Active Directory



What is Active Directory?

Active directory is a directory service which contains information of all user accounts and shared resources on a network.
Active directory is a centralized Hierarchical Directory Database.
Purpose of Active Directory
Provides user logon and authentication services using Kerberos protocol.

To centralize and decentralize the resource management.

To centrally organize and manage:

User accounts, computers, Groups, Network Resources.


Enables authorized users to easily locate network resources.
Structure of Active Directory
Logical Structure
•       Domain
•       Tree
•       Parent/root
•       Child/branch
•       Forest
Physical Structure
•       Domain  Controllers
•       Sites
Practical:
How to configure domain controller OR How to install Active directory domain services

Requirements to install ADDS (Active Directory Domain Services)
•       Server Operating system
•       Static IP Address
•       Domain Name Eg: Microsoft.com
•       DNS Service
•       NTFS Partition


IP: 10.0.0.1, Subnet Mask: 255.0.0.0, Pref.DNS: 10.0.0.1
Step1: Assign IP address.
Step2: Install Active Directory

Domain Controller


  1. 1.     Any one of the server Operating system workgroup model computer. If ADDS is installed, that machine is called Domain Controller.
    2.     Domain controller machine cannot create “Local Users”.
    3.     Domain Controller machine creates Domain User accounts.
    4.     Domain Controller machine uses NTDS.DIT database.  New Technology Directory Services. Directory Information Tree.
    5.     In WIN 2008 OS, NTDS.DIT database file size is 12MB. And the location is WINDOWS/NTDS.

Client & Member Servers

Clients


  •         A computer joined in the domain with client OS

          Client OS like- WIN VISTA, WIN XP PRO, WIN 2000 PRO, WIN 7 & WIN8.

Member Servers


  •       A computer joined in the domain with server OS
             Server OS like-WIN 2000 SERVER, WIN 2003 SERVER, WIN 2008 SERVER & WIN 2012 SERVER.
     

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