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Category Archives: KnowledgeBase Articles

KnowledgeBase Articles

Knowledgebase: You receive Event-ID 1539 and ‘This device does not allow its write-caching setting to be changed’ warnings on virtualized Generation 2 Domain Controllers

Written on October 7, 2015 at 9:39 PM, by

When I was in training as an Active Directory admin, I was taught that the disk(s) where the Active Directory database and Active Directory transaction logs reside are automatically configured with write-back caching disabled. Today, roughly 15 years later, I found out that although my teacher was right, things have changed and might be counter-intuitive […]

KnowledgeBase: Users in Azure Multi-Factor Authentication Server 6.3.x and up can not select One-Way OTP or PIN options in the User Portal

Written on August 12, 2015 at 11:21 AM, by

Microsoft’s on-premises Azure Multi-Factor Authentication Server is a rapidly evolving product for all your multi-factor authentication needs. In recent versions, Microsoft has added numerous features in the product that was originally developed by the acquired PhoneFactor company. One such feature is the one-way SMS authentication method, as an alternative to the two-way SMS method. Microsoft […]

KnowledgeBase: Install-ADCSCertificationAuthority fails without a network adapter present

Written on May 21, 2015 at 12:29 PM, by

An issue has been identified in situations where you would configure a Windows Server installation as an Offline Root Certification Authority (CA). The Install-ADCSCertificationAuthority Windows PowerShell Cmdlet would error out, while you could achieve the scenario without problems using the Graphical User Interface (GUI).    The situation In multi-tier Public Key Infrastructure (PKI) implementations, you […]

Knowledgebase: You receive a "Web Service Requests must be protected by authentication" error when activating a Multi-Factor Auth app

Written on March 27, 2015 at 8:01 AM, by

I have identified an issue with Azure Multi-Factor Authentication (MFA) in a hybrid deployment. When you access the User Portal to activate the mobile app, you receive an error. All other Multi-Factor Authentication (MFA) functionality works.   The situation After you’ve deployed a Multi-Factor Authentication Server installation as part of your Azure MFA hybrid implementation, […]

KnowledgeBase: Azure MFA Portal shows error “Error communicating with the local Multi-Factor Authentication service. Please contact your administrator.”

Written on March 27, 2015 at 7:52 AM, by

When you’re setting up Microsoft Azure Multi-factor Authentication (Azure MFA) in a setup involving the on-premises MFA Server, and want to use the User portal for registration, you might encounter an error that makes the portal unusable. Luckily, there’s a solution.   The situation On an on-premises Windows Server installation with the Azure Multi-factor Authentication […]

KnowledgeBase: The user name and password box might not appear on the sign-in screen in Windows 10 Technical Preview

Written on March 26, 2015 at 6:44 PM, by

Yesterday, Microsoft issued a new Knowledgebase article for the brave people, like you ant me, that run Windows 10 Technical Preview, build 10041. It fixes a bug where the user name and password box might not appear on the sign-in screen.   The situation You run the 32bit (x86) version of Windows 10 Technical Preview […]

Security Thoughts: Vulnerability in NETLOGON cloud allow spoofing (MS15-027, CVE-2015-0005)

Written on March 10, 2015 at 9:37 PM, by

While this has proven to be n interesting month with the Factoring RSA Export Keys (FREAK) technique affecting a plethora of Operating Systems, Microsoft has also issued an update to address a privately reported vulnerability in NETLOGON.   About the vulnerability A spoofing vulnerability exists in NETLOGON that is caused when the NETLOGON service improperly […]

Security Thoughts: Vulnerability in SChannel allows security bypassing (Important, FREAK, MS15-031, CVE-2015-1637)

Written on March 10, 2015 at 9:20 PM, by

In recent days, a new attack vector, called the FREAK technique, that facilitates SSL/TLS Man-in-the-Middle (MitM) attacks was in the news. Microsoft has confirmed that its implementations of SChannel in Windows and Windows Server are also vulnerable to this attack method and has released updates for all its supported Operating Systems.   About FREAK On […]

Running downlevel VMs on Windows 10 Hyper-V? Update the Integration Components

Written on March 10, 2015 at 7:36 PM, by

I’m seeing lots of people adopting the Technical Previews of Windows 10 and Windows Server 2016 around me, and running Virtual Machines (VMs) on the built-in Hyper-V hypervisor seems to be among the scenarios tested thoroughly. Microsoft has issued a KnowledgeBase article detailing an update in the Integration Components (ICs) for Windows 7, Windows 8.1, […]

KnowledgeBase: Domain Controller promotion stops responding when NetBIOS over TCPIP is disabled in Windows Server 2012 R2

Written on January 14, 2015 at 2:54 PM, by

Sometimes, an easy task becomes daunting. Especially when you’re working with technology like Active Directory Domain Services and you can’t even get a server promoted to a Domain Controller because the promotion process hangs and you’re left without clues.   The situation You can promote a Windows Server to an Active Directory in the following […]