Frequently asked questions

Yes, all of it. RackMon is free and open source under the MIT licence. There is one edition and it has every feature: rack heatmaps, live telemetry, alerting, discovery, SNMP v2c/v3, SSO, LDAP, SLA reports, the public status page and white-label branding. No account, no licence key, no device limit.

You host it, so the server, the backups and the upgrades are yours. MIT means no warranty and no contractual support — I read and answer every issue, usually quickly, but nothing here promises a response time. And it is maintained by one person, which is why it does rack environmental monitoring and will not grow into a full observability suite.

Until 1 November 2026 RackMon was open-core: five features needed a paid key. In several months that got twenty-two installations and zero sales, so the model is retired. Everything that was Pro is now simply in the product. If you still have RACKMON_LICENSE_KEY in your .env, leave it — it is read and ignored, so nothing breaks on upgrade.

No. It is fully self-hosted: no account, no telemetry, and your monitoring data stays in your database. The only optional outbound call is an update check — off by default — that fetches a public JSON file and sends nothing about your install. There is no licence check at all. The privacy policy lists the exact fields the in-app support form sends, which is the one thing that leaves your server, and only when you click send.

SNMP v2c and v3, including authenticated and encrypted authPriv, plus subnet discovery to find SNMP hosts. There are vendor profiles for Dell iDRAC, HPE iLO, APC/Schneider and the standard ENTITY-SENSOR MIB — and a reference of the OIDs if you are wiring something else.

Yes. MIT allows commercial use, modification and redistribution — including running one instance per client and charging for the service you build around it. White-label branding is a feature of the product, not a paid add-on, so it carries your name, logo and colour.

Anything that runs a container. One image serves the API and web UI on port 8000; SQLite to start, PostgreSQL/TimescaleDB as you grow. Most people are running in about ten minutes.

No — and it doesn’t try to. RackMon focuses on rack thermal and environmental monitoring with a finished, thermal-first UI. See the comparison with Zabbix, PRTG, LibreNMS and Checkmk for where each one fits, including where RackMon is the wrong choice.

Open an issue on GitHub. The whole source is there — backend, frontend and tests — so a pull request works too. A log and the version number get a bug fixed much faster.