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Nagios, 2nd Edition by Wolfgang Barth

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Chapter 7. Testing Local Resources

The plugins introduced in this chapter, originating from the nagios-plugins package,[71] test local resources that do not have their own network protocol and therefore cannot be easily queried over the network. They must therefore be locally installed on the computer to be tested. Such plugins on the Nagios server can test only the server itself—with command and service definitions as described in Chapter 6.

To perform such local tests from a central Nagios server on remote hosts, you require further utilities: the plugins are started via a secure shell, or you use the Nagios Remote Plugin Executor (NRPE). Using the secure shell is described in Chapter 9 from page 205, and Chapter 10 (page 213) is devoted to NRPE. ...

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