Tag Archives: Virtualization

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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Parallels Desktop: Authorizes Windows 11 on Mac M1 processors

Posted on 2023-02-19 by guenni

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 →

Posted in macOS, Virtualization, Windows | Tagged , , | 1 Comment

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

Posted on 2023-01-29 by guenni

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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How to log off disconnected Citrix sessions after 1 hour via power shell

Posted on 2022-12-26 by guenni

[German]A short tip for administrators of Citrix solutions (Citrix Virtual Apps and Desktops Service). Sometimes administrators are need to log off users whose sessions have been in disconnected state for a long time. There is a PowerShell solution from Citrix … Continue reading →

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Mandiant, VMware and US-CERT warn of malware targeting VMware ESXi servers

Posted on 2022-09-30 by guenni

[German]Google-acquired security vendor Mandiant has encountered a new malware family (VirtualPITA, VirtualPIE, and VirtualGATE) that targets virtualization solutions like VMware ESXi Server and uses specialized techniques to infiltrate. VMware has issued a security advisory to that effect, and US-CERT is … Continue reading →

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VMware ESXi: Retbleed fixes cause 70% performance loss in Linux VMs running kernel 5.19

Posted on 2022-09-14 by guenni

In performance regression testing, VMware testers found a severe performance drop for Linux guests when running kernel 5.19 in a VMware ESXi virtual machine with the Retbleed fixes installed. The degradation was up to 70% for computing, up to 30% … Continue reading →

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VMware Workstation: UNSUPPORTED_PROCESSOR error with Windows 11 Insider and Server 2022

Posted on 2022-08-28 by guenni

[German]Users who want to install an Insider Preview of Windows 11 or a Windows Server 2022 under VMware Workstation and run it virtualized are currently running into a problem. The installation of the guest operating system aborts with a green … Continue reading →

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VMware Carbon Black creates BSOD in Windows (August 2022)

Posted on 2022-08-24 by guenni

[German]VMware users running Carbon Black Cloud Sensor version 3.6.0.1979 – 3.8.0.398 were greeted with blue screens on their Windows systems as of August 23, 2022. The cause is an update for Carbon Black Sensor 3.7.0.1253, which is responsible for this … Continue reading →

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VMware ESXi 6.7 and 7.0 Updates (June 14, 2022)

Posted on 2022-06-20 by guenni

[German]VMware has released two security updates for ESXi 7.0 and for ESXi 6.7 as of June 14, 2022. Blog reader Singlethreaded pointed out these security updates in a comment. In addition to ESXi, vCenterServer & Application running VMware 6.7 are … Continue reading →

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