Category Archives: Virtualization

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

[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.

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FSLogix blocks OneDrive synchronization in virtual machines

[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

[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

[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

[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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Why ISL Online: Critical factors when choosing a remote desktop solution

[Sponsored Post]In the rapidly evolving IT world, choosing the right remote desktop software is critical for organizations that value security, ease of use and reliability. One provider of secure remote access that has been on the market since 2001 is ISL Online, which presents some considerations for choosing such software below. More ...


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

[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)

[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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Parallels Desktop: Authorizes Windows 11 on Mac M1 processors

Microsoft has authorized Arm versions of Windows 11 Pro and Enterprise for the Mac with Apple silicon for use in a virtual machine hosted with Parallels Desktop for Mac. IT administrators can now allow their users to run Windows 11 … Continue reading

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Cyberattack debacle on VMware ESXi Server; "Recovery Script" for ESXiArgs Ransomware Victims

[German]Since last weekend, cyberattacks on vulnerable ESXi servers have been ongoing worldwide and there are probably a number of people affected (in Germany, a three-digit number is said to be affected). The attackers are exploiting a vulnerability that was already … Continue reading

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Do we need RDS licenses for Citrix Virtual App/Desktop environments?

Do we actually need Microsoft RDS licenses if we run an environment with Citrix Virtual App/Desktop? Citrix has discussed this in the article Do We Need RDS Licenses For Citrix Virtual App/Desktop Environment. Short answer: yes, you need both Citrix … Continue reading

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