Picture of Brian Desmond

Brian Desmond

Brian is a principal at Ravenswood Technology Group where he leads a team of professionals focused on delivering best-in-breed consulting services for the Microsoft security and identity management ecosystem. Brian has been recognized annually as a Microsoft MVP since 2003 and is the author of the fourth and fifth editions of Active Directory from O'Reilly.

[PRESENTATION] Protecting Office 365 Data in a Modern World This information in this presentation deck by Brian Desmond from Ravenswood Technology Group includes the following key takeaways: The traditional firewall [...]

[ARTICLE] Kerberos Delegation and Troubleshooting When things go wrong with Active Directory’s (AD’s) Kerberos implementation, troubleshooting can be a daunting task. Ninety-nine percent of the time, everything just works—so opportunities [...]

[BOOK] Active Directory, 4th Edition To help you take full advantage of Active Directory, this fourth edition of this bestselling book by Brian Desmond from Ravenswood Technology Group gives you [...]

[WEBINAR] How Attackers Exploit Active Directory: Lessons Learned from High-Profile Breaches Active Directory exploitation is the common thread in high-profile attacks, including Colonial Pipeline, SolarWinds, Hafnium. Every day we hear [...]

[ARTICLE] Kerberos in Active Directory Although Kerberos might seem like black magic to many systems administrators, it’s one of Active Directory’s (AD’s) key underpinnings. In this article for ITPro Today, [...]