Port 11171
snss · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | snss |
| Registered | 2010-12-24 |
Frequently asked questions
What is port 11171 used for?
Port 11171 is registered with the IANA for snss (TCP/UDP). Description: Reserved; Surgical Notes Security Service Discovery (SNSS).
Is port 11171 a well-known port?
No. Port 11171 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 11171 is open?
Locally on Linux with ss -tulpn | grep ':11171\b', on Windows with netstat -ano | findstr :11171. To test a remote host use Test-NetConnection <host> -Port 11171 in PowerShell or nc -zv <host> 11171 on Linux/macOS.
How do I open port 11171 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 11171/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=11171/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 11171" -Direction Inbound -Protocol TCP -LocalPort 11171 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | – | Reserved |
| UDP | snss | Surgical Notes Security Service Discovery (SNSS) |