Homelab Builds

Practical homelab builds for infrastructure engineers. This is where enterprise skills meet kit you can actually afford. Guides cover mini PC clusters, refurbished Dell and HPE servers, Proxmox hypervisor setups, network segmentation with VLANs, and the power and cooling tradeoffs that matter when you run 24/7 at home. Every build documented here has either sat in a production rack or a real spare bedroom. No theoretical gear lists, no affiliate filler. If you want to learn Kubernetes on a £120 refurbished OptiPlex or run a dozen self-hosted services on a Pi cluster, start here. The homelab is a professional development environment, and this is how we treat it.

SSH Configuration Guide: Ports, Keys, and Security Hardening

SSH Configuration Guide: Ports, Keys, and Security Hardening

Linux Fundamentals /

SSH is how you manage every Linux server. If someone compromises your SSH access, they own the machine. Getting SSH configuration right is not optional — it is the foundation of server security. This guide covers practical SSH configuration: key-based authentication, port changes, client config, tunnelling, and the hardening steps that protect production servers. Part […]

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Linux File Permissions Explained: chmod, chown, and the Permission Calculator

Linux File Permissions Explained: chmod, chown, and the Permission Calculator

Linux Fundamentals /

“Permission denied.” The two words every Linux user learns to hate. But file permissions are not a barrier — they are the security model that protects everything on a Linux system. This guide explains how Linux permissions work, how to read them, how to change them, and the common permission sets you will use every

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How to Remove Files and Directories in Linux (rm, rmdir, find)

How to Remove Files and Directories in Linux (rm, rmdir, find)

Linux Fundamentals /

Deleting files in Linux is permanent. There is no recycle bin, no undo, no “are you sure?” prompt by default. One wrong command and production data disappears. This guide covers every method for removing files and directories, from the safe basics to the dangerous power tools, with clear warnings about what can go wrong. Part

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