Port 4915
frcs · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | frcs |
| Registered | 2009-04-17 |
Frequently asked questions
What is port 4915 used for?
Port 4915 is registered with the IANA for frcs (TCP/UDP). Description: Fibics Remote Control Service; Reserved.
Is port 4915 a well-known port?
No. Port 4915 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 4915 is open?
Locally on Linux with ss -tulpn | grep ':4915\b', on Windows with netstat -ano | findstr :4915. To test a remote host use Test-NetConnection <host> -Port 4915 in PowerShell or nc -zv <host> 4915 on Linux/macOS.
How do I open port 4915 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 4915/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=4915/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 4915" -Direction Inbound -Protocol TCP -LocalPort 4915 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | frcs | Fibics Remote Control Service |
| UDP | – | Reserved |