1# About Icinga 2 <a id="about-icinga2"></a>
2
3## What is Icinga 2?  <a id="what-is-icinga2"></a>
4
5[Icinga](https://icinga.com/products/) is a monitoring system which checks
6the availability of your network resources, notifies users of outages, and generates
7performance data for reporting.
8
9Scalable and extensible, Icinga can monitor large, complex environments across
10multiple locations.
11
12Icinga 2 is the monitoring server and requires [Icinga Web 2](https://icinga.com/products/)
13on top in your Icinga Stack. The [configuration](https://icinga.com/products/configuration/)
14can be easily managed with either the [Icinga Director](https://icinga.com/docs/director/latest/),
15config management tools or plain text within the [Icinga DSL](04-configuration.md#configuration).
16
17
18![Icinga 2 Distributed Master and Satellites with Agents](images/distributed-monitoring/icinga2_distributed_monitoring_scenarios_master_satellites_agents.png)
19
20## Start with Icinga <a id="start-icinga"></a>
21
22* [Installation](02-installation.md#installation)
23* [Monitoring Basics](03-monitoring-basics.md#monitoring-basics)
24* [Configuration](04-configuration.md#configuration)
25* [Distributed Monitoring](06-distributed-monitoring.md#distributed-monitoring)
26* [Addons, Integrations and Features](13-addons.md#addons)
27* [Troubleshooting](15-troubleshooting.md#troubleshooting)
28* [Upgrading](16-upgrading-icinga-2.md#upgrading-icinga-2)
29
30Once Icinga Server and Web are running in your distributed environment,
31make sure to check out the many [Icinga modules](https://icinga.com/docs/)
32for even better monitoring.
33
34## What's New <a id="whats-new"></a>
35
36You can follow the development and release milestones on [GitHub](https://github.com/icinga/icinga2/issues).
37Please follow our release announcements on [icinga.com](https://icinga.com/blog/) too.
38
39## Support <a id="support"></a>
40
41Check the project website at [icinga.com](https://icinga.com) for status updates. Join the
42[community channels](https://icinga.com/community/) for questions
43or get in touch for [professional support](https://icinga.com/subscription/).
44
45## Contribute  <a id="contribute"></a>
46
47There are many ways to contribute to Icinga -- whether it be sending patches,
48testing, reporting bugs or reviewing and updating the documentation. Every
49contribution is appreciated!
50
51Please continue reading in the [Contributing chapter](https://github.com/Icinga/icinga2/blob/master/CONTRIBUTING.md).
52
53### Security Issues <a id="security"></a>
54
55For reporting security issues please visit [this page](https://icinga.com/contact/security/).
56
57### Icinga 2 Development <a id="development-info"></a>
58
59The Git repository is located on [GitHub](https://github.com/Icinga/icinga2).
60
61Icinga 2 is written in C++ and can be built on Linux/Unix and Windows.
62Read more about development builds in the [development chapter](21-development.md#development).
63
64
65## License <a id="license"></a>
66
67Icinga 2 and the Icinga 2 documentation are licensed under the terms of the GNU
68General Public License Version 2. You will find a copy of this license in the
69LICENSE file included in the source package.
70
71