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# About Icinga 2
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2013-09-27 07:19:13 +02:00
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## What is Icinga 2?
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2013-10-18 20:05:08 +02:00
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Icinga 2 is an enterprise-grade open source monitoring system which keeps watch over networks
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and any conceivable network resource, notifies the user of errors and recoveries and generates
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performance data for reporting. Scalable and extensible, Icinga 2 can monitor complex, large
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environments across dispersed locations.
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2013-09-27 07:19:13 +02:00
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## Licensing
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2013-09-26 14:01:29 +02:00
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Icinga 2 and the Icinga 2 documentation are licensed under the terms of the GNU
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General Public License Version 2, you will find a copy of this license in the
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LICENSE file included in the package.
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2013-09-27 07:19:13 +02:00
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## Support
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2013-09-26 14:01:29 +02:00
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Support for Icinga 2 is available in a number of ways. Please have a look at
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the support overview page at [https://support.icinga.org].
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## What's New in Version 0.0.3
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2013-10-18 20:05:08 +02:00
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* `StatusDataWriter` and `ExternalCommandListener` (former `Compat`) and `CompatLogger`
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(former CompatLog) for status.dat/objects.cache/icinga2.cmd/icinga.log for Icinga 1.x Classic UI support
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* `IdoMysqlConnection` and `ExternalCommandListener` for Icinga 1.x Web
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* `IdoMysqlConnection` for Icinga 1.x Reporting, NagVis
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* `LivestatusListener` for addons using the livestatus interface (history tables tbd)
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* `PerfDataWriter` for graphing addons such as PNP/inGraph/graphite (can be loaded multiple times!)
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* `GraphiteWriter` for sending metrics to directly to graphite carbon sockets
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* `CheckResultReader` to collect Icinga 1.x slave checkresults (migrate your distributed setup step-by-step)
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* `ClusterListener` for real distributed architecture including config and runtime data (checks, comments, downtimes) sync and replay
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* `SyslogLogger`, `FileLogger` and `ConsoleLogger` for different types of logging
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* Domain support for distributed cluster environments
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* Config migration script supporting easier migration from Icinga 1.x configuration
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* Reviewed configuration options, additional attributes added
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* Enhanced ITL, added sample configuration
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* Enable/Disable Icinga 2 features on CLI
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* Documentation using Markdown (`Getting Started`, `Monitoring Basics`, `Object Types`, `Icinga Template Library`,
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`Advanced Topics`, `Migration from Icinga 1.x`, `Differences between Icinga 1.x and 2`, `Vagrant Demo VM`)
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* Vagrant Demo VM supported by Puppet modules installing RPM snapshots for Icinga 2, Icinga 1.x Classic UI and Web
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* Package snapshots available on [packages.icinga.org]
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