Icinga is a monitoring system which checks the availability of your network resources, notifies users of outages, and generates performance data for reporting.
Scalable and extensible, Icinga can monitor large, complex environments across multiple locations.
Icinga 2 is the monitoring server and requires Icinga Web 2 on top in your Icinga Stack. The configuration can be managed with either the Icinga Director, config management tools or plain text within the Icinga DSL.
Key Features
- Logging. 3 different types of logging are supported:
- File logging.
- Syslog.
- Console logging.
- Log rotation
- Core Backends:
- Rest API
- Icinga DB – provides a new core backend and aims to replace the IDO backend output. It consists of different components.
- IDO Database – takes care of exporting all configuration and status information into a database. The IDO database is used by Icinga Web 2 as data backend.
- Metrics – collect, store, visualize and combine performance and metrics data on the way. Data is parsed by features sending metrics to time series databases (TSDB):
- Graphite.
- InfluxDB.
- OpenTSDB.
- Notifications – notifies you when it makes sense through any channel you want.
- Analytics – discover relations and patterns. Create reports with your existing data for different aspects. Filter certain servers/VMs to get dedicated insights.
- Integrations – collects and sends data from and to many of your existing DevOps tools, enabling you to create a tailored monitoring solution that perfectly fits your needs.
Website: icinga.com
Support: GitHub Code Repository
Developer: Icinga GmbH
License: GNU General Public License v2.0

Icinga is written in C++. Learn C++ with our recommended free books and free tutorials.
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Read our verdict in the software roundup.
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