What does Centreon monitor?
Centreon allows you to monitor resources. Resources can be hosts or services:
- A host is any device that has an IP address and that one wishes to monitor. For example, it could be a physical server, a virtual machine, a temperature probe, an IP camera, a printer or a storage space. A host can have one or more associated services.
- A service is a check point, or indicator, to be monitored on a host. This can be the CPU usage rate, temperature, motion detection, bandwidth usage rate, disk I/O, etc. A service can consist of one or several metrics.
How does monitoring work?
In order to collect each indicator value, monitoring plugins are used. These are periodically executed by a collection engine called Centreon Engine.
How do I see the resources being monitored?
Once hosts and services are monitored, they have a status in Centreon (e.g. OK, Warning, Critical...). You can keep track of any changes using the Monitoring > Resources Status page.
What features can I use to help me monitor hosts?
In Centreon, monitoring is made easy by the following elements:
Host templates and service templates that allow you to define default values to speed up the creation of these objects.
Monitoring Connectors that provide ready-to-use host and service templates. These greatly simplify the configuration of hosts and services: for instance, all you have to do is to apply Monitoring Connector templates to a host for it to be monitored.
The autodiscovery feature for hosts and services, which allows you to obtain a list of new hosts and services and add them automatically to the list of monitored resources.
To learn more about Centreon, you can also read our Glossary of Centreon concepts.