All ports
Port10809/TCP
nbdPort
10809
Protocol
TCP
Category
Registered
Service
nbd
What is port 10809?
Port 10809/TCP is a Registered port, registered with IANA for specific applications. It is associated with the nbd service.
Network Block Device
Useful commands
nmapnmap -p 10809 -sV example.comnetcatnc -zv example.com 10809curlcurl -v http://example.com:10809/telnettelnet example.com 10809bash(echo > /dev/tcp/example.com/10809) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 10809/tcpDeny
sudo ufw deny 10809/tcpiptablesAllow
sudo iptables -A INPUT -p tcp --dport 10809 -j ACCEPTDeny
sudo iptables -D INPUT -p tcp --dport 10809 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=10809/tcpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 10809" dir=in action=allow protocol=TCP localport=10809Security 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- Outdated versions with vulnerabilities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 10809/TCP?
Port 10809/TCP is associated with the nbd service. Network Block Device
Is it safe to expose port 10809 to the Internet?
It depends on the service and configuration. Port 10809 (nbd) 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 10809 is open?
You can use nmap: `nmap -p 10809 -sV example.com`, netcat: `nc -zv example.com 10809`, or the bash command: `(echo > /dev/tcp/example.com/10809) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 10809 on my firewall?
On Linux with UFW: `sudo ufw allow 10809/tcp` (open) or `sudo ufw deny 10809/tcp` (close). With iptables: `sudo iptables -A INPUT -p tcp --dport 10809 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 10809" dir=in action=allow protocol=TCP localport=10809`.
What applications and services use port 10809?
Port 10809/TCP is used by the nbd service. Specific uses depend on the software and configuration. Check our related tools section for more information.