wojtczyk/serverload2

This project is a small, self-contained tool for keeping an eye on how busy a Linux server is. It is built for people running their own dedicated or home server who just want a simple way to check load without setting up something heavier. Written in the Rust programming language, it reads the server's built in load and uptime information directly from the operating system and makes it available two ways: as a typed JSON data feed for other programs, and as a browser dashboard that shows live load averages, uptime, and CPU capacity, along with a rolling history of recent readings that updates automatically. The service is meant to run privately on the server itself, listening only on the local loopback address, while a separate web server, Apache in this case, handles the actual public facing URL and can add HTTPS encryption or password protection on top. The tool deliberately refuses to listen on a public network address unless you explicitly tell it that is intentional, which guards against accidentally exposing an unauthenticated monitoring endpoint to the internet. Running it is a matter of building the Rust project and starting the resulting program, with command line options to change which address and port it listens on, how often it samples the server's load, and how many hours of history it keeps in memory before discarding older readings. The project includes ready made setup files for running it as a background service with systemd and example configuration files for wiring it up behind Apache, including versions with HTTPS and basic password authentication. The browser dashboard checks in with the server every few seconds for updates and can pick up where it left off after a page reload. The project is released under the MIT license, and the dashboard's charting library, Chart.js, is bundled under the same license.