Port 2179 · Hyper-V VMBus

Port 2179 is Hyper-V VMBus, TCP.

Microsoft Hyper-V Virtual Machine Bus — used for live migration and management communication between Hyper-V hosts.

Palo Alto

Create the service object for this port, then allow the App-ID on it. Restricting the rule to the port's service object keeps the rule working on a non-default port and stops the App-ID matching on other ports. Replace the placeholders with your own rule name and zones.

set service tcp-2179 protocol tcp port 2179

set rulebase security rules <rule-name> from <from-zone> to <to-zone> source any destination any application msrpc-base service tcp-2179 action allow

Risk and exposure

Rated medium risk. Restrict this port to the sources that need it and keep the service patched; avoid exposing it to the whole internet unless the service is meant to be public.

Check it

• Linux ss -tlnp | grep :2179
• PowerShell Test-NetConnection <host> -Port 2179
• nmap nmap -p 2179 <host>

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