Summary

Nagios can leverage multiple solutions to monitor resources on remote machines—such as disk usage, swap, or other metrics.

In this chapter, we have learned the following items:

  • Using SSH for running checks on remote machines
  • Running multiple checks at once over SSH
  • Troubleshooting the SSH-based checks
  • Using NRPE for performing remote checks
  • Setting up NRPE server and client as well as NRPE-based checks in Nagios
  • Troubleshooting SSH and NRPE connections
  • How SSH and NRPE differ from each other and when to use each of them

The next chapter talks about Simple Network Management Protocol (SNMP), which is a protocol for monitoring and managing various types of devices connected to a network. The protocol supports both querying the device as well as receiving ...

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