Port 4703
npqes-test · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | npqes-test |
| Registered | 2010-06-28 |
Frequently asked questions
What is port 4703 used for?
Port 4703 is registered with the IANA for npqes-test (TCP/UDP). Description: Network Performance Quality Evaluation System Test Service; Reserved.
Is port 4703 a well-known port?
No. Port 4703 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 4703 is open?
Locally on Linux with ss -tulpn | grep ':4703\b', on Windows with netstat -ano | findstr :4703. To test a remote host use Test-NetConnection <host> -Port 4703 in PowerShell or nc -zv <host> 4703 on Linux/macOS.
How do I open port 4703 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 4703/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=4703/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 4703" -Direction Inbound -Protocol TCP -LocalPort 4703 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | npqes-test | Network Performance Quality Evaluation System Test Service |
| UDP | – | Reserved |