Port 12865
netperf · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | netperf |
| Registered | 2013-04-05 |
Frequently asked questions
What is port 12865 used for?
Port 12865 is registered with the IANA for netperf (TCP/UDP). Description: control port for the netperf benchmark; Reserved.
Is port 12865 a well-known port?
No. Port 12865 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 12865 is open?
Locally on Linux with ss -tulpn | grep ':12865\b', on Windows with netstat -ano | findstr :12865. To test a remote host use Test-NetConnection <host> -Port 12865 in PowerShell or nc -zv <host> 12865 on Linux/macOS.
How do I open port 12865 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 12865/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=12865/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 12865" -Direction Inbound -Protocol TCP -LocalPort 12865 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | netperf | control port for the netperf benchmark |
| UDP | – | Reserved |