Port 2904

m2ua · SCTP/TCP/UDP

RangeRegistered port (1024–49151)
ProtocolSCTP/TCP/UDP
Servicem2ua

Frequently asked questions

What is port 2904 used for?

Port 2904 is registered with the IANA for m2ua (SCTP/TCP/UDP). Description: M2UA.

Is port 2904 a well-known port?

No. Port 2904 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 2904 is open?

Locally on Linux with ss -tulpn | grep ':2904\b', on Windows with netstat -ano | findstr :2904. To test a remote host use Test-NetConnection <host> -Port 2904 in PowerShell or nc -zv <host> 2904 on Linux/macOS.

How do I open port 2904 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 2904/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=2904/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 2904" -Direction Inbound -Protocol TCP -LocalPort 2904 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPm2uaM2UA
UDPm2uaM2UA
SCTPm2uaM2UA

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