Category Archives: Active Directory

Critical DNS Server Heap Overflow Vulnerability could allow Remote Code Execution (Critical, CVE-2018-8626)

This week, for its December 11th 2018 Patch Tuesday, Microsoft released a security update for supported versions of Windows Server acting as DNS Servers. As many Domain Controllers are installed and configured as such, this is a serious vulnerability. The update addresses the vulnerability by modifying how Windows DNS servers handle requests.          About the […]

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Azure AD Connect v1.2.69.0 fixes an issue with Device Write-Back

Late last week, Microsoft released a new version of Azure AD Connect, its free Hybrid Identity bridge product to synchronize objects and their attributes from on-premises Active Directory Domain Services (AD DS) environments and LDAP v3-compatible directories to Azure Active Directory.      What’s Fixed There is only one fix in version 1.2.69.0. This hotfix build […]

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Azure AD Connect moves to TLS 1.2-only with version 1.2.65.0

Last week, Microsoft released a new version of Azure AD Connect, its free Hybrid Identity bridge product to synchronize objects and their attributes from on-premises Active Directory Domain Services (AD DS) environments and LDAP v3-compatible directories to Azure Active Directory.           What’s New Write-back of msExchUcVoicemailSettings The Azure AD Connect team changed the functionality of […]

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KnowledgeBase: KB4462917 breaks Domain Controller Promotions for new Active Directory domains in existing forests

Microsoft’s October 9th, 2018 Security update KB4462917, raising Windows Server 2016 to build 14393.2551, feature a security update for the JET Database engine. However, this update seems to cause an issue with Windows Server installations intended to become Active Directory Domain Controllers. One of my team members at SCCT experienced this issue at a customer […]

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Windows Server 2016’s October 2018 Quality Update brings several Active Directory fixes

Windows Server 2016’s October 2018’s Cumulative Quality Update, bringing the OS version to 14393.2580, offers a total of three fixes for issues you might be experiencing on your Windows Server 2016-based Domain Controllers and Active Directory Federation Services (AD FS) Servers.      About Windows Server 2016 Updates Microsoft issues two major updates each month for […]

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Passing Microsoft Exam 70-742: Identity with Windows Server 2016

There is a good and free way to prepare for Microsoft exam 70-742: Identity with Windows Server 2016. In the past years, I conducted webinars that can serve as a primer on Active Directory in terms of forests, domains, trusts, security and on Group Policy. They are not and were never intended as the sole […]

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The video for ‘Virtualizing Active Directory the Right Way’ from VMware’s VMworld 2018 US event is now available

In August, Matt Liebowitz and I presented a 60-minute breakout session during VMware’s VMworld US 2018 event at the Mandalay Bay Convention Center in Las Vegas, Nevada. Our presentation and demos were recorded. Both the stage, the slides and the screen of the demo machine were captured by the VMworld organization. If you were unable […]

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Identity-related sessions at Microsoft Ignite 2018 in Orlando

Microsoft Ignite 2018 North America in Orlando is only a few weeks away and many of us have begun filling their session builder with interesting sessions, corresponding to their interests and knowledge. I decided to compile a list of the Active Directory, Azure Active Directory and Enterprise Mobility + Security (EM+S) related sessions at Ignite […]

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Pictures of our Security session at Graafschap College

As I mentioned a couple of weeks ago, Raymond Comvalius and I were scheduled for an ‘Inspire Me’ session at Graafschap College last week. Our challenge was to inspire their High School students in their 3rd year for their future as systems administrators with information security. For me, this presentation followed on a flight from […]

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Pictures of VMware VMworld US 2018

Last week, I delivered three sessions at VMware’s VMworld US 2018 event in Las Vegas. As I was scheduled to present a full-day workshop on Sunday August 26th, I decided to fly in on Friday, so I’d have the entire Saturday to cope with the jetlag that accompanies crossing 9 time zones. My inbound flight […]

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