Port 3680

npds-tracker · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Servicenpds-tracker
Registered2003-01

Frequently asked questions

What is port 3680 used for?

Port 3680 is registered with the IANA for npds-tracker (TCP/UDP). Description: NPDS Tracker.

Is port 3680 a well-known port?

No. Port 3680 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 3680 is open?

Locally on Linux with ss -tulpn | grep ':3680\b', on Windows with netstat -ano | findstr :3680. To test a remote host use Test-NetConnection <host> -Port 3680 in PowerShell or nc -zv <host> 3680 on Linux/macOS.

How do I open port 3680 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 3680/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=3680/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 3680" -Direction Inbound -Protocol TCP -LocalPort 3680 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPnpds-trackerNPDS Tracker
UDPnpds-trackerNPDS Tracker

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