2005 • Bavaria, Germany • Always trying to run things enterprise 😅

I'm a Systems Engineer specializing in Virtualized infrastructure with a strong focus on enterprise environments. I enjoy managing and automating complex systems, running a sophisticated homelab that mirrors enterprise-grade infrastructure.

My homelab is a hands-on playground that closely mirrors enterprise infrastructure. It's been a challenging but rewarding journey—setting up, integrating, and automating all these systems has taught me a lot about troubleshooting, resilience, and real-world IT.

vSphere Cluster:

• 3× Dell R340
• 1× Dell R440
• Total: ~150 GHz CPU, 500 GB RAM, 4 TB vSAN ESA storage
• 3× Huawei Fusion Server 1288H on Standby

Lights Out Management:

• Dell iDRAC9 and OpenManage Enterprise for remote server control

• VMware vSphere with vSAN ESA for hyper-converged storage
• 10+ Red Hat Enterprise Linux 9.5 VMs
• Lifecycle and config managed by Red Hat Satellite 6
• Cloud-init for automated, repeatable VM deployments
• vRealize Operations for Logs for ESXi and vCenter Logging

• PA-820 Next-Gen Firewall
• MikroTik SwOS (CSS326 & CSS610) managed switches
• Arista DCS-7010T48 ToR Switch
• Brocade VDX6740 40 & 10G Interconnect for Inner-Rack DAC
• PHPipam for IP address management

• Docker hosts running 50+ containers across 20 Compose stacks
• Portainer EE for container management
• Traefik as ingress controller and reverse proxy
• Zitadel for authentication
• All HTTPS traffic signed by a private PKI using HashiCorp Vault

• Checkmk for infrastructure monitoring
• Prometheus, Grafana, Jaeger for metrics, dashboards, and tracing

• Technitium DNS Server (primary & secondary)
• Vaultwarden (self-hosted Bitwarden)
• Planka, Wallos, IT-Tools, PWPusher
• GitLab for code and CI/CD

Contributed to the Technitium Server project by improving the installation script, enhancing icu package edge case handling.
TechnitiumSoftware/DnsServer#1248

Red Hat Certified System Administrator | EX200

Feel free to reach out or check out my portfolio website for more about my work and projects:

📧 paul.dresch@untereuerheim.com
🌐 Portfolio Website

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