ITNotes - Page 3 of 25 - From Terminal to Cloud

Database Monitoring with Prometheus & Grafana: A No-Nonsense Guide

April 3, 2026

Tired of 2 AM outages? Learn to build a professional database monitoring stack using Prometheus and Grafana. This guide covers exporter setup, critical metrics, and production-ready alerting.

Security

Hardening Ubuntu: Using AppArmor to Sandbox Applications

April 3, 2026

Secure your Ubuntu server with AppArmor. This guide walks you through creating custom profiles, using complain mode for testing, and enforcing kernel-level application sandboxing.

Security

Watching the Hackers: Building an SSH Honeypot with Cowrie

April 3, 2026

I ran an SSH honeypot for six months and captured 50GB of logs. Here is how you can use Cowrie to monitor real-world attackers and improve your Linux security.

Programming

TypeScript for Beginners: Stop Guessing and Start Writing Safer Code

April 3, 2026

Tired of 'undefined' errors? Learn how to transition from JavaScript to TypeScript with this practical guide on interfaces, union types, and strict configurations.

Networking

Benchmarking Linux Network Performance: A Practical Guide to iperf3 and mtr

April 3, 2026

Tired of vague network complaints? Learn to use iperf3 and mtr to pinpoint bottlenecks, measure throughput, and analyze packet loss like a pro.

HomeLab

Stop Juggling Scripts: Install Pterodactyl Panel on Ubuntu for Professional Game Hosting

April 3, 2026

Is manual game server management holding your HomeLab back? Learn how to deploy Pterodactyl on Ubuntu for professional, containerized game hosting.

Security

Secure Data Deletion on Linux: Why ‘rm’ Isn’t Enough and How to Fix It

April 2, 2026

Think 'rm' deletes your files? Think again. Discover how to use shred, wipe, and dd to permanently erase sensitive data on Linux and why SSDs require a different approach.

Networking

6 Months of Encrypted DNS on Linux: My Real-World Take on DoT and DoH

April 2, 2026

Secure your Linux DNS queries with DoT and DoH. This guide provides a 6-month review of production performance, including step-by-step setups for systemd-resolved and cloudflared.

Programming

Stop Writing Manual API Docs: Automate with Swagger and Express

April 2, 2026

Stop wasting time on manual README updates. Learn how to use Swagger UI and OpenAPI to generate live, interactive API documentation directly from your Express.js code.

Self-Hosting Email with Mailcow: A 6-Month Production Reality Check

OLAP vs OLTP: Why Your Analytical Queries are Killing Production

Self-Host Your Own ChatGPT: A Pro Guide to Open WebUI and Docker

Ditch the VM Weight: High-Performance Container Management with LXC/LXD

Zustand vs Redux: Managing React State After 6 Months in Production

Python Decorators: Slashing Boilerplate with Logging and Auth

Ditch the Filing Cabinet: Self-Hosting Paperless-ngx on Docker

Kubernetes Resilience: Hardening Your Cluster with Chaos Mesh

n8n + AI: Scaling Production-Grade Automation Without the Code Bloat

Build a Private Speed Test Server with LibreSpeed and Docker

Database Monitoring with Prometheus & Grafana: A No-Nonsense Guide

Hardening Ubuntu: Using AppArmor to Sandbox Applications

Watching the Hackers: Building an SSH Honeypot with Cowrie

TypeScript for Beginners: Stop Guessing and Start Writing Safer Code

Benchmarking Linux Network Performance: A Practical Guide to iperf3 and mtr

Stop Juggling Scripts: Install Pterodactyl Panel on Ubuntu for Professional Game Hosting

Secure Data Deletion on Linux: Why ‘rm’ Isn’t Enough and How to Fix It

6 Months of Encrypted DNS on Linux: My Real-World Take on DoT and DoH

Stop Writing Manual API Docs: Automate with Swagger and Express