Active Directory

Active Directory Overview

Active Directory (AD) was created by Microsoft in the mid-1990s to serve as a directory service for Windows-based networks. AD is the technology that helps system administrators authorize, authenticate, and manage computers, groups, and users who access a computer network. It also stores configuration and other information for key Microsoft products such as Microsoft Exchange.

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Recent Active Directory Articles

Test Connectivity to an Active Directory Domain Controller from a PC

By Daniel Petri - July 24, 2014

Daniel Petri provides some tools and techniques to test connectivity from a Windows PC to an Active Directory Domain Controller.

How Can I Block the Use of Passwords in Group Policy Preferences?

By Russell Smith - June 30, 2014

Learn how to update the Group Policy Management Console (GPMC) to prevent IT administrators from setting passwords in this new Ask an Admin post.

3 Tips for Working with the Active Directory Administrative Center (ADAC)

By Russell Smith - May 21, 2014

In this Ask an Admin, learn a few tricks to work faster with the Active Directory Administrative Center (ADAC).

Remove Stale Computer Accounts from Active Directory Using PowerShell

By Russell Smith - May 20, 2014

Search for and remove inactive users and computer accounts and query Active Directory – all by using PowerShell. Find out how in this handy post!

Editor's Picks

Defragmenting an Active Directory Database

By Brien Posey - January 8, 2009

Need to keep AD running in top shape with Windows Server 2008? Brien Posey shows you how.

How can I prevent users from using USB removable disks (USB flash drives) by using Group Policy (GPO)?

By Daniel Petri - January 8, 2009

Daniel Petri shows you how to block the use of USB drives on client machines by using Group Policy Objects (GPO).

Forcibly Removing Active Directory from a DC - Retire a  Domain Controller

By Daniel Petri - January 8, 2009

Looking to retire a domain controller? Daniel Petri shows you how to remove Active Directory from a domain controller before you do.

How to Install a Replica DC in an Existing AD Domain on Windows 2000

By Daniel Petri - January 8, 2009

Need a second Domain Controller for an Active Directory domain on a Windows 2000 Server? Daniel Petri shows you how it's done.

Installing Active Directory on Windows Server 2008

By Daniel Petri - January 8, 2009

Daniel Petri guides you through the steps required to create a Windows Server 2008 Domain Controller for a new Active Directory domain.

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