Port 5009

winfs · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Servicewinfs
Registered2006-01

Frequently asked questions

What is port 5009 used for?

Port 5009 is registered with the IANA for winfs (TCP/UDP). Description: Microsoft Windows Filesystem.

Is port 5009 a well-known port?

No. Port 5009 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 5009 is open?

Locally on Linux with ss -tulpn | grep ':5009\b', on Windows with netstat -ano | findstr :5009. To test a remote host use Test-NetConnection <host> -Port 5009 in PowerShell or nc -zv <host> 5009 on Linux/macOS.

How do I open port 5009 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 5009/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=5009/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 5009" -Direction Inbound -Protocol TCP -LocalPort 5009 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPwinfsMicrosoft Windows Filesystem
UDPwinfsMicrosoft Windows Filesystem

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