Port 3906

topovista-data · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Servicetopovista-data
Registered2003-11

Frequently asked questions

What is port 3906 used for?

Port 3906 is registered with the IANA for topovista-data (TCP/UDP). Description: TopoVista elevation data.

Is port 3906 a well-known port?

No. Port 3906 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 3906 is open?

Locally on Linux with ss -tulpn | grep ':3906\b', on Windows with netstat -ano | findstr :3906. To test a remote host use Test-NetConnection <host> -Port 3906 in PowerShell or nc -zv <host> 3906 on Linux/macOS.

How do I open port 3906 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 3906/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=3906/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 3906" -Direction Inbound -Protocol TCP -LocalPort 3906 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPtopovista-dataTopoVista elevation data
UDPtopovista-dataTopoVista elevation data

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