Linux operations
- 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.
- 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.
- 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.
- DNS check after migration
A compact operational checklist for verifying DNS behavior after moving a service, zone or reverse proxy target.
- DNS checks after moving a service
A practical sequence for checking DNS, redirects and TLS after moving a service or reverse proxy target.