ITNotes - Page 97 of 119 - From Terminal to Cloud

Ditch the USB Drives: A Netboot.xyz Guide for the Ultimate HomeLab PXE Setup

April 3, 2026

Stop flashing USB sticks. Learn how to deploy Netboot.xyz with Docker and PXE boot to install any operating system over your HomeLab network in minutes.

Database

How to Read Execution Plans: Solving the ‘Slow Query’ Mystery in Postgres and MySQL

April 3, 2026

Is your SQL crawling? Stop guessing and start reading Execution Plans. This guide shows you how to use EXPLAIN in PostgreSQL and MySQL to pinpoint bottlenecks like sequential scans and manual file sorts.

Database

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.

Speed Up Python with Numba JIT: Make Heavy Data Processing 100x Faster

CDK for Terraform (CDKTF) with Python: Deploy Cloud Resources Without Writing HCL

Clean Up Your Java Code: A Practical Guide to Vavr

Stop Deploying Broken Docker Images: A Guide to Container Structure Tests

Mastering Golang Memory Profiling: A Practical Guide with pprof

Stop Storing Secrets in Git: A Guide to 1Password Connect on Kubernetes

Building a Network Performance Testbed: High-Speed Testing with TRex on Linux

Stop Writing Boilerplate: A Guide to Python Dataclasses, Attrs, and Pydantic

Build Your Own Private 5G Network: A Hands-On Guide with Open5GS and srsRAN

Mastering Socket.IO in Node.js: Building Secure, Production-Ready Real-Time Apps

Ditch the USB Drives: A Netboot.xyz Guide for the Ultimate HomeLab PXE Setup

How to Read Execution Plans: Solving the ‘Slow Query’ Mystery in Postgres and MySQL

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