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I require &nbsp;a basic guide or tutorial for understanding and functioning of Active Directory, DNS and Group Policy please.
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I require  a basic guide or tutorial for understanding and functioning of Active Directory, DNS and Group Policy please.

Active Directory, Group Policy and DNS guide/tutorial

Active Directory (AD) is a Microsoft brand for identity-related capabilities. In the on-premises world, Windows Server AD provides a set of identity capabilities and services, and is hugely popular (88% of Fortune 1000 and 95% of enterprises use AD). This topic includes all things Active Directory including DNS, Group Policy, DFS, troubleshooting, ADFS, and all other topics under the Microsoft AD and identity umbrella.