# Icinga 2 Addons and Plugins
## Addons
### Graphing Addons
#### PNP
PNP (http://www.pnp4nagios.org) must be configured using the "bulk mode with npcd and npcdmod"
hence Icinga 2's [PerfdataWriter](#performance-data) acts as npcdmod. NPCD will collect
the rotated performance data files.
#### inGraph
inGraph (https://www.netways.org/projects/ingraph/wiki) requires the ingraph-collector addon
to be configured to point at the perfdata files. Icinga 2's [PerfdataWriter](#performance-data) will
write to the performance data spool directory.
#### Graphite
There are Graphite addons available for collecting the performance data files as well. But
natively you can use the [GraphiteWriter](#graphite-carbon-cache-writer) feature.
#### Icinga Reporting
By enabling the DB IDO feature you can use the Icinga Reporting package.
### Visualization
#### NagVis
By using either Livestatus or DB IDO as a backend you can create your own network maps
based on your monitoring configuration and status data using NagVis (http://www.nagvis.org).
### Web Interfaces
As well as the Icinga supported web interfaces (Classic UI 1.x, Web 1.x, Web 2) there are a
number of community provided web interfaces too:
* Thruk (http://www.thruk.org) based on the [Livestatus](#livestatus) feature
## Plugins
You can find plugins (additional to the ones at [Monitoring Plugins](https://www.monitoring-plugins.org)) over at
[Monitoring Exchange](#https://www.monitoringexchange.org)
More details on the plugins can also be found on the Icinga Wiki at https://wiki.icinga.org
## Plugin API
Currently Icinga 2 supports the native plugin API specification from the `Monitoring Plugins`
project.
The `Monitoring Plugin API` is defined in the [Monitoring Plugins Development Guidelines](https://www.monitoring-plugins.org/doc/guidelines.html).