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Nagios Core Administration Cookbook - Second Edition by Tom Ryder

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Submitting passive checks in response to SNMP traps

In this recipe, you'll learn how to configure Nagios Core to process SNMP traps, which is information sent by monitored network devices to a central monitoring server.

Because SNMP traps often contain useful or urgent information about how a host is working, processing them in at least some way can be very helpful. It can be very helpful particularly for firmware network devices that can't use send_nsca to submit a passive check result in a standard form, as explained in the Submitting passive checks from a remote host with NSCA recipe.

As an example, most SNMP-capable hosts can be configured to send SNMP traps when one of their network interfaces changes state, perhaps due to a pulled network ...

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