Category Archives: Virtualization

Citrix: FSLogix causes logon and logoff errors

Posted on 2023-08-21 by guenni

[German]Are there sudden login problems or errors when logging out of a session under Citrix VDI? If FSLogix is used and it uses cloud cache locations for profiles or ODFC containers along with App Layering Elastic Layers, this may be … Continue reading →

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VMs running Windows Server Datacenter 2022 on Azure with Desktop Experience: Hotpatching available

Posted on 2023-07-23 by guenni

[German]One more quick piece of information for administrators who manage Windows Server 2022 Datacenter virtual machines on Microsoft Azure with Desktop Experience. Microsoft has just announced that hotpatching is now available for these machines. Advertising

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How to find weak passwords in Active Directory and eliminate them with PowerShell

[Sponsored Post]Weak or compromised passwords are a known gateway for attackers. If you are able to identify which users in Active Directory (AD) are threatened by this, then PowerShell can help to remedy it. However, PowerShell scripts cannot eliminate basic AD deficits, other tools are needed for this. More ...

VirtualBox 7.0.10 and 6.1.46 released

Posted on 2023-07-19 by guenni

[German]As of July 18, 2023, the developers of Virtualbox have released both version7.0.10 and the update to version 6.1.46. Both versions are maintenance updates for bug fixes. Advertising

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VMware patched vulnerabilities in vCenter Server (June 22, 2023)

Posted on 2023-06-23 by guenni

[German]VMware has released updates to its vCenter servers to patch important vulnerabilities (CVE-2023-20892, CVE-2023-20893, CVE-2023-20894, CVE-2023-20895 and CVE-2023-20896). In addition, the opportunity could also be used to update VMware tools to close the authentication vulnerability CVE-2023-20867. Advertising

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FSLogix blocks OneDrive synchronization in virtual machines

Posted on 2023-05-06 by guenni

[German]Brief note for administrators who use FSLogix in the company on the one hand, but virtualize Windows instances on the other. In this combination, synchronization problems with OneDrive may occur. An error "FSLogix_unsupported_environment" is then reported. Microsoft confirmed this in … Continue reading →

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Windows Server 2022: Microsoft eases licensing rules a bit

Posted on 2023-04-27 by guenni

[German]Microsoft slightly relaxed the licensing rules for Windows Server 2022 in early April to correct some annoyances and better keep up with the competition. For example, the requirement that VMs with 20 cores require a total of 24 licenses was … Continue reading →

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Citrix Workspace App 2203: MSEdgewebview2 causes high resource usage and performance issues

Posted on 2023-04-07 by guenni

[German]Brief note for administrators of Citrix Workspace App 2203: Build 2203 of the Citrix Workspace App in question seems to cause high resource utilization and thus performance problems under Windows. [Addendum: It's not clear to me, if version 2203 LTSC … Continue reading →

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KVM bug: Windows VMs can hang at boot after 11 days

Posted on 2023-04-04 by guenni

[German]Over the past few months, some administrators have complained of Windows virtual machine boot issues in conjunction with the monthly security updates. In many cases, this could be traced back to VMware products such as ESXi – or turning off … Continue reading →

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Review of the VMware ESXi server cyberdebacle (Feb. 2023)

Posted on 2023-03-04 by guenni

[German]A brief flashback to February 2023 – since the beginning of the year, numerous VMware ESXi servers have been hijacked via a known vulnerability that has long since been closed. This VMware ESXi vulnerability has a huge threat potential and … Continue reading →

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Windows Server 2022: VMware ESXi 7.0 U3k Patch for Secure Boot Issue (Update KB5022842, Feb. 2023)

Posted on 2023-02-22 by guenni

[German]VMware released VMware ESXi 7.0 U3k on Feb. 21, 2023, to address the Secure Boot issue of VMs. The background was that with the Feb. 14, 2023 patchday, an installed security update (KB5022842) for Windows Server 2022 prevented virtual machines … Continue reading →

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