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About: Sander Berkouwer

Sander Berkouwer is CTO at SCCT, a Dutch Microsoft Partner. He is the author of the Active Directory Administration Cookbook, speaker and blogger at and He is awarded Microsoft MVP, Veeam Vanguard and VMware vExpert. Since 2009, Microsoft has awarded Sander with the Most Valuable Professional (MVP) award. Since 2016, Veeam has awarded Sander with the Veeam Vanguard award.

Recent Posts by Sander Berkouwer:

Managing Active Directory Time Synchronization on VMware vSphere

Written on July 18, 2019 at 2:20 PM, by

One of the hardest things to get right with virtual Domain Controllers is the time hierarchy in Active Directory. Recommended practices from Microsoft have been all over the place, but seem to have solidified in the last years, but the question remains: How do I manage Active Directory Time Synchronization on VMware vSphere? This is […]

HOWTO: Disable Unnecessary Services and Scheduled Tasks on Windows Servers running Azure AD Connect

Written on July 16, 2019 at 2:12 PM, by

Most Microsoft-based Hybrid Identity implementations use Active Directory Federation Services (AD FS) Servers, Web Application Proxies and Azure AD Connect installations. In this series, labeled Hardening Hybrid Identity, we’re looking at hardening these implementations, using recommended practices.   Why harden Azure AD Connect Hardening provides additional layers to defense in depth approaches. It changes the […]

Pictures of the KNVI "Active Directory, What’s Cooking?" Event

Written on July 15, 2019 at 5:27 PM, by

Last week, on Tuesday June 20 2019, the Royal Dutch Association of Information and IT Professionals (KNVI) organized the “Active Directory, What’s Cooking?” Event at Hit Eten en Drinken in Cappele aan den Ijssel in the Netherlands. As we were to gather at 18:30, I worked for a customer in Utrecht that Tuesday. I can […]

Sizing Domain Controllers correctly on VMware vSphere

Written on July 11, 2019 at 2:20 PM, by

In the first part of this series, we discussed why we want to virtualize Domain Controllers. The first question people ask is: How do I properly size Domain Controllers on my virtualization platform? Specifically, for VMware vSphere, this is a good question, because there are a couple of areas of attention, beyond the recommended practices […]

Why virtualize Domain Controllers?

Written on July 9, 2019 at 10:03 AM, by

One of the questions I get asked a lot is: Why virtualize Domain Controllers? So, in this blogpost, I’m showing you reasons why virtualization for Domain Controllers and Active Directory is a good idea. I also know there are a lot of caveats when virtualization Domain Controllers, so this blogpost serves as a small part […]