Author: Piotr Tarnawski

Welcome to my blog! My name is Piotr Tarnawski and I am an experienced System Engineer with a demonstrated history of working in the information technology industry. Skilled in Linux, Windows, Virtualization (VMware), DNS, and Active Directory. I work for Salesforce however content is my own and does not represent Salesforce as a company Contact: Twitter @AngrySysOps Facebook: https://www.facebook.com/AngrySysOps Youtube: https://www.youtube.com/c/AngryAdmin
Posted in Security Advisory

Security Advisory VMSA-2021-0014 (CVE-2021-21994, CVE-2021-21995)

IMPORTANT Security Advisory that was released earlier yesterday (13-07-2021) Security Advisory VMSA-2021-0014 VMware ESXi updates address authentication and denial of service vulnerabilities (CVE-2021-21994, CVE-2021-21995) with a maximum CVSSv3…

Continue Reading
Posted in ESXi VxRail

VxRail – Mellanox driver version 14.28.45.12 compatibility issue with Finisar SFP

I have VxRail cluster version 7.0.100-26719865 and recommended version is 7.0.202-27047874. However once I run update it got corrupted as node 1 never boot up…

Continue Reading
Posted in ESXi

ESXi ESXCLI Firewall Commands

You can use the ESXi Shell or ESXCLI commands to configure ESXi at the command line to automate a firewall configuration. NOTE: You can only manage predefined ports. To…

Continue Reading
Posted in PowerShell

PowerShell workshop with Angry Admin – Security guide for ESXi

Today I will show you how to apply VMware security recommendation to ESXi hosts using PowerShell. The script is smart way check the hosts compliance…

Continue Reading
Posted in Competition

How to get FREE VMware VCP Certification voucher! — Competition

Hi all, today I have a great offer for all of you! I am giving away VMware Certified Professional Voucher to two lucky persons. One…

Continue Reading
Posted in ESXi

DO NOT clone ESXi boot devices!

Some of admins are keen to clone ESXi boot device in order to speed up the deployment. Please remember that this workflow is not at…

Continue Reading
Posted in Aria

How to add solution to vROps

Solutions are delivered as PAK files that you upload, license, and install. When you add solutions, you configure adapters that manage the communication and integration…

Continue Reading
Posted in Security Advisory

PrintNightmare – CVE-2021-1675 & CVE-2021-34527

There is no patch as of yet, hence this workaround need to be applied. PowerShell: Determine if the Print Spooler service is running: Stop and…

Continue Reading
Posted in vCenter

How to check if STS certificate is about to expire or expired already

By now you should know what to do if your STS certificate expire, but if you have been caught on this one here are simple…

Continue Reading
Posted in vCenter

How to renew certificate for existing KMS setup

NOTE: KMS server root certificate (which per procedure should have been uploaded and trusted for vCenter to trust KMS) has long validity period and should…

Continue Reading