UDP 32414
Synopsis
- UDP port 32414 is used by Plex Media Server for its GDM (G’Day Mate) local discovery protocol.
- Plex clients and servers on the same LAN use UDP 32410–32414 (including 32414) to discover each other automatically.
- This is seen across Plex installations on Windows, macOS, Linux, and NAS platforms like Synology and QNAP.
- The port has been abused in the wild for reflection/amplification DDoS attacks when internet-exposed Plex servers respond to spoofed GDM queries.
- Mitigations include blocking UDP 32414 from the internet and limiting Plex discovery to the local network.
Observed activity
Last 30 days
Detailed chart