kuepper.nrw valid
Küpper Blog
Tech Blog - DevOps, Kubernetes, Self-Hosted
For agents: German personal tech blog by Rüdiger Küpper on DevOps, Kubernetes, self-hosting, Traefik, and mail server topics such as Postfix and rspamd.
kubernetesdevopsself-hostedtraefikpostfix rspamd
- Authority
- 50 reach 0 · trust 10 · quality 25 · freshness 15
- Tier
- listed
- llms.txt
- https://blog.kuepper.nrw/llms.txt
- llms-full.txt
- https://blog.kuepper.nrw/llms-full.txt
- Sections
- 3
- Links
- 158
- Size
- 42338 bytes
- Registered
- 2016-01-24
- Country
- Germany Hosting inference
- Hosting country
- Germany Hosting inference
- Country evidence
- No published address evidence collected yet
- Categories
- Infrastructure · Personal sites and blogs
- For agents
- Documentation: developer or product docs worth reading, nothing to call
- Inferred actions
- Search content About these labels
- Audience
- developers · agents can: search content · de
- First seen
- 2026-10-24T04:06:09.738Z
- Last checked
- 2026-10-24T04:06:10.164Z
- Badge
Their llms.txt
The beginning of the file, from our validated copy saved 2026-10-24T04:06:09.752Z. Cached copy · Source on kuepper.nrw
# Küpper Blog
> Tech Blog - DevOps, Kubernetes, Self-Hosted
Author: Rüdiger Küpper
Site: https://blog.kuepper.nrw
Diese Datei folgt der llms.txt-Konvention (https://llmstxt.org/) und listet alle Inhalte des Blogs, damit Sprachmodelle sie effizient finden und einordnen können. Die vollständigen Texte liegen unter https://blog.kuepper.nrw/llms-full.txt.
## Blogposts
- [3 Monate Spam-Mails -> Claude -> Postfix/rspamd-Regeln](https://blog.kuepper.nrw/posts/2026-10-20-3-Monate-Spam-Mails-Claude-Postfix-rspamd-Regeln/) — Nach drei Monaten kann man mal kurz ein Resümee ziehen, wie es bis jetzt gelaufen ist. (2026-10-20)
- [Domain-Redirects mit Traefik-Boardmitteln statt eigenem Service](https://blog.kuepper.nrw/posts/2026-08-12-Domain-Redirects-mit-Traefik-Boardmitteln-statt-eigenem-Service/) — Für ein gutes Dutzend Domains, die einfach nur auf eine andere Zieldomain umleiten sollen, lief bei mir bisher ein eigener kleiner Redirect-Service im Cluster, ein schlanker Container, der nichts weiter tat, als eingehende Requests per HTTP-Redirect auf die richtige Zieldomain umzubiegen. (2026-08-12)
- [mDNS-Namenskonflikts, Schuld war eigener Komfort](https://blog.kuepper.nrw/posts/2026-07-20-mdns-namenskonflikts-schuld-war-eigener-komfort/) — Schuld war mein eigener Komfort: der mDNS-Proxy im Gateway, damit HomeKit-Geräte über VLAN-Grenzen hinweg gefunden werden. (2026-07-18)
- [Postfix/rspamd-Regeln aus Spam-Mails mit AI statt Handarbeit](https://blog.kuepper.nrw/posts/2026-07-18-postfix-regeln-aus-spam-mails-mit-ai-statt-handarbeit/) — `header_checks` ist eine Postfix-Funktion, mit der jede einzelne Header-Zeile einer Mail gegen eine Liste von regulären Ausdrücken geprüft wird. Passt eine Zeile auf ein Muster, führt Postfix die ... (2026-07-18)
- [Headscale: Dein eigener Tailscale-Control-Server zum Selbsthosten](https://blog.kuepper.nrw/posts/2026-05-30-headscale-tailscale-control-server-selfhosted/) — Headscale ist eine quelloffene, selbst gehostete Implementierung des Tailscale-Control-Servers, Mesh-VPN auf WireGuard-Basis, ganz ohne fremde Cloud. (2026-05-30)
- [LangExtract: strukturierte Daten aus Texten ziehen](https://blog.kuepper.nrw/posts/2026-05-30-LangExtract-strukturierte-daten-aus-texten-ziehen/) — Googles LangExtract verwandelt unstrukturierten Text in sauber strukturierte Daten, inklusive präzisem Source Grounding und interaktiver Visualisierung. Ein Blick auf das Tool, die Architektur und den lokalen Betrieb mit Ollama. (2026-05-30)
- [A public server where you can play classic text adventure games](https://blog.kuepper.nrw/posts/2026-05-30-retro-text-adventures-im-terminal/) — A public server where you can play classic text adventure games for free. (2026-05-30)
- [flux9s: Ein K9s für FluxCD im Terminal](https://blog.kuepper.nrw/posts/2026-05-19-flux9s-ein-k9s-fuer-fluxcd-im-terminal/) — flux9s bringt das vertraute K9s-Feeling in die FluxCD-Welt: Ein schlankes Terminal-UI in Rust, das Kustomizations, HelmReleases & Co. in Echtzeit überw
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