Hi, I'm
Damián Klima
Network & System Administrator · Cisco · Linux · Docker
I work in enterprise IT infrastructure and in my free time I focus on homelabs, automation and open-source projects. Here I share things I found useful.
Recent posts
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Free VLAN Planner – Plan Your Network Subnets Online
I built a free online VLAN planner for network engineers. Plan subnets, detect overlaps, document VLANs, and export to CSV or PDF – with full IPv6 support.
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Complete Home Assistant Docker Stack on Raspberry Pi 4
How I set up a full self-hosted smart home stack – Home Assistant, Frigate NVR, Grafana, ESPHome, Cloudflare Tunnel – on a single RPi 4 running 24/7.
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cAdvisor Killing Your Raspberry Pi CPU – Causes and Alternatives
cAdvisor is a popular Docker container monitoring tool, but on Raspberry Pi with many containers it can consume 100%+ CPU. Here is why and what to do instead.
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Grafana 12 Causes 100% CPU on Raspberry Pi – How to Fix It
After updating to Grafana latest tag, my Raspberry Pi load went from 1.0 to 7.0. Here is the cause and the fix.
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Cloudflare Tunnel vs Port Forwarding – Why You Should Switch
Most people expose their home server by opening ports on their router. Here is why Cloudflare Tunnel is a better, safer, and free alternative.