Port 996
vsinet · TCP/UDP
| Range | System/well-known port (0–1023) |
|---|---|
| Protocol | TCP/UDP |
| Service | vsinet |
Frequently asked questions
What is port 996 used for?
Port 996 is registered with the IANA for vsinet (TCP/UDP). Description: vsinet.
Is port 996 a well-known port?
Yes. Port 996 is in the range 0–1023 (system or well-known ports). On Linux and macOS only privileged processes may bind to these ports.
How do I check whether port 996 is open?
Locally on Linux with ss -tulpn | grep ':996\b', on Windows with netstat -ano | findstr :996. To test a remote host use Test-NetConnection <host> -Port 996 in PowerShell or nc -zv <host> 996 on Linux/macOS.
How do I open port 996 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 996/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=996/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 996" -Direction Inbound -Protocol TCP -LocalPort 996 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | vsinet | vsinet |
| UDP | vsinet | vsinet |