Port 3203
netwatcher-mon · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | netwatcher-mon |
Frequently asked questions
What is port 3203 used for?
Port 3203 is registered with the IANA for netwatcher-mon (TCP/UDP). Description: Network Watcher Monitor.
Is port 3203 a well-known port?
No. Port 3203 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 3203 is open?
Locally on Linux with ss -tulpn | grep ':3203\b', on Windows with netstat -ano | findstr :3203. To test a remote host use Test-NetConnection <host> -Port 3203 in PowerShell or nc -zv <host> 3203 on Linux/macOS.
How do I open port 3203 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 3203/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=3203/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 3203" -Direction Inbound -Protocol TCP -LocalPort 3203 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | netwatcher-mon | Network Watcher Monitor |
| UDP | netwatcher-mon | Network Watcher Monitor |