How I can monitor if a port is open to the external world?

Modified on 2025-06-10 21:34:08 +0200

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.

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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

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How I can monitor if a port is open to the external world?

Article CommentsAttention: 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 As a result, some of the information or recommendations in this conversation might be out of date.

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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 As a result, some of the information or recommendations in this conversation might be out of date.