Port 3878

fotogcad · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Servicefotogcad
Registered2003-10

Frequently asked questions

What is port 3878 used for?

Port 3878 is registered with the IANA for fotogcad (TCP/UDP). Description: FotoG CAD interface.

Is port 3878 a well-known port?

No. Port 3878 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 3878 is open?

Locally on Linux with ss -tulpn | grep ':3878\b', on Windows with netstat -ano | findstr :3878. To test a remote host use Test-NetConnection <host> -Port 3878 in PowerShell or nc -zv <host> 3878 on Linux/macOS.

How do I open port 3878 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 3878/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=3878/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 3878" -Direction Inbound -Protocol TCP -LocalPort 3878 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPfotogcadFotoG CAD interface
UDPfotogcadFotoG CAD interface

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