All ports
Port3791/UDP
tvnetworkvideoPort
3791
Protocol
UDP
Category
Registered
Service
tvnetworkvideo
What is port 3791?
Port 3791/UDP is a Registered port, registered with IANA for specific applications. It is associated with the tvnetworkvideo service.
TV NetworkVideo Data port
Useful commands
nmapnmap -p 3791 -sV example.comnetcatnc -zv example.com 3791curlcurl -v http://example.com:3791/telnettelnet example.com 3791bash(echo > /dev/udp/example.com/3791) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 3791/udpDeny
sudo ufw deny 3791/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 3791 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 3791 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=3791/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 3791" dir=in action=allow protocol=UDP localport=3791Security 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- Outdated versions with vulnerabilities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 3791/UDP?
Port 3791/UDP is associated with the tvnetworkvideo service. TV NetworkVideo Data port
Is it safe to expose port 3791 to the Internet?
It depends on the service and configuration. Port 3791 (tvnetworkvideo) 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 3791 is open?
You can use nmap: `nmap -p 3791 -sV example.com`, netcat: `nc -zv example.com 3791`, or the bash command: `(echo > /dev/udp/example.com/3791) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 3791 on my firewall?
On Linux with UFW: `sudo ufw allow 3791/udp` (open) or `sudo ufw deny 3791/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 3791 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 3791" dir=in action=allow protocol=UDP localport=3791`.
What applications and services use port 3791?
Port 3791/UDP is used by the tvnetworkvideo service. Specific uses depend on the software and configuration. Check our related tools section for more information.