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 vCenter

How to deploy vCenter 7.0

PREREQUISITES: Download ISO file from Vmware website Make entry in DNS for your new vCenter Please  ISO somewhere close to location of your new VC…

Continue Reading
Posted in PowerShell

PowerShell – Disable SLP on ESXi firewall – VMSA-2019-0022 (CVE-2019-5544), VMSA-2020-0023 (CVE-2020-3992) and VMSA-2021-0002 (CVE-2021-21974).

OpenSLP vulnerabilities have been disclosed that affect ESXi. The possibility of exploitation can be removed by performing the steps detailed in this article I will…

Continue Reading
Posted in vCenter

vSphere 7 – Certificate Management

With vSphere 7 the management of certificates became much easier. For starters the solution certificates are deprecated, being replaced under the hood with a less…

Continue Reading
Posted in vCenter

vCenter 7.0 Update 2 Upgrade Issue – Exception occurred in install precheck phase

vSphere 7.0. Update 2 is over 5GB large and promises a lot of new features. However upgrading your environment can proof difficult. Once I start…

Continue Reading
Posted in vCenter

How to Configuring Identity Federation to Use Windows ADFS

Ok, you want to use multi-factor authentication accessing your vCenter? With vSphere 7 you can configure ADFS (Active Directory Federation Services) ADFS is a software…

Continue Reading
Posted in vCenter

Before and After vCenter FQDN and IP (PNID) change – IMPORTANT!

So you wanna change FQDN or IP of your vCenter? Here is a couple things to consider: BEFORE CHANGE: If you run vCenter in HA…

Continue Reading
Posted in vCenter

vSphere 7 – How to change the FQDN and IP (PNID) Address of vCenter Server Appliance

There is a new feature in vSphere 7 allowing admins to change FQDN and IP of vCenter Server Appliance, the feature for which I personally…

Continue Reading
Posted in Aria

vROps cert thumbprint and trust issue

After renewing certificate for one on my vCenters and refreshing connection with vROps, I was not able to re-connect NSX appliance. The error messages was:…

Continue Reading
Posted in Aria

How to find object’s internal ID in vROps

Go to Administration tab and click on Inventory. Select from the inventory pane object you are interested in. 3. Click the “columns” icon toward the…

Continue Reading
Posted in vCenter

Transfer failed: IO error during transfer : java.io.EOFException: Unexpected EOF read on the socket

That error was a bummer. I was trying to deploy Dell SRS. When I received error: Transfer failed: IO error during transfer : java.io.EOFException: Unexpected…

Continue Reading