Port 622
collaborator · TCP/UDP
| Range | System/well-known port (0–1023) |
|---|---|
| Protocol | TCP/UDP |
| Service | collaborator |
Frequently asked questions
What is port 622 used for?
Port 622 is registered with the IANA for collaborator (TCP/UDP). Description: Collaborator.
Is port 622 a well-known port?
Yes. Port 622 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 622 is open?
Locally on Linux with ss -tulpn | grep ':622\b', on Windows with netstat -ano | findstr :622. To test a remote host use Test-NetConnection <host> -Port 622 in PowerShell or nc -zv <host> 622 on Linux/macOS.
How do I open port 622 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 622/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=622/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 622" -Direction Inbound -Protocol TCP -LocalPort 622 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | collaborator | Collaborator |
| UDP | collaborator | Collaborator |