I am a System Engineer working with Linux systems, infrastructure automation, networking and observability. This site documents how I adopt existing services, trace failures across DNS, networking, proxies and applications, and make changes that can be reviewed and rolled back. I also take on selected freelance infrastructure projects.
Articles
- More Than a New Theme: The Controlled Modernization of Relevante Ökonomik
How a website relaunch separated migration, infrastructure renewal, staging acceptance and restore planning while leaving the archive migration for a later step.
- Why I Am Voluntarily Supporting Heiner Flassbeck and Relevante Ökonomik
Why I voluntarily contribute technical infrastructure work to Relevante Ökonomik, and how reliable publishing can support independent economic debate.
- Running SSH securely and reproducibly on WSL2
A practical two-phase rollout for a key-only OpenSSH service on WSL2, including preflight checks, scoped firewall rules, an Ansible role, rollback paths and external acceptance tests.
- Modeling an existing nginx site safely with Ansible
A staged workflow for bringing an already-running nginx site under Ansible without overwriting unreviewed drift or reloading an invalid configuration.
- DNS checks after moving a service
A practical sequence for checking DNS, redirects and TLS after moving a service or reverse proxy target.
Notes
- DNS check after migration
A compact operational checklist for verifying DNS behavior after moving a service, zone or reverse proxy target.
Projects
- OPS Content Platform
How a Rust CLI validates Markdown content, keeps private drafts out of the public build and produces a static website with RSS and a dry-run-first deployment path.
Topics
- Ansible
3 entries
- Automation
6 entries
- Homelab
0 entries
- Linux Operations
6 entries
- Monitoring / Observability
4 entries
- OpenTofu / Terraform
1 entries
- Security-conscious Infrastructure
2 entries