Black Box Value-Line and Advanced Console Servers Enable Nrpe monitoring, Enable Nsca monitoring

When NRPE and NSCA are both enabled, NSCA is preferred method for communicating with the upstream Nagios server— check Prefer NRPE to use NRPE whenever possible (that is, for all communication except for alerts).

10.3.2 Enable NRPE monitoring

Enabling NRPE allows you to execute plug-ins (such as check_tcp and check_ping) on the remote Console server to monitor serial or network attached remote servers. This will offload CPU load from the upstream Nagios monitoring machine. This is especially valuable if you are monitoring hundreds or thousands of hosts. To enable NRPE:

Select System: Nagios and check NRPE Enabled

Enter the details for the user connection to the upstream Nagios monitoring server and again refer to the sample Nagios configuration example below for details about how to configure specific NRPE checks.

By default, the console server will accept a connection between the upstream Nagios monitoring server and the NRPE server with SSL encryption, without SSL, or tunneled through SSH. The security for the connection is configured at the Nagios server.

10.3.3 Enable NSCA monitoring

NSCA is the mechanism that allows you to send passive check results from the remote console server to the Nagios daemon running on the monitoring server. To enable NSCA:

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