User`s manual
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724-746-5500 | blackbox.com Page 140
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:
Select System: Nagios and check NSCA Enabled.
Tunneled
SSH
Nagios monitoring host
Program/
script
External
command
fi le
Remote Console Server
Nagios
NSCA
send_nsca
Remote Managed devices
Nagios
check_serial
Tunneled
SSH
check_nrpe
check_tcp
Remote managed
devices
Remote Console Server
Nagios monitoring host
Serial
Network
NRPE