Port 30939
dilithium3 · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | dilithium3 |
| Registered | 2026-05-28 |
Frequently asked questions
What is port 30939 used for?
Port 30939 is registered with the IANA for dilithium3 (TCP/UDP). Description: Persistent peer-to-peer connections for block propagation, transaction relay, and BFT consensus message exchange.; Kademlia DHT peer discovery and routing table maintenance..
Is port 30939 a well-known port?
No. Port 30939 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 30939 is open?
Locally on Linux with ss -tulpn | grep ':30939\b', on Windows with netstat -ano | findstr :30939. To test a remote host use Test-NetConnection <host> -Port 30939 in PowerShell or nc -zv <host> 30939 on Linux/macOS.
How do I open port 30939 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 30939/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=30939/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 30939" -Direction Inbound -Protocol TCP -LocalPort 30939 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | dilithium3 | Persistent peer-to-peer connections for block propagation, transaction relay, and BFT consensus message exchange. |
| UDP | dilithium3 | Kademlia DHT peer discovery and routing table maintenance. |