All ports
Port5009/UDP
winfsPort
5009
Protocol
UDP
Category
Registered
Service
winfs
What is port 5009?
Port 5009/UDP is a Registered port, registered with IANA for specific applications. It is associated with the winfs service.
Microsoft Windows Filesystem
Useful commands
nmapnmap -p 5009 -sV example.comnetcatnc -zv example.com 5009curlcurl -v http://example.com:5009/telnettelnet example.com 5009bash(echo > /dev/udp/example.com/5009) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 5009/udpDeny
sudo ufw deny 5009/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 5009 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 5009 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=5009/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 5009" dir=in action=allow protocol=UDP localport=5009Security Risks
- Unauthorized access to the service
- Data exposure if the service is unauthenticated
- Outdated versions with vulnerabilities
- Incorrect service configuration
Frequently Asked Questions
What service runs on port 5009/UDP?
Port 5009/UDP is associated with the winfs service. Microsoft Windows Filesystem
Is it safe to expose port 5009 to the Internet?
It depends on the service and configuration. Port 5009 (winfs) is a Registered port. If you need to expose it, keep the service updated, use strong authentication, and configure a firewall. It's always recommended to restrict access by IP when possible.
How do I check if port 5009 is open?
You can use nmap: `nmap -p 5009 -sV example.com`, netcat: `nc -zv example.com 5009`, or the bash command: `(echo > /dev/udp/example.com/5009) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 5009 on my firewall?
On Linux with UFW: `sudo ufw allow 5009/udp` (open) or `sudo ufw deny 5009/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 5009 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 5009" dir=in action=allow protocol=UDP localport=5009`.
What applications and services use port 5009?
Port 5009/UDP is used by the winfs service. Specific uses depend on the software and configuration. Check our related tools section for more information.