Port 16991
intel-rci-mp · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | intel-rci-mp |
Frequently asked questions
What is port 16991 used for?
Port 16991 is registered with the IANA for intel-rci-mp (TCP/UDP). Description: INTEL-RCI-MP.
Is port 16991 a well-known port?
No. Port 16991 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 16991 is open?
Locally on Linux with ss -tulpn | grep ':16991\b', on Windows with netstat -ano | findstr :16991. To test a remote host use Test-NetConnection <host> -Port 16991 in PowerShell or nc -zv <host> 16991 on Linux/macOS.
How do I open port 16991 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 16991/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=16991/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 16991" -Direction Inbound -Protocol TCP -LocalPort 16991 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | intel-rci-mp | INTEL-RCI-MP |
| UDP | intel-rci-mp | INTEL-RCI-MP |