Port 9979
visweather · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | visweather |
| Registered | 2017-05-12 |
Frequently asked questions
What is port 9979 used for?
Port 9979 is registered with the IANA for visweather (TCP/UDP). Description: Valley Information Systems Weather station data; Reserved.
Is port 9979 a well-known port?
No. Port 9979 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 9979 is open?
Locally on Linux with ss -tulpn | grep ':9979\b', on Windows with netstat -ano | findstr :9979. To test a remote host use Test-NetConnection <host> -Port 9979 in PowerShell or nc -zv <host> 9979 on Linux/macOS.
How do I open port 9979 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 9979/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=9979/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 9979" -Direction Inbound -Protocol TCP -LocalPort 9979 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | visweather | Valley Information Systems Weather station data |
| UDP | – | Reserved |