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Networking tutorial - IT technology blog

Stop Juggling Ports: Automate Docker Traffic with Traefik and Let’s Encrypt

March 30, 2026

Say goodbye to manual Nginx updates. This guide shows you how to set up Traefik for Docker, enabling automatic SSL and dynamic routing through simple container labels.

Security

Linux File Integrity Monitoring: Catching Stealthy Changes with AIDE

March 30, 2026

Learn how to use AIDE (Advanced Intrusion Detection Environment) for File Integrity Monitoring on Linux. This guide covers setting up a baseline database, detecting unauthorized changes, and automating security reports.

Programming

Scaling Node.js: High-Performance Async/Await and Event Loop Management

March 30, 2026

Master high-performance Node.js development with this guide to Async/Await. Learn how to optimize the Event Loop, use parallel execution patterns, and handle CPU-heavy tasks.

HomeLab

VLANs for HomeLabs: Stop Letting Your Smart Fridge Talk to Your Servers

March 30, 2026

Is your HomeLab a security risk? Learn how to use VLANs and 802.1Q tagging to isolate experimental servers and IoT devices from your personal data.

Security

Hashing vs. Encryption: Why MD5, SHA-256, and Base64 Are Not Interchangeable

March 29, 2026

Don't confuse encoding with security. Learn when to use MD5 for checksums, SHA-256 for integrity, and why Base64 is never a substitute for encryption.

DevOps

Stop Hardcoding Passwords: A Guide to Secret Management in CI/CD and Kubernetes

March 29, 2026

Hardcoded passwords are a ticking time bomb. This guide explores professional secret management using HashiCorp Vault, AWS Secrets Manager, and Kubernetes injection patterns to secure your infrastructure.

Networking

Dynamic Routing on Linux: A 6-Month FRRouting Production Post-Mortem

March 29, 2026

Is static routing holding your Linux infrastructure back? Discover how we moved to FRRouting to achieve sub-second failover and automated route discovery in a production environment.

Networking

Fixing 2 AM Network Outages: A Guide to CIDR Overlaps and DNS Troubleshooting

March 29, 2026

Production down at 2 AM? Manual IP math is your enemy. This guide covers a real-world troubleshooting workflow using subnet calculators and DNS tools to fix routing conflicts fast and privately.

Programming

The Engineer’s Guide to Markdown: Professional Documentation that Scales

March 29, 2026

Master professional technical documentation with Markdown. Learn how to use documentation-as-code, Mermaid diagrams, and LaTeX math to build better engineering resources.