Port 3422

rusb-sys-port · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Servicerusb-sys-port
Registered2002-02

Frequently asked questions

What is port 3422 used for?

Port 3422 is registered with the IANA for rusb-sys-port (TCP/UDP). Description: Remote USB System Port.

Is port 3422 a well-known port?

No. Port 3422 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 3422 is open?

Locally on Linux with ss -tulpn | grep ':3422\b', on Windows with netstat -ano | findstr :3422. To test a remote host use Test-NetConnection <host> -Port 3422 in PowerShell or nc -zv <host> 3422 on Linux/macOS.

How do I open port 3422 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 3422/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=3422/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 3422" -Direction Inbound -Protocol TCP -LocalPort 3422 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPrusb-sys-portRemote USB System Port
UDPrusb-sys-portRemote USB System Port

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