Port 4889
xcap-control · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | xcap-control |
| Registered | 2018-06-06 |
Frequently asked questions
What is port 4889 used for?
Port 4889 is registered with the IANA for xcap-control (TCP/UDP). Description: xcap code analysis portal cluster control and administration; Reserved.
Is port 4889 a well-known port?
No. Port 4889 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 4889 is open?
Locally on Linux with ss -tulpn | grep ':4889\b', on Windows with netstat -ano | findstr :4889. To test a remote host use Test-NetConnection <host> -Port 4889 in PowerShell or nc -zv <host> 4889 on Linux/macOS.
How do I open port 4889 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 4889/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=4889/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 4889" -Direction Inbound -Protocol TCP -LocalPort 4889 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | xcap-control | xcap code analysis portal cluster control and administration |
| UDP | – | Reserved |