Port 1894
o2server-port · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | o2server-port |
Frequently asked questions
What is port 1894 used for?
Port 1894 is registered with the IANA for o2server-port (TCP/UDP). Description: O2Server Port.
Is port 1894 a well-known port?
No. Port 1894 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 1894 is open?
Locally on Linux with ss -tulpn | grep ':1894\b', on Windows with netstat -ano | findstr :1894. To test a remote host use Test-NetConnection <host> -Port 1894 in PowerShell or nc -zv <host> 1894 on Linux/macOS.
How do I open port 1894 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 1894/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=1894/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 1894" -Direction Inbound -Protocol TCP -LocalPort 1894 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | o2server-port | O2Server Port |
| UDP | o2server-port | O2Server Port |