Question 1

What is Collectd-web?

Accepted Answer

Collectd-web is an open-source web interface for the Collectd monitoring daemon. It reads the RRD files Collectd already writes to disk and renders them as interactive graphs in your browser. There is no extra agent, database, or SaaS account required.

Question 2

Is Collectd-web free?

Accepted Answer

Yes. Collectd-web is fully open source and Apache 2.0 licensed, so you can use it in personal, commercial, and production environments without paying anything. The source is on GitHub and contributions are welcome.

Question 3

Does Collectd-web support multiple hosts?

Accepted Answer

Yes. Point Collectd-web at a directory containing one subfolder of RRDs per host and you'll get a single dashboard that lets you switch between machines. It scales comfortably to dozens of hosts on commodity hardware.

Question 4

How is Collectd-web different from CGP (Collectd Graph Panel)?

Accepted Answer

CGP is a classic PHP frontend that requires Apache and PHP, and its UI hasn't been meaningfully refreshed in years. Collectd-web ships as a self-contained Python server with a modern, responsive UI, dark mode, and zero PHP dependency.

Question 5

How is Collectd-web different from Grafana?

Accepted Answer

Grafana is a general-purpose dashboard that needs a time-series database (Prometheus, InfluxDB, etc.) plus exporters or pipelines to ingest your data. Collectd-web is purpose-built for Collectd's RRDs — no extra database, no remote write, no dashboard JSON to author.

Question 6

Can I run Collectd-web with Docker?

Accepted Answer

Yes. An official Docker image is published and you can mount your Collectd RRD directory into the container to get a dashboard in seconds. See the Install with Docker doc for the exact docker run command.

Question 7

Does Collectd-web work behind a reverse proxy?

Accepted Answer

Yes. Collectd-web runs as a standard HTTP server on a configurable port, so nginx, Apache, Caddy, and Traefik all proxy it cleanly. The docs include working nginx and Apache snippets with TLS termination and basic auth.

Question 8

What Linux distributions are supported?

Accepted Answer

Anywhere Python 3 and Collectd run: Debian, Ubuntu, Rocky, AlmaLinux, RHEL, Fedora, Arch, Alpine, and most others. Debian and Ubuntu have first-class .deb packaging; other distros install easily from source or Docker.