Port 3374
cluster-disc · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | cluster-disc |
Frequently asked questions
What is port 3374 used for?
Port 3374 is registered with the IANA for cluster-disc (TCP/UDP). Description: Cluster Disc.
Is port 3374 a well-known port?
No. Port 3374 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 3374 is open?
Locally on Linux with ss -tulpn | grep ':3374\b', on Windows with netstat -ano | findstr :3374. To test a remote host use Test-NetConnection <host> -Port 3374 in PowerShell or nc -zv <host> 3374 on Linux/macOS.
How do I open port 3374 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 3374/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=3374/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 3374" -Direction Inbound -Protocol TCP -LocalPort 3374 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | cluster-disc | Cluster Disc |
| UDP | cluster-disc | Cluster Disc |