LW IT Solutions
12 articles in this category
Follow this category by RSSA small computer with plenty of possibilities. A Raspberry Pi can run your own services, automate tasks and give you hands-on experience with Linux. Here I look at setting up those projects and keeping them running.
Topics range from SSDs, power supplies and cooling to Docker, backups, VPNs, Pi-hole and media servers. Monitoring and troubleshooting matter too: how can you spot a problem early, and recover your data after a failure?
A clock reading well below the rated speed looks like a machine in trouble. Two entirely different things produce that reading, and one command tells them apart in a single number.
Technical tutorial on deploying a bare-metal performance diagnostic pipeline for Raspberry Pi using Prometheus, Grafana, and custom SoC textfile collectors.
Technical tutorial on deploying a secure, high-performance WireGuard VPN gateway on Raspberry Pi with selective split-tunneling and nftables firewall hardening.
Technical tutorial on deploying a self-hosted Jellyfin media server on Raspberry Pi 5 using V4L2 hardware acceleration for real-time transcoding at minimal power consumption.
Technical tutorial on deploying a fully automated, self-hosted Raspberry Pi home laboratory with Traefik v3 reverse proxy, zero-touch SSL, and Watchtower image automation.
Prometheus identifies time series by metric name and label values. High cardinality and rapid turnover can strain a Raspberry Pi. Source normalization, targeted diagnostics and careful limits reduce risk; removing a label does not add counter values.
Restart policies, health checks, log rotation and resource limits address different operating risks. A validated Compose example and a focused policy checker show the controls and their limits; monitoring, updates and tested recovery remain necessary.
Sizing a Raspberry Pi UPS requires measured load, usable output energy and a shutdown reserve. A GPIO monitor illustrates delayed shutdown, with explicit limits for battery state, faults and automatic recovery.
How to manage container stacks (Home Assistant, Nextcloud, Python scripts) on a local edge server using GitOps, webhook listeners, and local agents without manual SSH login.
How to configure a centralized local DNS resolver across all VLANs with DoH/DoT upstream encryption and enforce router-level firewall rules to prevent hardcoded DNS bypasses.
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