OMD (Open Monitoring Distribution) is an open-source distribution for installing and maintaining a Nagios-compatible monitoring system. It integrates into an existing Linux system as a single package and bundles components such as the Naemon core, the Thruk web interface, Grafana graphs and the Monitoring Plugins. The software runs on the organisation's own servers, and the project publishes a new stable release roughly every six months, with nightly builds for testing.
OMD is developed by ConSol Software GmbH in Munich and is licensed under the GNU General Public License version 2. Because it is installed and operated by the customer, monitoring data stays on infrastructure the organisation controls, and the operator decides where that infrastructure is hosted. For a European customer, this means the software can run without a foreign cloud provider in the chain, and the open licence allows the code to be inspected and adapted.