(01) The problem
Teams in Germany and the US relied on servers that had grown messily over time — single machines doing too much, admin panels reachable from the internet, and backups no one had tested.
(02) What I did
- Moved workloads onto Proxmox clusters that fail over automatically
- Hardened the Linux and Windows servers and closed every public admin port
- Gave staff private access through Tailscale and enterprise VPNs
- Put public sites behind Cloudflare
- Set up encrypted, automatic off-site backups — and tested restoring them
(03) How it turned out
As Head of IT at XXL Marketing (2024 – 2025) I kept dedicated servers and networks at 99.9% uptime. For UD Staffing (2025) I designed and deployed the company’s IT infrastructure. The same approach runs across the 20+ companies I manage as a network specialist.
Proxmox VELinuxWindows ServerTailscaleCloudflareBackups