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 designing and automating complex systems, and I run a sophisticated homelab that mirrors enterprise-grade infrastructure a rewarding hands-on playground for learning resilience, troubleshooting, and real-world infrastructure challenges.
vSphere Cluster:
- 4× Dell PowerEdge R340
- 1× Dell PowerEdge R440
- Compute + Storage: ~150 GHz Intel Xeon Gold, 700 GB RAM, 6 TB vSAN ESA all-flash storage
- Standby: 3× Huawei Fusion Server 1288H
- Management: Dell iDRAC9 & OpenManage Enterprise
- VMware vSphere with vSAN ESA (hyper-converged storage)
- 10+ Red Hat Enterprise Linux 9.6/10 VMs
- Red Hat Satellite 6 for lifecycle and configuration management
- Cloud-init with vSphere for automated, repeatable VM deployments
- Aria Operations for Logs for ESXi and vCenter logging
- Aria Operations for VM rightsizing and predictive DRS
- PA-820 Next-Gen Firewall with default-deny policy
- Network segmented into 4 VLANs with inter-zone traffic controlled via Palo Alto App-IDs
- Arista Fabric:
- DCS-7010T: 48× 1GbE access (servers, mgmt) + 4× 10G uplinks
- DCS-7150S: 48× 10GbE with 2× 10G LAG per ESXi + 40G breakout to 4× 10G uplinks
- MikroTik SwOS (CSS326 & CSS610) managed switches
- PHPipam for IP address management
- 50+ containers across 20 Docker Compose stacks
- Portainer EE for container management
- Traefik as ingress controller and reverse proxy
- HashiCorp Vault for private PKI (all HTTPS traffic signed)
- Checkmk for infrastructure monitoring
- Prometheus, Grafana, Jaeger for metrics, dashboards, and distributed tracing
- Technitium DNS Server (primary & secondary)
- Vaultwarden (self-hosted Bitwarden)
- GitLab EE (containerized for code & CI/CD)
Technitium DNS Server – Improved installation script and ICU package edge-case handling
TechnitiumSoftware/DnsServer#1248
Red Hat Certified System Administrator | EX200
Email: paul.dresch@untereuerheim.com
Portfolio: https://pd-portfolio.net
Thanks for stopping by!