Monitoring nftables Firewall Rules with Prometheus and Grafana
Turning nftables rule counters into Prometheus time series with a custom exporter and Grafana dashboards, using rule comments as stable human-readable labels.
monitoring
Monitoring UPS Systems with NUT, Prometheus, and Grafana
Monitoring two Eaton UPS units across FreeBSD and Arch Linux ARM with NUT, DRuggeri's nut_exporter, Prometheus, and Grafana.
Monitoring Gardena on NixOS with prometheus-gardena-exporter
Get Gardena smart system data out of the phone app and into Prometheus and Grafana with a Rust exporter, a NixOS module, and per-valve water-use estimates that are honest about what the hardware can and cannot measure.
Monitoring gpsd with Prometheus using prometheus-gpsd-exporter
Why the existing Python and Go gpsd exporters keep crashing, how a Rust rewrite fixes it, and wiring the whole thing up with Prometheus on NixOS — including the gpsd configuration that nobody tells you about.
Running Hickory-DNS as a Full Authoritative + Recursive DNS Server on NixOS
Building hickory-dns from source with Nix, generating zone files from a host registry, wiring up DDNS with Kea DHCP, hardening with systemd, and monitoring the whole thing with Prometheus and Grafana.
Prometheus Ecowitt Exporter on NixOS
Getting Ecowitt weather station data into Prometheus and Grafana with a Rust exporter and a NixOS module — with forwarding to Home Assistant and other receivers.
Running a Private OCI Registry on NixOS with Zot
Setting up a self-hosted, vendor-neutral container registry on NixOS using the Zot module — users, access control, retention, nginx, and monitoring included.
Syncing qBittorrent Ports with ProtonVPN NAT-PMP on NixOS
ProtonVPN assigns ports dynamically via NAT-PMP and they change without warning. A small Rust daemon keeps qBittorrent's listening port in sync, recovers from failures, and exports Prometheus metrics — all wired up as a NixOS module.
Monitoring PostgreSQL on NixOS with pg_exporter
Why the nixpkgs postgres_exporter might not be enough, and how to package pg_exporter from the Pigsty project as a NixOS module — with Nix-native YAML collector configuration, one-toggle Grafana dashboards, and Prometheus wiring.
A Lightweight Prometheus Exporter for Bhyve VMs
Why I wrote a simple Prometheus exporter for FreeBSD bhyve VMs managed by vm-bhyve, and how to use it.