ITNotes - From Terminal to Cloud

Database Audit Logging: Tracking Every Change in MySQL and PostgreSQL

April 15, 2026

Don't wait for a data breach to start tracking changes. Learn how to set up professional audit logging in MySQL and PostgreSQL to monitor every INSERT, UPDATE, and DELETE.

Linux

Stop Guessing: A Practical Guide to Linux Server Benchmarking

April 15, 2026

Learn how to measure Linux server performance using UnixBench and Phoronix Test Suite. Move beyond marketing specs with real-world CPU, memory, and disk benchmarks.

Beyond Vector Search: Building Knowledge Graphs with Microsoft GraphRAG and Python

April 15, 2026

Tired of shallow AI answers? Discover how Microsoft GraphRAG uses knowledge graphs and the Leiden algorithm to help LLMs understand complex, interconnected datasets. This Python guide shows you how to set up and query a relationship-aware RAG system.

Networking

Boost Linux Network Performance: A Practical Guide to Google BBR

April 15, 2026

Boost your Linux server's network speed by switching from CUBIC to Google's BBR. This guide shows you how to slash latency and maximize throughput on real-world connections.

Security

Linux Server Security Auditing: Automating Hardening with Lynis

April 15, 2026

Discover how to use Lynis to automate Linux security audits. This guide covers installation, interpreting the Hardening Index, and practical steps to secure your kernel and file system permissions.

Programming

Mastering Python Type Hints and Mypy: Lessons from 6 Months in Production

April 15, 2026

Learn how to master Python Type Hints and Mypy through the lens of a 6-month production review. This tutorial covers everything from basic syntax to advanced Protocols and CI/CD integration for cleaner, bug-free code.

Programming

WebAssembly Guide: Running Rust and C at Near-Native Speed in the Browser

April 15, 2026

Discover how WebAssembly (WASM) bridges the gap between low-level performance and web accessibility. Learn to compile Rust and C for the browser and optimize for speed.

Building a Smart Web Scraper with Crawl4AI and Python: A 6-Month Production Review

April 15, 2026

Ditch the fragile CSS selectors. Learn how to build resilient, AI-ready web scrapers using Crawl4AI and Python, based on six months of production data extraction experience.

DevOps

Why Your Unit Tests Aren’t Enough: Mastering Testcontainers for Real-World Integration

April 15, 2026

Ditch the flaky in-memory database tests. Learn how to use Testcontainers to spin up real Docker environments for integration testing, improving reliability and CI/CD speed.

Programming

Stop Fighting Your Environment: A Real-World Guide to VS Code Dev Containers

April 15, 2026

Eliminate 'works on my machine' errors forever. Learn how to build standardized, high-performance development environments using VS Code Dev Containers and Docker.