Port 4038

fazzt-ptp · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Servicefazzt-ptp

Frequently asked questions

What is port 4038 used for?

Port 4038 is registered with the IANA for fazzt-ptp (TCP/UDP). Description: Fazzt Point-To-Point.

Is port 4038 a well-known port?

No. Port 4038 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 4038 is open?

Locally on Linux with ss -tulpn | grep ':4038\b', on Windows with netstat -ano | findstr :4038. To test a remote host use Test-NetConnection <host> -Port 4038 in PowerShell or nc -zv <host> 4038 on Linux/macOS.

How do I open port 4038 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 4038/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=4038/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 4038" -Direction Inbound -Protocol TCP -LocalPort 4038 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPfazzt-ptpFazzt Point-To-Point
UDPfazzt-ptpFazzt Point-To-Point

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