ITNotes - Page 13 of 142 - From Terminal to Cloud

Mastering nftables on Linux: Building a Modern Stateful Firewall to Replace iptables

October 6, 2026

A production-tested guide to replacing iptables with nftables on Linux. Learn how to configure unified IPv4/IPv6 filtering, rate limiting, and atomic zero-downtime rule updates.

DevOps

Container Image Signing and Verification with Cosign (Sigstore) in Kubernetes: A 6-Month Production Review

October 5, 2026

A practical 6-month review of signing container images with Cosign and Sigstore across 45+ Kubernetes microservices. Compare Notary vs Cosign, avoid registry cleanup pitfalls, and enforce image validation with Kyverno.

Database

Deploying Qdrant on Docker: A 6-Month Production Review for RAG and Semantic Search

October 5, 2026

A hands-on production review of running Qdrant on Docker for 20M+ embeddings. Includes Docker Compose templates, scalar quantization benchmarks, gRPC tuning, and Prometheus monitoring configs.

Database

Scaling PostgreSQL for Time-Series Data with TimescaleDB: A 6-Month Production Review

October 5, 2026

Struggling with slow time-series queries and index bloat in PostgreSQL? Here is how we migrated 1.2 billion IoT records to TimescaleDB, cut write latency from 450ms to 6ms, and reduced disk usage by 87%.

Automating JavaScript to TypeScript Migration with AST and LLMs: A Safe Pipeline for Large Codebases

October 5, 2026

Migrating large JavaScript repositories to TypeScript often fails when teams rely solely on codemods or pure LLM generation. This guide details a battle-tested hybrid pipeline that combines deterministic AST transformations with targeted LLM type inference for zero-regression migrations.

Security

Deploying Wazuh SIEM and XDR on Linux: Centralized Security and Active Response

October 5, 2026

Learn how to deploy a centralized Wazuh SIEM and XDR platform on Linux. Follow this practical guide to install the central manager, enroll agents, configure File Integrity Monitoring, and automate threat mitigation with Active Response.

DevOps

Deploying Talos Linux for Kubernetes: Secure and Minimal Immutable OS

October 5, 2026

Learn how to deploy and manage Talos Linux for Kubernetes. This step-by-step guide covers generating machine configurations, bootstrapping nodes via talosctl, and securing container infrastructure with an immutable, minimal OS.

Programming

Build Ultra-Fast REST APIs with Bun and ElysiaJS: Type-Safe Validation, Eden Treaty, and Production Deployment

October 5, 2026

A step-by-step tutorial on building high-performance REST APIs using Bun and ElysiaJS. Learn how to configure runtime validation with TypeBox, share end-to-end types with Eden Treaty, and deploy with Docker.

DevOps

Chaos Engineering on Kubernetes with Chaos Mesh: Hands-On Fault Injection Guide

October 5, 2026

Learn how to practice Chaos Engineering on Kubernetes using Chaos Mesh. This hands-on tutorial covers setting up fault injection, simulating network latency and pod crashes, and verifying microservice resilience.

HomeLab

Deploy FileBrowser on Docker: Lightweight Web File Manager for Your HomeLab

October 5, 2026

Deploy FileBrowser on Docker to get a high-speed, lightweight web file manager for your HomeLab. Includes practical permission setups and emergency CLI recovery steps.

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

Deploying WPA3-Enterprise with FreeRADIUS and EAP-TLS: Mutual PKI Authentication Guide

Mastering nftables on Linux: Building a Modern Stateful Firewall to Replace iptables

Container Image Signing and Verification with Cosign (Sigstore) in Kubernetes: A 6-Month Production Review

Deploying Qdrant on Docker: A 6-Month Production Review for RAG and Semantic Search

Scaling PostgreSQL for Time-Series Data with TimescaleDB: A 6-Month Production Review

Automating JavaScript to TypeScript Migration with AST and LLMs: A Safe Pipeline for Large Codebases

Deploying Wazuh SIEM and XDR on Linux: Centralized Security and Active Response

Deploying Talos Linux for Kubernetes: Secure and Minimal Immutable OS

Build Ultra-Fast REST APIs with Bun and ElysiaJS: Type-Safe Validation, Eden Treaty, and Production Deployment

Chaos Engineering on Kubernetes with Chaos Mesh: Hands-On Fault Injection Guide

Deploy FileBrowser on Docker: Lightweight Web File Manager for Your HomeLab