Port 3489

dtp-dia · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Servicedtp-dia
Registered2002-05

Frequently asked questions

What is port 3489 used for?

Port 3489 is registered with the IANA for dtp-dia (TCP/UDP). Description: DTP/DIA.

Is port 3489 a well-known port?

No. Port 3489 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 3489 is open?

Locally on Linux with ss -tulpn | grep ':3489\b', on Windows with netstat -ano | findstr :3489. To test a remote host use Test-NetConnection <host> -Port 3489 in PowerShell or nc -zv <host> 3489 on Linux/macOS.

How do I open port 3489 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 3489/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=3489/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 3489" -Direction Inbound -Protocol TCP -LocalPort 3489 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPdtp-diaDTP/DIA
UDPdtp-diaDTP/DIA

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