Port 3091

1ci-smcs · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Service1ci-smcs

Frequently asked questions

What is port 3091 used for?

Port 3091 is registered with the IANA for 1ci-smcs (TCP/UDP). Description: 1Ci Server Management.

Is port 3091 a well-known port?

No. Port 3091 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 3091 is open?

Locally on Linux with ss -tulpn | grep ':3091\b', on Windows with netstat -ano | findstr :3091. To test a remote host use Test-NetConnection <host> -Port 3091 in PowerShell or nc -zv <host> 3091 on Linux/macOS.

How do I open port 3091 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 3091/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=3091/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 3091" -Direction Inbound -Protocol TCP -LocalPort 3091 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCP1ci-smcs1Ci Server Management
UDP1ci-smcs1Ci Server Management

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