Advisory Severity Critical VMware vCenter Server updates address sensitive information disclosure vulnerability in the VMware Directory Service (vmdir) (CVE-2020-3952)

VMWare just posted this advisory:https://www.vmware.com/security/advisories/VMSA-2020-0006.html vCenters affected:vCenter Server 6.7 (embedded or external PSC) prior to 6.7u3f is affected by CVE-2020-3952. Only if it was upgraded from previous versions 6.0 or 6.5. Clean installations of vCenter Server 6.7 (embedded or external PSC) are not affected. KB to determine if your vCenter is affected:https://kb.vmware.com/s/article/78543 Resolution:Upgrade to 6.7U3f … Read more

Excessive Hardware health alarms being triggered for “Sensor -1 type” on ESXi hosts running vSphere 6.7 U3 (74607) Work Around & Solution

Recently while working in my environment I uncovered a known issue and a KB article with a resolution and work around.  Here is a step by step of the applied work around.  I applied the immediate work around to avoid a vCenter crash, which is never a good thing. Error:Alarm ‘Host hardware sensor state’ on … Read more

Powershell / PowerCLI Script to List & Unmount ISO on VMWare VMs prior to VxRail 4.5 or 4.7 upgrade

In the past I have spoken about needing to remove mounted ISOs from VMs prior to a VxRail upgrade. I have had many people DM me asking if I use a script or do it manually. First, it would only be possible in a small environment to manually remove mounted ISO files or in environments … Read more

How to fix PowerCLI and/or PowerShell running scripts is disabled

I know this one should be real basic but sometimes we forget the basics.  Have you ever stood up a new environment, installed PowerShell, PowerCLI, imported your favorite scripts and when to execute and got a permission error.  Were you rusty on how to change permissions to give yourself the capability to run scripts?  Here … Read more

How to install PowerCLI 11.5 in PowerShell and PowerShell ISE

While i was standing up a new engineering box I needed to install PowerCLI. I figured since I am writing a lot more these days I would show real quick how to install PowerCLI from Powershell. Site for documentation:https://code.vmware.com/web/tool/11.5.0/vmware-powercli Command:Install-Module VMware.PowerCLI -Scope CurrentUser If PowerCLI is already installed and you want to update add the … Read more

Use VMWare vmkping to troubleshoot network connectivity & jumbo frame issues + cheat sheet

Ping has been a powerful tool for windows/linux/VMWare guys for a long time in troubleshooting network connectivity.  VMkping is ping for vmk traffic.  You execute the vmkping command from the ESXi host so you will need SSH services enabled.  Below I will dust off some old vmkping commands I still use today to help me … Read more