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10.3.4 Configure Selected Serial Ports for Nagios Monitoring
The individual Serial Ports connected to the
console server
to be monitored must be configured for Nagios checks. Refer
to
Chapter 4.4—Network Host Configuration
for details on enabling Nagios monitoring for Hosts that are network
connected to the
console server
. To enable Nagios to monitor a device connected to the
console server
serial port:
Select
Serial & Network: Serial Port
and click
Edit
on the serial Port # you want to monitor.
Select
Enable Nagios,
specify the name of the device on the upstream server and determine the check you want
to run on this port.
Serial Status
monitors the handshaking lines on the serial port and
Check Port
monitors the
data logged for the serial port.
10.3.5 Configure Selected Network Hosts for Nagios Monitoring
The individual Network Hosts connected to the
console server
that you want to monitor must also be configured for
Nagios checks:
Select
Serial & Network: Network Port
and click
Edit
on the Network Host you want to monitor.
Select
Enable Nagios,
specify the name of the device as it will appear on the upstream Nagios server.
Click
New Check
to add a specific check which will be run on this host.
Select
Check Permitted TCP/UDP
to monitor a service that you have previously added as a
Permitted Service.
Select
Check TCP/UDP
to specify a service port that you want to monitor, without allowing external (SDT
Connector) access.
Select
Check TCP
to monitor.
The
Nagios Check
nominated as the
check-‐host-‐alive
check is the check used to determine whether the network
host itself is up or down.
Typically this will be
Check Ping
—although in some cases the host will be configured not to respond to pings.
If no
check-‐host-‐alive
check is selected, the host will always be assumed to be up.
You may deselect
check-‐host-‐alive
by clicking
Clear
check-‐host-‐alive.
If required, customize the selected
Nagios
Checks
to use custom arguments.
Click
Apply.
10.3.6 Configure the upstream Nagios monitoring host
Refer to the Nagios documentation (http://www.nagios.org/docs/) for configuring the upstream server:
The section entitled
Distributed Monitoring
steps through what you need to do to configure NSCA on the
upstream server (under
Central Server Configuration
).
NRPE Documentation
was recently added that steps through configuring NRPE on the upstream server
http://nagios.sourceforge.net/docs/nrpe/NRPE.pdf.
At this stage, Nagios at the upstream monitoring server is configured, and individual serial port and network host
connections on the
console server
are configured for Nagios monitoring. If NSCA is enabled, each selected check will be
executed once over the period of the check interval. If NRPE is enabled, then the upstream server will be able to request
status updates under its own scheduling.
