Port 32400: Plex
TCP 32400 is the port for Plex Media Server. Designed to be exposed if you want remote streaming; keep Plex updated.
| Service | Plex Media Server |
|---|---|
| Protocol | TCP |
| Exposure risk | Low: normally safe to expose |
| Range | Registered (1024–49151) |
What port 32400 does
Plex Media Server's port for remote streaming. Plex's "Remote Access" setting tests it from Plex's servers; this checker gives you a second, independent test.
Should port 32400 be open?
Designed to be exposed if you want remote streaming; keep Plex updated.
Find what's listening on port 32400
- Linux:
sudo ss -tulpn | grep :32400 - macOS:
sudo lsof -nP -i :32400 - Windows:
netstat -ano | findstr :32400, then look up the PID in Task Manager.
Open or block it in a firewall
- ufw:
sudo ufw allow 32400/tcp(ordeny) - firewalld:
sudo firewall-cmd --add-port=32400/tcp --permanent && sudo firewall-cmd --reload - Windows:
New-NetFirewallRule -DisplayName "Port 32400" -Direction Inbound -Protocol TCP -LocalPort 32400 -Action Allow
Port assignment per the IANA Service Name and Transport Protocol Port Number Registry. Test several ports at once with the port scanner, or any port with the open port checker.
Questions about port 32400
What is port 32400 used for?
Plex Media Server. Plex Media Server's port for remote streaming. Plex's "Remote Access" setting tests it from Plex's servers; this checker gives you a second, independent test.
Is port 32400 TCP or UDP?
TCP. Plex uses TCP port 32400.
Is it safe to open port 32400?
Low: normally safe to expose. Designed to be exposed if you want remote streaming; keep Plex updated.
How do I check if port 32400 is open?
Use the checker on this page: it connects to your host on TCP 32400 from the internet. Locally, run
nc -vz host 32400 (macOS/Linux) or Test-NetConnection host -Port 32400 (PowerShell). To see what is listening on your own machine, run ss -tulpn | grep :32400 (Linux) or netstat -ano | findstr :32400 (Windows).