Monday, December 5, 2022

[RESOLVED] CRITICAL: Return code of 255 is out of bounds. (worker: nagios.int.contoso.com)

If your Nagios status website shows the following error:

CRITICAL: Return code of 255 is out of bounds. (worker: nagios.int.contoso.com) 

It could be that no NSCP client is running/installed on the machine which you wish to monitor. Make sure the client is installed and the service is up and running.

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