Port 5265

3com-njack-2 · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Service3com-njack-2
Registered2003-03

Frequently asked questions

What is port 5265 used for?

Port 5265 is registered with the IANA for 3com-njack-2 (TCP/UDP). Description: 3Com Network Jack Port 2.

Is port 5265 a well-known port?

No. Port 5265 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 5265 is open?

Locally on Linux with ss -tulpn | grep ':5265\b', on Windows with netstat -ano | findstr :5265. To test a remote host use Test-NetConnection <host> -Port 5265 in PowerShell or nc -zv <host> 5265 on Linux/macOS.

How do I open port 5265 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 5265/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=5265/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 5265" -Direction Inbound -Protocol TCP -LocalPort 5265 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCP3com-njack-23Com Network Jack Port 2
UDP3com-njack-23Com Network Jack Port 2

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