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Avatar photoRobert Allen

Founder, Owner, and Product Development at Active Directory Pro.

Robert has extensive experience in Windows System Administration, Office 365, Azure, Cisco switches and routers, VMWare, PowerShell, L2, and L3 networking, network security, Cisco ASA, and Fortigate firewalls. Robert Allen holds several IT certificates including, MCSE, MSA, CCNA, CCNA Security, and CompTIA Security +.

Since launching Active Directory Pro, Robert has published several detailed how-to guides and best practices that have become very popular. Active Directory Pro is now one of the most popular resources for information on Active Directory, Microsoft Servers, and related technologies.

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April 21, 2025

Remove Attribute Value in Active Directory

In this article, I’ll show you how to clear attribute values for multiple Active Directory user accounts. In this guide, … Read more

April 16, 2025

Configure Interactive Logon Message Using Group Policy

In this article, you will learn how to configure an interactive logon message using group policy. I’ll also show you … Read more

March 20, 2025

Find Active Directory Users with Empty (Null) Attributes

In this article, I’ll show you how to find Active Directory Users that have attributes that are blank. For example, … Read more

March 6, 2025

Disable Password Never Expires for Multiple Users

In this article, I’ll show you how to disable the password never expires flag for multiple Active Directory users. If … Read more

how to force domain controller replication

March 20, 2025

How to Force Replication Between Domain Controllers

In this article, I’ll show you how to force replication between all domain controllers and specific domain controllers. You can … Read more

step by step guide for install ad ds

March 5, 2025

Install Active Directory Domain Services (AD DS)

This is a detailed guide on how to install Active Directory Domain Services (AD DS). The steps in this guide … Read more

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Recent Articles

  • Remove Attribute Value in Active Directory
  • Configure Interactive Logon Message Using Group Policy
  • Find Active Directory Users with Empty (Null) Attributes
  • Disable Password Never Expires for Multiple Users
  • How to Force Replication Between Domain Controllers

Blog Categories

  • Active Directory
  • PowerShell
  • Group Policy
  • DNS
  • Office 365
  • Windows Server

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