NI Software That Uses Ports 15672/15673/5673/5672

Updated Dec 5, 2023

Reported In

Software

  • SystemLink
  • LabVIEW

Other

  • RabbitMQ

Issue Details

I see activity in ports 15672, 15673 or 5672, 5673 in a machine that I'm using with NI software like LabVIEW or SystemLink. Does NI software needs these, is it ok to block them?

Solution

These are all ports related to RabbitMQ which is installed by some LabVIEW or SystemLink components.

Ports 5672/5673 are needed for AMPQ connections and can be disabled, this can be better for security and is now off by default for new installations. 

Either ports 15672 or 15673 are likely for the RabbitMQ Management Plugin, this plugin is not required for NI software functionality and can be disabled if needed.

Additional Information

The NI installer that includes RabbitMQ enables the management UI and then creates a firewall rule to allow remote connections (the installer was designed for a SystemLink Server environment). If you don't require this UI to be accessed remotely, you should be able to create a firewall rule to block the port, which should override the rule that allows access.

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