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Copyright © 2006 O’Reilly Media, Inc.

Monitoring the health of the devices and services in your IT infrastructure is a necessary and complex task. Nagios, an open source host, service, and network-monitoring program, can help you streamline your network-monitoring tasks and reduce the cost of operation.

With this guide, we’ll discuss how Nagios fits in the overall network-monitoring puzzle. We’ll also cover installation and basic usage and, finally, we’ll show you how to use Nagios with other tools to extend functionality.

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