Port 2905

m3ua · SCTP/TCP/UDP

RangeRegistered port (1024–49151)
ProtocolSCTP/TCP/UDP
Servicem3ua
ReferenceRFC 4666
Registered2001-06-07

Frequently asked questions

What is port 2905 used for?

Port 2905 is registered with the IANA for m3ua (SCTP/TCP/UDP). Description: M3UA; De-registered.

Is port 2905 a well-known port?

No. Port 2905 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 2905 is open?

Locally on Linux with ss -tulpn | grep ':2905\b', on Windows with netstat -ano | findstr :2905. To test a remote host use Test-NetConnection <host> -Port 2905 in PowerShell or nc -zv <host> 2905 on Linux/macOS.

How do I open port 2905 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 2905/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=2905/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 2905" -Direction Inbound -Protocol TCP -LocalPort 2905 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPm3uaM3UA
UDP–De-registered
SCTPm3uaM3UA

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