Category Archives: Virtualization

Fine-Tuning Updates: Targeted Host Remediation with vSphere Lifecycle Manager

Posted on March 26, 2024 by brian.wuchner

In vSphere 7.0 functionality was introduced to be able to manage a cluster of ESXi hosts with a single image. In addition to being a bit easier to configure than the prior Update Manager Baselines, this feature also integrates with … Continue reading →

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TinyCore 15 Virtual Machine – very small VM for testing

Posted on February 23, 2024 by brian.wuchner

For several years I’ve been using a couple of very small TinyCore Linux virtual machines for testing in my lab. These run very well in nested infrastructure and have a package to support open-vm-tools so you can interact with them … Continue reading →

Posted in Lab Infrastructure, Scripting, Virtualization | 2 Comments

Cannot configure identity source due to Type or value exists.

Posted on February 19, 2024 by brian.wuchner

On vCenter Server 7.0u3p (aka 7.0.3.01800), I recently experienced an error “Cannot configure identity source due to Type or value exists.” when configuring Active Directory over LDAPS. The issue was caused by a duplicate certificate, but that fact was not … Continue reading →

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vSphere ESXi Host Certificate Status Alarm bulk resolution

Posted on February 15, 2024 by brian.wuchner

In the vSphere UI, some hosts will occasionally trigger an alarm of “ESXi Host Certificate Status”. VMware Skyline has a finding for this issue as well — vSphere-HostCertStatusAlarm. The resolution is typically straightforward, right click the host > certificates > … Continue reading →

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Unlocking Seamless Connectivity with Tailscale

Posted on January 15, 2024 by brian.wuchner

I may bit a bit late to the party, but I recently found out about Tailscale. I was looking for a remote access solution for my lab, which is behind my ISPs Carrier Grade NAT (CGNAT). This means I don’t … Continue reading →

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