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How can Syslog events or SNMP traps trigger "Check Now" on a specific sensor?



I'd like to be able to listen for syslog or SNMP traps [ideally both] that, when received, would trigger a specific sensor to be checked.

Link state changes could then be picked up instantly without aggressive polling frequency.

feature-request prtg snmp syslog

Created on Dec 9, 2010 6:46:36 PM

Last change on Dec 10, 2010 10:35:15 AM by  Daniel Zobel [Product Manager]

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Accepted Answer



This article applies to PRTG Network Monitor 8

Trigger a "Check Now" using a Notification

You can achieve this with a combination of a PRTG API call and a Execute HTTP Action notification.

Build API Call

Using PRTG's API, you can trigger a Check Now for any object. To do so, use this function:


For detailed documentation, login to the web interface (PRTG 8) and select Setup | PRTG API from the main menu. Then click on the HTTP API and the Object Manipulation tabs.

Please build an API call containing your installation's IP address/DNS name and login credentials, such as, for example: http://yourserver/api/scannow.htm?id=objectid&username=myuser&passhash=hash

Add Notification And Notification Trigger

  • Create a new notification (Setup | Account Settings | Notifications) with an Execute HTTP Action containing your API call.
  • Then add a new notification trigger in your sensor's Notifications tab which triggers this notification.

The entire procedure is very similar to the one described in the article Acknowledge a Sensor in Down Status Automatically

Created on Dec 10, 2010 10:33:25 AM by  Daniel Zobel [Product Manager]

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.