10.1. Icinga Addons
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## 10.1. Icinga Addons

### 10.1.1. Introduction

There are a lot of "addon" software packages that are available for Icinga. Addons can be used to extend Icinga's functionality or integrate Icinga with other applications.

Addons are available for:

- Managing the config files through a web interface

  - NConf, NagiosQL, LConf, Lilac, ...

- Monitoring remote hosts (*NIX, Windows, etc.)

  - NSCA, NRPE, check_mk, ...

  - NSClient++, ...

- Submitting passive checks from remote hosts

  - NSClient++, check_mk, ...

- Simplifying/extending the notification logic

  - Business Process Addon ...

- Visualizing the information

  - PNP4Nagios

  - NagVis

- Alternative web interfaces

  - Thruk, MultiSite

- ...and much more

You can find many addons for Icinga by visiting:

- Nagios.org

- SourceForge.net

- http://www.monitoringexchange.org

First we'll give a brief introduction to a few of the addons that Ethan Galstad developed for Nagios...

NRPE

NRPE is an addon that allows you to execute plugins on remote Linux/Unix hosts. This is useful if you need to monitor local resources/attributes like disk usage, CPU load, memory usage, etc. on a remote host. Similiar functionality can be accomplished by using the check_by_ssh plugin, although it can impose a higher CPU load on the monitoring machine - especially if you are monitoring hundreds or thousands of hosts.

The NRPE addon can be found at https://git.icinga.org/?p=icinga-nrpe.git. You will find the documentation in the next section.

NSCA

NSCA is an addon that allows you to send passive check results from remote Linux/Unix hosts to the Icinga daemon running on the monitoring server. This is very useful in distributed and redundant/failover monitoring setups.

The NSCA addon can be found at https://git.icinga.org/?p=icinga-nsca.git. You will find the documentation in the next section.

IDOUtils

IDOUtils is an addon that allows you to store all status information from Icinga in a database. Multiple instances of Icinga can all store their information in a central database for centralized reporting. In the future it will probably be used as a basis for a PHP based web interface.

The IDOUtils addon install instructions can be found in the Quickstart-Idoutils and more documentation can be found at http://docs.icinga.org/.

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