Port 4661
kar2ouche · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | kar2ouche |
Frequently asked questions
What is port 4661 used for?
Port 4661 is registered with the IANA for kar2ouche (TCP/UDP). Description: Kar2ouche Peer location service.
Is port 4661 a well-known port?
No. Port 4661 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 4661 is open?
Locally on Linux with ss -tulpn | grep ':4661\b', on Windows with netstat -ano | findstr :4661. To test a remote host use Test-NetConnection <host> -Port 4661 in PowerShell or nc -zv <host> 4661 on Linux/macOS.
How do I open port 4661 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 4661/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=4661/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 4661" -Direction Inbound -Protocol TCP -LocalPort 4661 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | kar2ouche | Kar2ouche Peer location service |
| UDP | kar2ouche | Kar2ouche Peer location service |