Chapter 3. Working with Checks and States

In this chapter, we will cover the following recipes:

  • Specifying how frequently to check a host or service
  • Changing thresholds for PING RTT and packet loss
  • Changing thresholds for disk usage
  • Scheduling downtime for a host or service
  • Managing brief outages with flapping
  • Adjusting flapping percentage thresholds for a service

Introduction

Once hosts and services are configured in Nagios Core, its behavior is primarily dictated by the checks it makes to ensure that hosts and services are operating as expected and, in turn, as a result of these checks, it concludes the state in which these hosts and services must be.

How often it's appropriate to check hosts and services and on what basis it's appropriate to flag a ...

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