All ports
Port3713/UDP
tftpsPort
3713
Protocol
UDP
Category
Registered
Service
tftps
What is port 3713?
Port 3713/UDP is a Registered port, registered with IANA for specific applications. It is associated with the tftps service.
TFTP over TLS
Useful commands
nmapnmap -p 3713 -sV example.comnetcatnc -zv example.com 3713curlcurl -v http://example.com:3713/telnettelnet example.com 3713bash(echo > /dev/udp/example.com/3713) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 3713/udpDeny
sudo ufw deny 3713/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 3713 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 3713 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=3713/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 3713" dir=in action=allow protocol=UDP localport=3713Security 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- Outdated versions with vulnerabilities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 3713/UDP?
Port 3713/UDP is associated with the tftps service. TFTP over TLS
Is it safe to expose port 3713 to the Internet?
It depends on the service and configuration. Port 3713 (tftps) 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 3713 is open?
You can use nmap: `nmap -p 3713 -sV example.com`, netcat: `nc -zv example.com 3713`, or the bash command: `(echo > /dev/udp/example.com/3713) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 3713 on my firewall?
On Linux with UFW: `sudo ufw allow 3713/udp` (open) or `sudo ufw deny 3713/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 3713 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 3713" dir=in action=allow protocol=UDP localport=3713`.
What applications and services use port 3713?
Port 3713/UDP is used by the tftps service. Specific uses depend on the software and configuration. Check our related tools section for more information.