Port 3119

d2000kernel · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Serviced2000kernel

Frequently asked questions

What is port 3119 used for?

Port 3119 is registered with the IANA for d2000kernel (TCP/UDP). Description: D2000 Kernel Port.

Is port 3119 a well-known port?

No. Port 3119 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 3119 is open?

Locally on Linux with ss -tulpn | grep ':3119\b', on Windows with netstat -ano | findstr :3119. To test a remote host use Test-NetConnection <host> -Port 3119 in PowerShell or nc -zv <host> 3119 on Linux/macOS.

How do I open port 3119 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 3119/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=3119/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 3119" -Direction Inbound -Protocol TCP -LocalPort 3119 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPd2000kernelD2000 Kernel Port
UDPd2000kernelD2000 Kernel Port

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