ITNotes - Page 16 of 142 - From Terminal to Cloud

Securing Your HomeLab with CrowdSec on Docker: Collaborative Intrusion Prevention

October 2, 2026

Secure your self-hosted services by running CrowdSec in Docker. This step-by-step guide shows how to parse proxy logs, connect community threat feeds, and block attackers at the host firewall level.

Database

PostgreSQL pgvector Tutorial: Storing Embeddings and Building Fast Semantic Search

October 2, 2026

Eliminate sync lag and extra infrastructure by moving semantic search into PostgreSQL. Learn how to store embeddings with pgvector, configure HNSW indexes for sub-10ms response times, and implement production-ready hybrid search.

DevOps

Deploying Trivy Operator on Kubernetes: Automated Vulnerability Scanning and CIS Compliance

October 2, 2026

CI/CD scanning cannot protect running pods when zero-day vulnerabilities emerge weeks after deployment. Learn how to install and configure Trivy Operator for continuous vulnerability scanning, configuration auditing, and automated CIS compliance.

Networking

Detect and Prevent ARP Spoofing with Arpwatch and Dynamic ARP Inspection

October 2, 2026

Secure your internal Layer 2 network against ARP poisoning attacks. This tutorial covers passive monitoring with Arpwatch on Linux and active mitigation using Dynamic ARP Inspection and DHCP Snooping on managed switches.

Programming

Building a Distributed Task Queue with BullMQ, Redis, and TypeScript

October 2, 2026

Offloading heavy workloads requires a resilient queuing architecture. This guide covers how to build a production-grade distributed task queue using BullMQ, Redis, and TypeScript, complete with exponential retries and dead-letter queues.

Programming

Consumer-Driven Contract Testing with Pact and TypeScript: A Practical Guide

October 2, 2026

Learn how to implement Consumer-Driven Contract Testing using Pact and TypeScript. Bridge the gap between frontend apps and backend microservices with automated contract verification in your CI/CD pipeline.

Programming

Real-Time Data Streaming with Server-Sent Events (SSE) and Go: Concurrency & High-Throughput Pipelines

October 2, 2026

Learn how to build a high-performance real-time data streaming pipeline using Server-Sent Events (SSE) and Go. This tutorial covers thread-safe client management, broker patterns, and low-latency data flushing.

HomeLab

Deploy a Local AI Server with Ollama and Open WebUI on Docker: Self-Hosted RAG and Web Search

October 2, 2026

Build a self-hosted AI server using Ollama, Open WebUI, and SearXNG on Docker. Complete guide with GPU passthrough, local RAG document ingestion, and private web search.

DevOps

Event-Driven Autoscaling with KEDA on Kubernetes: Scale Pods on RabbitMQ, Kafka, and AWS SQS

October 2, 2026

Learn how to configure KEDA on Kubernetes to automatically scale worker Pods based on message queue depth in RabbitMQ, Apache Kafka, and AWS SQS. Complete with production-grade manifests and optimization tips.

Linux

Securing Linux Servers with AppArmor: Custom Profiles and Sandboxing Guide

October 2, 2026

A practical field guide to sandboxing production Linux services with AppArmor. Compare MAC architectures, build custom profiles with aa-genprof, and stop privilege escalation attacks cold.

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

Securing Your HomeLab with CrowdSec on Docker: Collaborative Intrusion Prevention

PostgreSQL pgvector Tutorial: Storing Embeddings and Building Fast Semantic Search

Deploying Trivy Operator on Kubernetes: Automated Vulnerability Scanning and CIS Compliance

Detect and Prevent ARP Spoofing with Arpwatch and Dynamic ARP Inspection

Building a Distributed Task Queue with BullMQ, Redis, and TypeScript

Consumer-Driven Contract Testing with Pact and TypeScript: A Practical Guide

Real-Time Data Streaming with Server-Sent Events (SSE) and Go: Concurrency & High-Throughput Pipelines

Deploy a Local AI Server with Ollama and Open WebUI on Docker: Self-Hosted RAG and Web Search

Event-Driven Autoscaling with KEDA on Kubernetes: Scale Pods on RabbitMQ, Kafka, and AWS SQS

Securing Linux Servers with AppArmor: Custom Profiles and Sandboxing Guide