Port 4883
wmlserver · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | wmlserver |
| Registered | 2010-03-22 |
Frequently asked questions
What is port 4883 used for?
Port 4883 is registered with the IANA for wmlserver (TCP/UDP). Description: Meier-Phelps License Server; Reserved.
Is port 4883 a well-known port?
No. Port 4883 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 4883 is open?
Locally on Linux with ss -tulpn | grep ':4883\b', on Windows with netstat -ano | findstr :4883. To test a remote host use Test-NetConnection <host> -Port 4883 in PowerShell or nc -zv <host> 4883 on Linux/macOS.
How do I open port 4883 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 4883/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=4883/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 4883" -Direction Inbound -Protocol TCP -LocalPort 4883 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | wmlserver | Meier-Phelps License Server |
| UDP | – | Reserved |