ITNotes - Page 20 of 142 - From Terminal to Cloud

Kubernetes Cleanup: Using Kube-janitor to Slash Dev and Staging Costs

September 12, 2026

Tired of high cloud bills from idle Kubernetes resources? Learn how to use Kube-janitor to automate the cleanup of temporary namespaces and deployments in Dev and Staging.

Optimize RAG Accuracy with Query Expansion and HyDE: A Practical Guide

September 12, 2026

Struggling with poor RAG results? This guide explains how to use Query Expansion and Hypothetical Document Embeddings (HyDE) to bridge the semantic gap and improve search accuracy in your AI applications.

Security

OpenSSL CLI: Debugging Production HTTPS and Building a Private CA

September 11, 2026

Master the OpenSSL CLI to fix SSL/TLS errors, verify key matches, and build a private Certificate Authority. A practical guide for IT engineers who need results, not just theory.

Database

E-commerce Database Design: Handling Product Variants Without the ‘God Table’ Nightmare

September 11, 2026

Is your e-commerce database slowing down? Learn why 'God Tables' fail and how to implement a high-performance, 5-table schema for product variants and attributes.

Programming

Flet: The Python Developer’s Shortcut to High-Performance Flutter UIs

September 11, 2026

Ditch Tkinter and Electron. Learn how to use Flet to build high-performance, Flutter-powered desktop applications using only Python.

Security

Beyond the Wildcard: Stop CORS Misconfigurations from Leaking User Data

September 11, 2026

CORS misconfigurations are a primary vector for session theft. Learn how to move from dangerous 'Allow-All' setups to a secure, allowlist-based implementation for production APIs.

Security

Beyond the Firewall: Stopping Mass Assignment and IDOR in Modern APIs

September 11, 2026

API security isn't just about encryption. Learn how to defend against Mass Assignment and IDOR attacks using Object-Level Access Control and strict data validation.

Database

Mastering HugePages and Transparent HugePages on Linux for PostgreSQL and Redis

Mitigate DDoS with BGP Flowspec and ExaBGP on Linux: Automated Routing-Level Packet Filtering

Deploy Harbor on Docker: Self-Host a Secure Private Container Registry with Trivy and Image Signing for Your HomeLab

Building a Production-Ready Text-to-SQL Engine with Vanna.ai and Python

Deploy CrowdSec on Linux: Building a Distributed IPS to Block Brute Force and Web Attacks

Route-Based IPsec VPN with strongSwan and VTI on Linux: Secure Cloud-to-On-Premises Connectivity

Automate Kubernetes Troubleshooting with K8sGPT and Local Ollama

Mastering Outlines in Python: Guaranteed Structured LLM Output with Regex and CFGs

Mastering Cursor Rules and Context Mentions: Standardize Architecture Across Your Dev Team

Deploying HashiCorp Vault on Kubernetes: Dynamic Secrets and Sidecar Injector Guide

Kubernetes Cleanup: Using Kube-janitor to Slash Dev and Staging Costs

Optimize RAG Accuracy with Query Expansion and HyDE: A Practical Guide

OpenSSL CLI: Debugging Production HTTPS and Building a Private CA

E-commerce Database Design: Handling Product Variants Without the ‘God Table’ Nightmare

Flet: The Python Developer’s Shortcut to High-Performance Flutter UIs

Beyond the Wildcard: Stop CORS Misconfigurations from Leaking User Data

Beyond the Firewall: Stopping Mass Assignment and IDOR in Modern APIs

PostgreSQL Performance: Speed Up Queries with Covering Indexes

Stop Writing Manual CSS: Build a Local Screenshot-to-Tailwind Tool with Llama 3.2 Vision

Build an AI DBA for PostgreSQL: Automate Slow Query Analysis with DeepSeek-R1