Active Directory Fundamentals

Active Directory Schema: An overview into Schema Extension

Active Directory (AD) schema is a blueprint that describes the rules about the type of objects that can be stored in the AD as well as the attributes related to these objects. The schema thus defines the content, and the structure of the object classes, and theobject attributes used to create an object. While creating a new object, the AD references the classes defined in the schema and…
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Active Directory Fundamentals

What is a Read Only Domain Controller (RODC)

Introduction A read only domain controller (RODC) is a type of domain controller that has read-only partitions of Active Directory Domain Services (AD DS) database. RODC is available in Windows server 2008 OS and in its succeeding versions. Enterprises tend to deploy RODC under two conditions viz., When there is not enough physical security to the datacenter.When there isn’t…
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Active Directory Fundamentals

Active Directory Subnets, Sites, and Site links

Active Directory Subnets A single, physical network can be broken into smaller segments called subnets in a process called subnetting. Each subnet on a network is connected by routers. Every device in a network, whether it’s a domain controller (DC), a server, or a client, must belong to a particular subnet. By using subnets, an organization won’t need to acquire a new network number…
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Active Directory Fundamentals

Creating objects in active directory

You can create objects in Active Directory by using the Active directory users and computers console. Start -> Administrators tools -> Active Directory users and computers. On the Active Directory users and computers console, right click on the container object within which you would like to create an object. A submenu pops out , from that choose the option new. On choosing the…
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Active Directory Fundamentals

Active Directory objects: All you need to know

What you’ll learn: Active Directory (AD) is a directory service introduced by Microsoft as a centralized network resource management system. This network is comprised of entities that represent real users or network resources, and the entities are called Active Directory objects. AD objects can be of several types based on what they represent and their function. In this article, we shall…
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Active Directory Fundamentals

Active Directory Nested Groups Explained

What you will learn: Nesting groups in Active Directory (AD) allow for better control in managing access to resources in the AD network. Group nesting also makes it easier to assign permissions across multiple domains and greatly reduces the hassle for IT administrators. However, the process of nesting groups can quickly get confusing owing to the various types of groups in AD and their scope.
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Active Directory Fundamentals

Framework of Active Directory

The Active Directory structure is built on the domain level. The framework that holds the objects can be viewed at different levels namely forest, domain trees and domains. At the top of the level is the forest. A forest holds all the Active directory data. The first domain added to the forest is the forest root domain. Information exchange happens within a forest. All domains within a…
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Active Directory Fundamentals

Trusts in Active Directory: An overview

What you will learn from this article: An Active Directory network may contain several domains in a hierarchical fashion. All the resources of one domain are not directly available to every other domain. The availability of resource sharing is governed by Active Directory trusts. In this article, we will take a look at what are trusts in Active Directory, how they are categorized, and the…
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Active Directory Fundamentals

What are Domain Controllers?

What is a domain and a domain controller? The computer machines that function as servers in the domain can either be a member server or a DC. A member server belongs to a particular domain, but it does not authenticate the users of that domain. There is no data about the entire AD network installed in it. DC on the other hand are servers responsible for allowing access to domain resources. It…
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Active Directory Fundamentals

What is Global Catalog Server in Active Directory?

What you will learn from this article: An Active Directory network would be made of forests and domains. The domain controllers (DC) of a particular domain would contain all the information of the domain they belong to. However, these DCs would not contain information about objects from other domains under the same forest. This may pose a problem when there is a need to look up information…
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