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Difference between revisions of "Nagios"
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== Introduction == | == Introduction == | ||
Nagios is an open source monitoring tool. Its standard (Core) version is free for download and use with no real limitations, its premium (XI) version offers additional features, most notably a GUI interface with which to configure it. Configuring Nagios | Nagios is an open source monitoring tool. Its standard (Core) version is free for download and use with no real limitations, its premium (XI) version offers additional features, most notably a GUI interface with which to configure it. Configuring Nagios can be challenging at first, requiring edits to multiple config files to get new monitoring working, but once you're got the logic and the pattern understood it becomes quite flexible. | ||
Nagios is centred around device polling (it can receive SNMP traps, but its a more advanced feature), and the presentation of state data. Though the first thing to appreciate is that Nagios doesn't actually do any monitoring, at its core it's a task scheduling and state management engine. It needs third party '''plugins''', which do the actual monitoring a report back the state of the host you're monitoring to it. There are plugins provided out-of-the-box, which will probably achieve most (if not all) of what you want. | Nagios is centred around device polling (it can receive SNMP traps, but its a more advanced feature), and the presentation of state data. Though the first thing to appreciate is that Nagios doesn't actually do any monitoring, at its core it's a task scheduling and state management engine. It needs third party '''plugins''', which do the actual monitoring a report back the state of the host you're monitoring to it. There are plugins provided out-of-the-box, which will probably achieve most (if not all) of what you want. | ||
== Terminology == | == Terminology == | ||