Port 32400 is Plex Media Server, TCP.
TCP
medium risk
App-IDssl
Plex Media Server — web interface and media streaming for local and remote clients. The web app is at /web on this port.
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-32400 protocol tcp port 32400
set rulebase security rules <rule-name> from <from-zone> to <to-zone> source any destination any application ssl service tcp-32400 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 :32400 - PowerShell
Test-NetConnection <host> -Port 32400 - nmap
nmap -p 32400 <host>