How I can monitor if a port is open to the external world?
Modified on 2025-06-10 21:34:08 +0200
Attention: This article is a record of a conversation with the Paessler support team. The information in this conversation is not updated to preserve the historical record. As a result, some of the information or recommendations in this conversation might be out of date.
Important: We no longer maintain this article. The information might be out of date.
I have an external IP provided dynamically by my ISP so, sometimes, the new IP haven't the port 3389 open for me. Currently I manually monitor this from http://ping.eu/port-chk/, but I wonder if there's a way to monitor if the port 3389 is open to external access through PRTG.
Is there a way to do this? How?
Greetings,
Eric.
Article Comments
Hello Eric,
PRTG needs to send the requests from an external point to monitor if the port is available. You can setup a remote probe in another network, or install a remote probe on a cloud provider machine to create a Port Sensor in PRTG which points to the external IP of your gateway.
Best regards, Felix
Apr, 2017 - Permalink
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.
Hello Eric,
PRTG needs to send the requests from an external point to monitor if the port is available. You can setup a remote probe in another network, or install a remote probe on a cloud provider machine to create a Port Sensor in PRTG which points to the external IP of your gateway.
Best regards, Felix
Apr, 2017 - Permalink