Port 7421

mtportmon · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Servicemtportmon
Registered2004-11

Frequently asked questions

What is port 7421 used for?

Port 7421 is registered with the IANA for mtportmon (TCP/UDP). Description: Matisse Port Monitor.

Is port 7421 a well-known port?

No. Port 7421 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 7421 is open?

Locally on Linux with ss -tulpn | grep ':7421\b', on Windows with netstat -ano | findstr :7421. To test a remote host use Test-NetConnection <host> -Port 7421 in PowerShell or nc -zv <host> 7421 on Linux/macOS.

How do I open port 7421 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 7421/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=7421/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 7421" -Direction Inbound -Protocol TCP -LocalPort 7421 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPmtportmonMatisse Port Monitor
UDPmtportmonMatisse Port Monitor

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