Port 9888

cyborg-systems · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Servicecyborg-systems

Frequently asked questions

What is port 9888 used for?

Port 9888 is registered with the IANA for cyborg-systems (TCP/UDP). Description: CYBORG Systems.

Is port 9888 a well-known port?

No. Port 9888 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 9888 is open?

Locally on Linux with ss -tulpn | grep ':9888\b', on Windows with netstat -ano | findstr :9888. To test a remote host use Test-NetConnection <host> -Port 9888 in PowerShell or nc -zv <host> 9888 on Linux/macOS.

How do I open port 9888 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 9888/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=9888/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 9888" -Direction Inbound -Protocol TCP -LocalPort 9888 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPcyborg-systemsCYBORG Systems
UDPcyborg-systemsCYBORG Systems

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