Port 4747

buschtrommel · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Servicebuschtrommel
Registered2013-01-14

Frequently asked questions

What is port 4747 used for?

Port 4747 is registered with the IANA for buschtrommel (TCP/UDP). Description: peer-to-peer file exchange protocol; Reserved.

Is port 4747 a well-known port?

No. Port 4747 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 4747 is open?

Locally on Linux with ss -tulpn | grep ':4747\b', on Windows with netstat -ano | findstr :4747. To test a remote host use Test-NetConnection <host> -Port 4747 in PowerShell or nc -zv <host> 4747 on Linux/macOS.

How do I open port 4747 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 4747/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=4747/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 4747" -Direction Inbound -Protocol TCP -LocalPort 4747 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
UDPbuschtrommelpeer-to-peer file exchange protocol
TCP–Reserved

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