tutorial - ITNotes

Building a Private Docker Registry on Your HomeLab: Host & Manage Your Own Docker Images

March 27, 2026

Learn to set up your own private Docker Registry on your HomeLab. This tutorial covers everything from basic setup to securing it with HTTPS and authentication, based on 6 months of real-world usage. Gain full control, improve local network speeds, and enhance the security of your Docker image management.

AI Agents: What They Are & How to Build Your First Automated Workflow

March 24, 2026

AI agents are changing how we automate complex IT tasks, using large language models (LLMs) with specialized tools and advanced reasoning. This tutorial shows you how to build your first agent with Python and LangChain, covering environment setup, configuration, and key monitoring techniques.

Programming

Go for Beginners: Building Fast, Efficient RESTful APIs

March 23, 2026

Learn to build robust and efficient RESTful APIs using Go. This guide, informed by real-world production usage, takes you through key steps from initial setup to ongoing monitoring.

Linux

Boost Network Performance: Setting Up a Local DNS Server on Linux with Dnsmasq

March 22, 2026

This guide helps you set up a local Dnsmasq DNS server on Linux for improved network performance and straightforward internal domain management. It covers installation, configuration, and integration, offering a lightweight alternative to complex DNS solutions.

HomeLab

Jellyfin Media Server: Your Self-Hosted Home Entertainment Hub

March 17, 2026

Ever wanted your own Netflix or Spotify, but with content you control? Jellyfin lets you build a powerful, self-hosted media server for all your movies, music, and TV shows. This guide covers setup, advanced features, and troubleshooting for your HomeLab.

Mastering AI Image Generation: Midjourney, DALL-E, and Stable Diffusion Compared

March 17, 2026

This article compares Midjourney, DALL-E, and Stable Diffusion, offering a practical guide to AI image generation. It covers quick starts, deep dives into their strengths and weaknesses, advanced techniques, and practical tips from a production engineer's perspective, emphasizing skill mastery in this evolving field.

Database

MongoDB: Getting Started with Document Databases

March 16, 2026

Explore MongoDB, the popular NoSQL document database. This guide covers installation on Linux and macOS, essential configuration, and basic data operations. Start building with flexible data storage today.

Database

Redis: Supercharge Your Application with In-Memory Caching

March 16, 2026

Curious how Redis drastically boosts application performance? This beginner-friendly guide walks you through installation, core concepts, and practical ways to use in-memory caching. Learn to set up Redis quickly, integrate it with Python, and discover its powerful data structures and advanced features like persistence and Pub/Sub messaging.

OpenAI API Tutorial: Building Your First AI Application Without the 2 AM Panic

March 16, 2026

Ever faced a 2 AM crisis with your first AI app? This OpenAI API tutorial guides you through crucial setup, secure authentication, and practical Python code. Build a stable AI application, avoid common pitfalls, and achieve smooth deployments.

Linux

How to Configure a Samba File Server on Linux for Cross-Platform File Sharing

March 14, 2026

Discover how to set up a Samba file server on Linux for robust file sharing among Windows, macOS, and Linux clients. This comprehensive guide details installation, configuring public and secure shares, and essential verification steps to ensure network-wide access to your files.