Port 6791

hnm · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Servicehnm
Registered2005-05
Modified2023-05-24

Frequently asked questions

What is port 6791 used for?

Port 6791 is registered with the IANA for hnm (TCP/UDP). Description: Halcyon Network Manager.

Is port 6791 a well-known port?

No. Port 6791 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 6791 is open?

Locally on Linux with ss -tulpn | grep ':6791\b', on Windows with netstat -ano | findstr :6791. To test a remote host use Test-NetConnection <host> -Port 6791 in PowerShell or nc -zv <host> 6791 on Linux/macOS.

How do I open port 6791 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 6791/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=6791/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 6791" -Direction Inbound -Protocol TCP -LocalPort 6791 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPhnmHalcyon Network Manager
UDPhnmHalcyon Network Manager

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