With over 15 years of hands-on experience managing Active Directory in enterprise environments, I’ve seen it evolve from a basic identity store to a cornerstone of modern IT infrastructure.
From greenfield AD deployments to complex multi-domain, multi-site architectures, my journey has involved every aspect of AD—design, group policy management, replication troubleshooting, time synchronization, and much more.
The articles featured on this page are distilled from countless real-world scenarios, challenges, and solutions I encountered throughout my career. They are meant to provide practical guidance rooted in field experience—not just theory. You’ll also find a dedicated section on Active Directory Certificate Services (AD CS), covering certificate infrastructure design, implementation, and common pain points.
Disclaimers:
- The domain name
subhro.comreferenced in many of the articles is a fictional/internal domain used solely within a lab environment for demonstration and PoC purposes. I do not own the public domainsubhro.com. - Due to the fast-moving nature of Microsoft Windows Server and related technologies, the information shared in these articles may become outdated over time. Please consult the latest official Microsoft or product documentation before applying in a production environment.
- Always test thoroughly in a non-production environment before implementation. The information is shared in good faith and should be used at your own risk.
- All articles are originally written by me and are not copied from any other sources. In some cases, references have been taken from Microsoft or other official product documentation, which are usually cited (often with URLs) unless unintentionally overlooked. To the best of my knowledge, all content is unique. In some of the newer articles, I have used AI assistance to enhance sentence structure and clarity.
Active Directory : Checklist for Decommissioning a Domain Controller
Certificate Services
Active Directory Certificate Services: Digital Certificate Overview
Active Directory Certificate Services: Enterprise CA Architecture
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