Port 6657
palcom-disc · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | palcom-disc |
| Registered | 2010-12-06 |
Frequently asked questions
What is port 6657 used for?
Port 6657 is registered with the IANA for palcom-disc (TCP/UDP). Description: Reserved; PalCom Discovery.
Is port 6657 a well-known port?
No. Port 6657 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 6657 is open?
Locally on Linux with ss -tulpn | grep ':6657\b', on Windows with netstat -ano | findstr :6657. To test a remote host use Test-NetConnection <host> -Port 6657 in PowerShell or nc -zv <host> 6657 on Linux/macOS.
How do I open port 6657 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 6657/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=6657/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 6657" -Direction Inbound -Protocol TCP -LocalPort 6657 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | – | Reserved |
| UDP | palcom-disc | PalCom Discovery |