Stalking is PURELY for logging purposes.When stalking is enabled for a particular HOST or service, Nagios will watch that host or service very carefully and log any changes it sees in the output of check results. As you’ll see, it can be very helpful to you in LATER analysis of the log files. Under normal circumstances, the result of a host or service check is only logged if the host or service has changed state since it was last checked. There are a few exceptions to this, but for the most part, that’s the rule.

If you ENABLE stalking for one or more states of a particular host or service, Nagios will log the results of the host or service check if the output from the check differs from the output from the PREVIOUS check.

Stalking is purely for logging purposes.When stalking is enabled for a particular host or service, Nagios will watch that host or service very carefully and log any changes it sees in the output of check results. As you’ll see, it can be very helpful to you in later analysis of the log files. Under normal circumstances, the result of a host or service check is only logged if the host or service has changed state since it was last checked. There are a few exceptions to this, but for the most part, that’s the rule.

If you enable stalking for one or more states of a particular host or service, Nagios will log the results of the host or service check if the output from the check differs from the output from the previous check.