Self-hosted dev & sysadmin resources

Tom's Knowledge Base

Step-by-step Linux tutorials, self-hosted application guides, and practical tools for the modern sysadmin.

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About This Site

Welcome to my personal knowledge base. I document Linux tutorials, self-hosted application setups, and useful tools that I use in my homelab. Whether you're setting up Nginx, securing your server with Certbot, or exploring private AI solutions, you'll find step-by-step guides here. All content is tested on Ubuntu 22.04+.

Linux Tutorials

Master the command line with hands-on guides and real examples.

Linux Commands

Essential Linux commands with interactive examples and visual guides.

Shell Scripting

File management, permissions, and writing your first bash script.

Linux Permissions

Understanding chmod, chown, and the Linux permission model.

Self-Hosted Applications

Step-by-step guides for deploying popular self-hosted services.

Nginx Setup

Quick Nginx setup guide for hosting websites on Ubuntu.

Certbot + Nginx

Secure your Nginx sites with free SSL certificates using Certbot.

Samba Setup

File sharing between Linux and Windows machines with Samba.

Nextcloud (Snap)

Deploy Nextcloud with the official snap package on Ubuntu.

Cockpit

Web-based server management with Cockpit on Ubuntu.

QEMU/KVM

Virtualization with QEMU/KVM on Ubuntu Server.

Blog

Tips, tricks, and troubleshooting

Issues I've encountered and solutions I've found — from Nginx quirks to SSH tips.

Private AI

Run LLMs locally on your own hardware

Set up Ollama, Open WebUI, and explore running large language models privately.

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