directory services. Finally, the lesson describes the Ntds.dit file and domain modes.


Once you have installed Active Directory services, you are ready to create and manage the objects that are stored within the directory service. This lesson describes the process of creating OUs and adding objects to those units. The lesson then provides details about how to manage those objects so that you can find, modify, and delete objects as necessary. Finally, this lesson covers how to control access to the objects, which includes managing Active Directory permissions and delegating administrative control of objects.