Port 8889
ddi-tcp-2 and ddi-udp-2 · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | ddi-tcp-2 and ddi-udp-2 |
Frequently asked questions
What is port 8889 used for?
Port 8889 is registered with the IANA for ddi-tcp-2 and ddi-udp-2 (TCP/UDP). Description: Desktop Data TCP 1; NewsEDGE server broadcast.
Is port 8889 a well-known port?
No. Port 8889 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 8889 is open?
Locally on Linux with ss -tulpn | grep ':8889\b', on Windows with netstat -ano | findstr :8889. To test a remote host use Test-NetConnection <host> -Port 8889 in PowerShell or nc -zv <host> 8889 on Linux/macOS.
How do I open port 8889 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 8889/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=8889/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 8889" -Direction Inbound -Protocol TCP -LocalPort 8889 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | ddi-tcp-2 | Desktop Data TCP 1 |
| UDP | ddi-udp-2 | NewsEDGE server broadcast |