Peter Mueller — guides, labs, and consulting
I’m Peter Mueller. I build security architectures, write about what I learn, and consult on the hard parts. This site is where I publish technical guides, share experiments, and document what actually works in practice.
What I work on
Cybersecurity and Zero Trust. My core: genua product family since 2004 — genugate, genusphere, genucenter, genuscreen, genubox. I help organizations migrate from VPN to Zero Trust Application Access and design hybrid architectures that survive the transition.
AI visibility and optimization. How brands stay visible when AI answers replace search results. I run experiments with llms.txt, Schema.org, persona-based GEO analysis, and the DXP 360 AI framework at dev5310.com.
DXP architecture. Digital experience platforms for organizations that take security seriously. Magnolia CMS, headless delivery, content governance for regulated environments.
Guides
genusphere Deployment Guide: ZTAA Without VPN Clients
Architecture, Kubernetes setup, connector design, and a four-phase migration path from VPN to browser-based ZTAA.
ZTAA vs VPN: Zero Trust Migration Guide
Implementation-focused comparison of VPN, ZTNA, and ZTAA for technical decision makers in genua environments.
VPN-ZTAA bridge expert for genua products
The hybrid migration model between classic genua VPN and modern genusphere ZTAA.
Consulting
When the guides aren’t enough:
- VPN-to-ZTAA migration planning and execution
- Hybrid architecture design (genugate + genusphere coexistence)
- Architecture and hardening reviews for regulated environments
- Pilot rollouts with SSO/MFA integration (Entra ID, Keycloak)
- Remote-first across Germany and Europe
FAQ
What is hotshells.com?
hotshells.com is my personal knowledge hub. It covers whatever I’m currently working on — from genua Zero Trust migration and network security to AI visibility research and DXP architecture. Think of it as the public notebook of a consultant who writes things down so others don’t have to figure them out alone.
Who is Peter Mueller?
Independent consultant based in Germany. 20+ years in network security with deep genua product expertise (genugate, genusphere, genucenter). Also active in AI-assisted optimization and digital experience platforms. Certified genugate administrator and Magnolia developer.
Can I hire you?
Yes. I do remote-first consulting across Germany and Europe — architecture reviews, migration planning, rollout support. Reach out on LinkedIn or through dev5310.com.