IT blog – sieťovanie, Linux, Docker a každodenné tipyhttps://damianklima.com/https://damianklima.com/blog/cadvisor-high-cpu-raspberry-pi/https://damianklima.com/blog/cadvisor-high-cpu-raspberry-pi/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.Sun, 14 Jun 2026 00:00:00 GMThttps://damianklima.com/blog/cloudflare-tunnel-vs-port-forwarding/https://damianklima.com/blog/cloudflare-tunnel-vs-port-forwarding/Most people expose their home server by opening ports on their router. Here is why Cloudflare Tunnel is a better, safer, and free alternative.Wed, 10 Jun 2026 00:00:00 GMThttps://damianklima.com/blog/esphome-esp32-garage-sensors/https://damianklima.com/blog/esphome-esp32-garage-sensors/Building a complete garage monitoring system with an ESP32 – temperature, humidity, motion, door sensor, and relay control using ESPHome.Tue, 07 Apr 2026 00:00:00 GMThttps://damianklima.com/blog/free-vlan-planner-subnet-tool/https://damianklima.com/blog/free-vlan-planner-subnet-tool/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.Tue, 14 Jul 2026 00:00:00 GMThttps://damianklima.com/blog/frigate-nvr-raspberry-pi-without-coral/https://damianklima.com/blog/frigate-nvr-raspberry-pi-without-coral/Frigate NVR provides AI object detection for security cameras. Here is how to run it on a Raspberry Pi 4 without the Google Coral accelerator.Thu, 28 May 2026 00:00:00 GMThttps://damianklima.com/blog/grafana-12-high-cpu-raspberry-pi/https://damianklima.com/blog/grafana-12-high-cpu-raspberry-pi/After updating to Grafana latest tag, my Raspberry Pi load went from 1.0 to 7.0. Here is the cause and the fix.Fri, 12 Jun 2026 00:00:00 GMThttps://damianklima.com/blog/home-assistant-docker-stack-raspberry-pi-4/https://damianklima.com/blog/home-assistant-docker-stack-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.Wed, 17 Jun 2026 00:00:00 GMThttps://damianklima.com/blog/immich-self-hosted-google-photos-raspberry-pi/https://damianklima.com/blog/immich-self-hosted-google-photos-raspberry-pi/Immich is the best self-hosted photo backup solution available. Here is how to run it on a Raspberry Pi 4 with Docker and what to expect from performance.Mon, 20 Apr 2026 00:00:00 GMThttps://damianklima.com/blog/wireguard-vpn-remote-iot-devices/https://damianklima.com/blog/wireguard-vpn-remote-iot-devices/How to use WireGuard to connect IoT devices at a remote location (garage, vacation home) to your main home network running on Raspberry Pi.Fri, 15 May 2026 00:00:00 GMT