Port 5543

qftest-lic-mcp · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Serviceqftest-lic-mcp
Registered2024-01-05
Modified2026-09-04

Frequently asked questions

What is port 5543 used for?

Port 5543 is registered with the IANA for qftest-lic-mcp (TCP/UDP). Description: QF-Test License Server / QF-Test MCP Server; Reserved.

Is port 5543 a well-known port?

No. Port 5543 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 5543 is open?

Locally on Linux with ss -tulpn | grep ':5543\b', on Windows with netstat -ano | findstr :5543. To test a remote host use Test-NetConnection <host> -Port 5543 in PowerShell or nc -zv <host> 5543 on Linux/macOS.

How do I open port 5543 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 5543/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=5543/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 5543" -Direction Inbound -Protocol TCP -LocalPort 5543 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPqftest-lic-mcpQF-Test License Server / QF-Test MCP Server
UDP–Reserved

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