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Is there a method to ensure something DOESN'T exist?



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We have a few servers where people who have admin rights did things like adding SMTP in the past. We do not want this. We can set up SNMP checks to see if a service is present, or a port check to ensure that something is UP. But is there a way to do the REVERSE, and have it be "positive"?

absence invert limits lookups port service snmp wmi

Created on May 16, 2015 5:11:30 PM by  Mike Rucker (0) 1

Last change on Jul 31, 2019 12:00:26 PM by  Maike Guba [Paessler Support]

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Hi Mike,

For checking if a service is not installed or not running, you can use the ServiceStatus Sensor from http://prtgtoolsfamily.com/downloads/sensors.

It will return the status of a service where


Using limits, you can set the sensor to a Down status if the service is installed or running.

Created on May 18, 2015 1:48:52 PM by  PRTG Tools Family [prtgtoolsfamily.com] (13,273) 3 4

Last change on Jul 31, 2019 12:02:17 PM by  Maike Guba [Paessler Support]

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Disclaimer: The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.