Port 565
whoami · TCP/UDP
| Range | System/well-known port (0–1023) |
|---|---|
| Protocol | TCP/UDP |
| Service | whoami |
Frequently asked questions
What is port 565 used for?
Port 565 is registered with the IANA for whoami (TCP/UDP). Description: whoami.
Is port 565 a well-known port?
Yes. Port 565 is in the range 0–1023 (system or well-known ports). On Linux and macOS only privileged processes may bind to these ports.
How do I check whether port 565 is open?
Locally on Linux with ss -tulpn | grep ':565\b', on Windows with netstat -ano | findstr :565. To test a remote host use Test-NetConnection <host> -Port 565 in PowerShell or nc -zv <host> 565 on Linux/macOS.
How do I open port 565 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 565/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=565/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 565" -Direction Inbound -Protocol TCP -LocalPort 565 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | whoami | whoami |
| UDP | whoami | whoami |