Category: System Admin

29 October 2025
Troubleshooting Proxmox crash loops

If you face Proxmox crashes and restart loops, start with logs and check your hardware. Gather exact kernel messages and timestamps. Test RAM and PSU, boot an older kernel and run memtest86 and stress tests. Document results and monitor for 24 to 72 hours.

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28 October 2025
Mitigating VM downtime after Proxmox host migration

Proxmox VM migration can leave services unreachable. Switches may hold old MAC or ARP entries. Use these checks and fixes to restore your access fast. Flush ARP and bridge FDB entries. Send gratuitous ARP from the VM or host. Clear the switch MAC table. Test connectivity and monitor for repeats.

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28 October 2025
Choosing between Proxmox and ESXi for virtual machines

Choosing between Proxmox and ESXi for virtual machines I built an SFF PC homelab and ran an ESXi box for eight years without a hypervisor crash. Now I am choosing between Proxmox and ESXi for a new SFF PC that will run about ten virtual machines, including WordPress, WireGuard, Home Assistant and a large personal […]

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27 October 2025
Creating a Telegram bot for Proxmox notifications

Learn how to set up Telegram alerts for your Proxmox cluster with this step-by-step guide. Get real-time notifications and optimize monitoring effortlessly!

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25 October 2025
Building a multi-boot USB with Ventoy and Linux

Unlock the power of your homelab by creating a versatile Ventoy USB drive. This guide walks you through hardware selection, setup, and testing for multi-boot functionality.

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4 October 2025
Setting up reliable notifications for klaxon alerts

Learn how to set up a reliable alarm klaxon notification system that avoids sound detection challenges. By sensing the klaxon's power state, you can ensure accurate alerts. Explore various detection methods and smart home technologies, including Z-Wave and microcontrollers, to create a customised, efficient notification system tailored to your home...

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27 September 2025
Understanding boot sequences in BIOS and UEFI

Explore the key differences between BIOS and UEFI in this concise guide. Understand the boot sequences crucial for installing Linux Mint, and learn practical tips for troubleshooting common issues. Equip yourself with the knowledge to navigate firmware settings, from initialisation to bootloaders, ensuring a smooth installation experience without...

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15 September 2025
Steps for a successful Proxmox VE 9 upgrade

Upgrading Proxmox VE on Older Hardware: A Practical Guide Proxmox VE 9 upgrade Overview of Proxmox VE 9 features Proxmox VE 9 brings newer kernels, updated

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13 September 2025
Installing your first Linux system

Setting Up First Linux Distro: Best Practices I’ll assume you want a clean, reliable start. This guide is a practical primer for setting up Linux. I keep it

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12 September 2025
Customising your Arch Linux desktop environment

Customising Arch Linux: A Beginner's Guide to customising Arch Linux I’ll be blunt. Arch is a toolkit, not a finished desktop. That makes it ideal if you want

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12 September 2025
Installing Windows 11 alongside Linux

Setting Up Dual Boot: A Step - by - Step Approach for Linux and dual boot Dual boot means running two operating systems on one machine and choosing which to

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11 September 2025
Setting up a dual boot with Windows and Linux

Choosing the Right Linux Distribution for Daily Use: A Linux distribution Picking a Linux distribution for daily use is about trade offs. I focus on stability,

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11 September 2025
Keeping Linux package managers under control

Optimising Linux Environment: Integrating Various Package I manage a handful of Linux machines with different package managers. Some run apt, others use dnf,

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6 September 2025
Scaling an Application with Docker Compose

Here’s What I Discovered When Scaling My Application with Docker Compose ## What you'll build: docker-compose ### Overview of the application In this guide, I

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5 September 2025
How I Tested Ceph Configuration Changes Without Full Replication

Learn to test Ceph configurations safely without full replication and ensure high availability.

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3 September 2025
OPNsense Boot Freezes on Mini PCs

Discover 5 startling facts about OPNsense boot freezes on Mini PCs and how to tackle them for a smoother experience.

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2 September 2025
The Future of Ceph Configuration Testing

Discover essential predictions for testing Ceph configurations in Proxmox VMs to prevent data loss and enhance performance.

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2 September 2025
The Hidden Truth Behind Ceph OSD Migration: What You're Doing Wrong

Learn the hidden truths and best practices for Ceph OSD migration on Proxmox to enhance performance and minimize downtime.

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14 August 2025
Understanding K3s: A Lightweight Kubernetes Distribution for Edge, IoT, and CI/CD Environments

Discover K3s, the lightweight Kubernetes distribution ideal for edge computing, IoT, and small clusters. Learn about its benefits, architecture, and ideal use cases.

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13 August 2025
Essential Tips for Enhancing Your WSL Experience

Practical tips to enhance your WSL experience: performance, .wslconfig, Windows integration, Zsh and VS Code in WSL.

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17 March 2025
How I Streamlined My Development Workflow with Docker Compose

Unlocking efficient development is easy with Docker Compose. In this guide, discover how to streamline your workflow, enhance collaboration, and simplify local environments.

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25 October 2024
Configuring Apache2 and PHP on a Fresh Installation

Setting up Apache2 with PHP on a Debian-based server is crucial for hosting websites or applications. Follow these steps for a smooth configuration.

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6 September 2024
A Step-by-Step Guide to Removing Cached Credentials in Windows 10 and Windows 11

Learn how to remove cached credentials on Windows 10 and 11 to enhance security and resolve login issues with this comprehensive guide for IT professionals.

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19 July 2024
The Global IT Outage: A Look at the Chaos and the Need for Diversified Tech Solutions

Planes grounded, trains delayed, banks offline – it’s like the tech world decided to have a collective nap, leaving us all in the lurch.

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2 February 2024
Advanced Linux System Administration: Tips and Tricks

Linux system administration requires a deep understanding of the operating system and the various tools available to manage it effectively.

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