Tripp Lite B093-004-2E4U-V Owner's Manual

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10. Nagios Integration

Nagios is a powerful and highly conﬁgurable open source tool for monitoring network hosts and services. The core Nagios

software package is typically installed on a server or virtual server, the central Nagios server.

Console servers operate in conjunction with a central/upstream Nagios server to provide distributing monitoring of attached

network hosts and serial devices. They embed the NSCA (Nagios Service Checks Acceptor) and NRPE (Nagios Remote Plug-

in Executor) add-ons, allowing them to communicate with the central Nagios server and eliminating the need for a dedicated

secondary Nagios server at remote sites.

Tripp Lite console servers support distributed monitoring. Even if distributed monitoring is not required, the console servers

can be deployed locally alongside the Nagios monitoring host serve, to provide additional diagnostics and points of access to

managed devices.

Note: If you have an existing Nagios deployment, you may wish to use the console server gateways in a distributed monitoring server

capacity only. If this is the case and you are already familiar with Nagios, skip to section 10.3 Advanced Distributed Monitoring

Conﬁguration.

10.1 Nagios Overview

Nagios provides central monitoring of the hosts and services in your distributed network. Nagios is a free, downloadable, open

source software. This section provides a brief overview of Nagios and its capabilities. For a more comprehensive overview, visit

http://www.nagios.org.

10.2 Conﬁguring Nagios Distributed Monitoring

To activate Nagios distributed monitoring on the console server:

• Nagios integration must be enabled and a path established to the central/upstream Nagios server.

• If the console server is to periodically report on Nagios monitored services, the NSCA client embedded in the console server

must be conﬁgured in order to enable scheduled check-ins with the remote Nagios server and send passive check results

across the network to the remote server.

• If the Nagios server is to actively request status updates from the console server, the NRPE server embedded in the console

server must be conﬁgured with the Nagios daemon for executing plug-ins on remote hosts.

• Each of the serial ports and hosts connected to the console server to be monitored must have Nagios enabled and any

speciﬁc Nagios checks conﬁgured.

• The central/upstream Nagios monitoring host must be conﬁgured.

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Tripp Lite B093-004-2E4U-V 4-Port Console Server with 4G LTE Cellular Gateway, Dual GbE NIC, 4Gb Flash and Dual SIM