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CHAPTER 11: NAGIOS INTEGRATION
11.3.5 DISTRIBUTED MONITORING USAGE SCENARIOS
Below are a number of distributed Nagios monitoring scenarios.
LOCAL OFFICE
In this scenario, the console server is set up to monitor the console of each managed device. It can be configured to make a number
of checks, either actively at the Nagios server’s request, or passively at preset intervals, and submit the results to the Nagios server in
a batch.
The console server may be augmented at the local office site by one or more Intelligent Power Distribution Units (IPDUs) to remotely
control the power supply to the managed devices.
REMOTE SITE
In this scenario, the console server NRPE server or NSCA client can be configured to make active checks of configured services and
upload to the Nagios server waiting passively. It can also be configured to service NRPE commands to perform checks on demand.
In this situation, the console server will perform checks based on both serial and network access.
NAGIOS
Internet
Modem
Modem
Console
Server
Firewall: Outgoing connections only
Network checks over Internet
Results updated to Nagios via NSCA
Serial checks over RS-232
FIGURE 11-8.
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