Knowledge Base
Knowledge & Guides
Fundamentals, explanations and field-tested guides for the open-source technologies we run in production at WZ-IT - from Proxmox and Kubernetes to secure remote access and IoT.
Proxmox
The leading open-source virtualization and VMware alternative: what Proxmox is, how to set it up, operate and migrate it.
31 articles
Kubernetes
Practical guidance on Kubernetes architecture, Proxmox, European cloud providers, application modernization, networking, GitOps and cluster operations.
16 articles
Remote Access
Sovereign remote access and remote maintenance platforms: Apache Guacamole, WireGuard, RBAC and audit - designed around the security requirements of distributed plants and IoT fleets, including NIS2.
26 articles
IoT
Sovereign, self-hosted IoT platforms: ThingsBoard, ChirpStack, LoRaWAN, MQTT and Grafana - what they are, what they cost and how to set them up. Vendor-neutral, without cloud lock-in.
20 articlesMonitoring
Server and infrastructure monitoring with open source: Zabbix compared to Checkmk, PRTG & co., what monitoring really costs and when monitoring as a service pays off.
7 articlesLocal & Sovereign AI
Local and sovereign AI with open source: self-host LLMs (vLLM, Ollama), the open-source LLM stack with LiteLLM and Langfuse, RAG with Nextcloud - privacy-focused on your own infrastructure.
22 articlesOpen-source applications
Knowledge by application
Guides, comparisons and architecture articles for individual self-hostable applications, grouped without moving existing articles.
Open the application directory
Open WebUI, NetBird, Paperless-ngx
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Timo Wevelsiep & Robin Zins
Managing Directors of WZ-IT