This one caught me off-guard when installing my PC with a fresh image of Windows 10. The issue: After installing a Module for PowerShell using Install-Module, I wanted to see all the installed modules with Get-InstalledModule. When I hit Enter, I got the following error message: Cannot convert null to type “System.DateTime” Cause and solution: […]

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Most of you have probably heard about the vulnerability in bash by now, which affects most Linux distributions and OS X. If not, check out the article from Red Hat’s security blog. Most administrators will want to patch bash as soon as possible. When running a large VMware environment, first thing you probably want to […]

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Starting from Zabbix 2.0, there is an┬áhost inventory tab for every host you add to Zabbix. By default, only the OS field get’s populated by System Information on a Windows host┬áthat’s being monitored using the Zabbix agent. However, you can use PowerShell using WMI queries to fill the Host Inventory tab of your Windows hosts […]

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As a VMware vSphere administrator, one of the important things that you should check for on a regular base is active snapshots on your virtual machines. Keeping snapshots for a long time can affect virtual machine performance negatively. Furthermore, your datastore could completely fill up because of rapidly growing active snapshots, resulting in virtual machines […]

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