Port 21554

dfserver · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Servicedfserver
Registered2006-06

Frequently asked questions

What is port 21554 used for?

Port 21554 is registered with the IANA for dfserver (TCP/UDP). Description: MineScape Design File Server.

Is port 21554 a well-known port?

No. Port 21554 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 21554 is open?

Locally on Linux with ss -tulpn | grep ':21554\b', on Windows with netstat -ano | findstr :21554. To test a remote host use Test-NetConnection <host> -Port 21554 in PowerShell or nc -zv <host> 21554 on Linux/macOS.

How do I open port 21554 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 21554/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=21554/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 21554" -Direction Inbound -Protocol TCP -LocalPort 21554 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPdfserverMineScape Design File Server
UDPdfserverMineScape Design File Server

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