Notes – Active Directory | Domain | Domain Controller

Active Directory

It is a Microsoft based service which provides Centralized Database for the domain. The database is called NTDS.


Domain

A Collection of Users, Computers, Groups, Servers  and other network resource use common NTDS Database in an organization. This organization is called as Domain.


Domain Controller

A computer running with Active Directory Services that computer is called as Domain Controller.


NTDS 

It is a database of Active Directory domain which stores users objects, computer objects, contact objects, OU, and other objects of AD Forest.


Active Directory Forest

AD Forest is a collection of Trees which uses common Schema and Configuration in Active Directory.


Active Directory Schema

A collection of Classes and Attributes is called as Active Directory Schema.


Trust Relationship

A relationship between two domains to authenticate users from one domain to another domain for access domain resource.


 

Types of Trust relationship

  • Parent-Child Trust:-  A type of trust relationship between parent domain and its child domain. when you install a new child domain in existing tree, a new Parent child trust established between parent domain and its child domain by default.
  • It is Transitive nature with Two-way Direction.

  • Tree Root Trust:- A type of trust relationship between tree domain and forest root domain. When you install a new Tree domain in an existing forest, a new Tree root trust  established between Tree domain and forest root domain by default.  
  • It is Transitive nature with Two-way Direction.

  • Shortcut Trust:- A type of trust relationship manually create by Administrator between Tree domain and Child domain (within the same forest) . It helps to improve the user logon process.
  • It is Transitive nature with One-way Direction or Two-way Direction.

     

  • Forest Trust:-  A type of trust relationship manually create by Administrator between two Root Domains.
  • It is Transitive nature with One-way Direction or Two-way Direction.

     

  • External Trust:-  A type of trust relationship manually create by Administrator between two Root Domains.
  • It is Non-Transitive nature with One-way Direction or Two-way Direction.

 

 

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