# Icinga DB Icinga DB is a set of components for publishing, synchronizing and visualizing monitoring data in the Icinga ecosystem, consisting of: * The Icinga DB daemon, which synchronizes monitoring data between a Redis server and a database * Icinga 2 with its [Icinga DB feature](https://icinga.com/docs/icinga-2/latest/doc/14-features/#icinga-db) enabled, responsible for publishing the data to the Redis server, i.e. configuration and its runtime updates, check results, state changes, downtimes, acknowledgements, notifications, and other events such as flapping * And Icinga Web with the [Icinga DB Web](https://icinga.com/docs/icinga-db-web) module enabled, which connects to both Redis and the database to display and work with the most up-to-date data ![Icinga DB Architecture](images/icingadb-architecture.png) ## Installation To install Icinga DB see [Installation](02-Installation.md). ## License Icinga DB and the Icinga DB documentation are licensed under the terms of the GNU General Public License Version 2.