Monit on Ubuntu 24.04 LTS

Overview

Monit is an open source utility for supervising processes and monitoring the health of a host. It watches the things you tell it to care about, system load, CPU, memory and swap, filesystem space, and individual processes and services, and it acts automatically when something goes wrong: it can restart a service that has died, alert you when a threshold is crossed, and keep a running picture of everything it manages. All of it is visible on a single, built in web dashboard that shows each monitored item, its current status, and the live system metrics at a glance, refreshed in near real time.

It suits operators and developers who want lightweight, self contained monitoring and self healing for a server they run and own, without standing up a full metrics stack or agent fleet. Because Monit both watches and reacts, it is as much a supervisor as a monitor: a single daemon that keeps critical services running and tells you the moment host health drifts out of range.

Common uses

• Supervising critical processes and restarting them automatically when they fail
• Watching host health, load, memory, disk and services, from one live web dashboard
• Lightweight self contained monitoring for a server you run and own

See it running

Real screenshots taken while testing this image against its deployment guide.