Skip to content
Philipp Elhaus
  • Home
  • Leistungen
  • Showcase
    • Cloud
    • Netzwerk
    • Blockchain
  • Referenzen
  • Blog
  • Stream
  • Shop
    A mix of my professional work & the WTF-Model.
    Powered by Hugo and Github Pages
  • Categories
  • Tags
  • Archives

AI in Infrastructure

  • July 24, 2026
  • Public  
  • AI  
  • Infrastructure  
  • Network  
  • Security  
How studying Microsoft AB-100 and exploring Azure AI Foundry shaped an agent-assisted migration from an EdgeRouter X to a tested Debian gateway for DNS, WireGuard, filtering, monitoring, and security.
Read more...

Agentic Assistance via OpenClaw

  • March 14, 2026
  • Public  
  • Agents  
  • AI  
  • Automation  
  • Security  
Five weeks building a hybrid OpenClaw setup: hardware, local AI services, cloud models, guardrails, skills, and a seven-agent operating model.
Read more...

Implementing DevSecOps

  • December 25, 2025
  • Public  
  • DevOps  
  • Security  
  • Automation  
  • Software Architecture  
Pipeline cleanup, workflow hardening, and a pragmatic DevSecOps setup focused on minimal overhead and effective secret scanning.
Read more...

Cloud Certs & Development

  • June 12, 2025
  • Public  
  • Private  
  • Study  
  • Cloud  
  • DevOps  
  • Security  
Completed AZ-204 and AZ-400 Azure certifications. Shared 350-question prep sets on GitHub. Integrated Azure API Management into the WTF Model project to improve backend abstraction and security. APIM now manages Azure Functions with proper CORS and auth headers.
Read more...

Azure Exploration & Certifications

  • December 23, 2024
  • Public  
  • Private  
  • Study  
  • Cloud  
  • AI  
  • Security  
Completed Azure's AI-900, DP-900, and SC-900 certifications after years of hands-on use. GPT-4o helped deepen service knowledge like Purview, Intune, CosmosDB, etc. Refuse to pursue further certs due to 12-month recert rules. WTF model release coming in 2024.
Read more...

ISO/IEC 27001:2022 Foundation

  • June 24, 2024
  • Private  
  • Study  
  • Security  
  • IT Governance  
Completed ISO/IEC 27001:2022 cert after a short industry project. Gained clarity on how risks, controls, and policies align in ISMS. Studied ~20 hours, passed with 95%. Annex A, CIA triad, and Statement of Applicability were key insights. Recommended for IT governance basics.
Read more...

Network Redesign

  • May 19, 2024
  • Private  
  • Network  
  • Design  
  • Infrastructure  
  • Security  
Redesigned home network with 3 subnets: main, WiFi (with RADIUS), and smart devices. Added 10G/2.5G switch, moved to fiber (10Gtek AOC), and cleaned up static IPs, routes, and .lan DNS. Dropped IPv6. Total cost under €150. Setup is now simpler, faster, and well-structured.
Read more...
© 2024 Philipp Elhaus - Impressum Datenschutz