ITNotes - Page 76 of 119 - From Terminal to Cloud

Programming tutorial - IT technology blog

Stop Fighting Data Validation Bugs: A Deep Dive into Pydantic v2

April 27, 2026

Tired of production crashes caused by dirty data? Learn how Pydantic v2 uses a Rust-powered core to provide lightning-fast, type-safe validation and configuration for modern Python.

Configuring Claude Code: A Guide to the settings.json File

April 26, 2026

Optimize your Claude Code CLI experience by mastering the settings.json file. Learn how to automate command approvals, switch models to save costs, and set custom project instructions.

Security

Hunting Rootkits: A Practical Guide to Linux RAM Forensics with Volatility 3

April 26, 2026

Move beyond basic logs. This practical guide shows you how to use Volatility 3 to capture Linux RAM and uncover the most stealthy rootkits and hidden processes.

HomeLab

Forgejo on Docker: The Lean Way to Self-Host Your Private Git Server

April 26, 2026

Take back control of your source code. Learn how to deploy Forgejo on Docker—a lightweight, private Git server that outruns GitLab and respects your hardware.

DevOps

Ditch Docker Hub Limits: A Production-Grade Guide to Self-Hosting Harbor

April 26, 2026

Stop relying on shared Docker Hub accounts. This guide shows you how to deploy Harbor for production, implement automated Trivy vulnerability scanning, and secure your CI/CD pipeline based on real-world scaling experience.

Database

The Firebase Exit Strategy: Building a Scalable Backend with Supabase and RLS

April 26, 2026

Is your Firebase bill spiraling? Learn why migrating to Supabase offers better data consistency, lower costs, and professional-grade security through PostgreSQL and RLS.

DevOps

Building K8s-Native CI/CD with Tekton: A Hands-On Guide to Tasks and Triggers

April 26, 2026

Is your CI/CD runner a bottleneck? Learn how to build a scalable, Kubernetes-native pipeline using Tekton. This hands-on guide covers installation, reusable Tasks, and event-driven automation.

Database

Deadlock Survival Guide: Detection and Resolution in PostgreSQL vs. MySQL

April 26, 2026

Deadlocks don't have to crash your production database. Learn how PostgreSQL and MySQL handle lock contention differently and how to implement a retry strategy that survives the 2 AM traffic spike.

Networking

VPN Kill Switch on Linux: A 180-Day Production Post-Mortem

April 26, 2026

A deep dive into building a production-grade VPN Kill Switch for Linux. Using iptables and WireGuard, this guide shows you how to prevent IP leaks with kernel-level enforcement.

Linux

Cracking the CPU Bottleneck: A Real-World Guide to Linux Perf

April 26, 2026

Ditch the guesswork. This guide shows you how to use Linux perf to diagnose CPU bottlenecks, capture stack traces, and implement 10x performance wins using real-world engineering examples.

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

Stop Fighting Data Validation Bugs: A Deep Dive into Pydantic v2

Configuring Claude Code: A Guide to the settings.json File

Hunting Rootkits: A Practical Guide to Linux RAM Forensics with Volatility 3

Forgejo on Docker: The Lean Way to Self-Host Your Private Git Server

Ditch Docker Hub Limits: A Production-Grade Guide to Self-Hosting Harbor

The Firebase Exit Strategy: Building a Scalable Backend with Supabase and RLS

Building K8s-Native CI/CD with Tekton: A Hands-On Guide to Tasks and Triggers

Deadlock Survival Guide: Detection and Resolution in PostgreSQL vs. MySQL

VPN Kill Switch on Linux: A 180-Day Production Post-Mortem

Cracking the CPU Bottleneck: A Real-World Guide to Linux Perf