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 vExpert

2025 vExpert Subprogram Applications Now Open: Expand Your VMware Expertise

Calling all VMware vExperts and virtualization pros! VMware has officially opened applications for the 2025 vExpert subprograms, inviting the community’s most passionate contributors to specialize…

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Posted in Aria

Step-by-Step: Configuring a Custom Certificate for VMware Aria Operations

📁 Step 1: Generate a Certificate Signing Request (CSR) mkdir /cert && cd /cert vi /cert/aops.cnf For a 3-node cluster, the file should contain: Replace…

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Posted in ESXi

You Won’t Believe It: VMware’s Powerful vSphere Hypervisor 8 Is Now Totally FREE!

Have you ever dreamed of harnessing VMware’s top-notch virtualization technology without breaking the bank? Well, the dream just became reality! Broadcom has just unleashed VMware…

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Posted in PowerShell

Automate Your Virtual Infrastructure Management: A Handy PowerCLI Script for On-Call Situations

Imagine a scenario where a power outage or building power-up event causes your ESXi hosts to remain in maintenance mode. Instead of waking up the…

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Posted in Uncategorized Virtualization

How to Install Apache CloudStack – Step-by-Step Guide

Apache CloudStack is a powerful open-source cloud management platform used to deploy and manage large networks of virtual machines. In this guide, we’ll walk through…

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Posted in Virtualization

How to get Home Lab Licenses to run either vSphere Standard Edition or VCF

VMUG Advantage is a membership program designed for VMware enthusiasts and IT professionals seeking cost-effective access to training, discounts on certifications, and extended license durations…

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Posted in Security Advisory

VMware Aria Operations 8.18 HF5: Enhancing Performance, Closing Security Gaps

VMware has recently released VMware Aria Operations 8.18 Patch 5, a crucial update aimed at enhancing stability, security, and functionality within Aria Operations environments. This…

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Posted in Security Advisory

VMware Releases Critical Security Updates for ESXi, Workstation, and Fusion (VMSA-2025-0004)

VMware has released critical and important security patches for VMware ESXi, VMware Workstation, and VMware Fusion to remediate multiple vulnerabilities (CVE-2025-22224, CVE-2025-22225, CVE-2025-22226). These issues…

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Posted in Virtualization

How to Configure Networking in Photon OS from the Command Line

Changing the Hostname To retrieve the current system hostname: netmgr hostname –get To set a new hostname: netmgr hostname –set –name <hostname> Configuring DNS Servers…

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Posted in Uncategorized

Chinese LLM DeepSeek’s Database Exposed Online – What Went Wrong?

Cybersecurity researchers recently discovered a serious misconfiguration in the infrastructure of DeepSeek, a Chinese AI startup known for its powerful language models. The issue? An…

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