All ports
Port3471/TCP
jt400-sslPort
3471
Protocol
TCP
Category
Registered
Service
jt400-ssl
What is port 3471?
Port 3471/TCP is a Registered port, registered with IANA for specific applications. It is associated with the jt400-ssl service.
jt400-ssl
Useful commands
nmapnmap -p 3471 -sV example.comnetcatnc -zv example.com 3471curlcurl -v http://example.com:3471/telnettelnet example.com 3471bash(echo > /dev/tcp/example.com/3471) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 3471/tcpDeny
sudo ufw deny 3471/tcpiptablesAllow
sudo iptables -A INPUT -p tcp --dport 3471 -j ACCEPTDeny
sudo iptables -D INPUT -p tcp --dport 3471 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=3471/tcpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 3471" dir=in action=allow protocol=TCP localport=3471Security 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- Outdated versions with vulnerabilities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 3471/TCP?
Port 3471/TCP is associated with the jt400-ssl service. jt400-ssl
Is it safe to expose port 3471 to the Internet?
It depends on the service and configuration. Port 3471 (jt400-ssl) 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 3471 is open?
You can use nmap: `nmap -p 3471 -sV example.com`, netcat: `nc -zv example.com 3471`, or the bash command: `(echo > /dev/tcp/example.com/3471) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 3471 on my firewall?
On Linux with UFW: `sudo ufw allow 3471/tcp` (open) or `sudo ufw deny 3471/tcp` (close). With iptables: `sudo iptables -A INPUT -p tcp --dport 3471 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 3471" dir=in action=allow protocol=TCP localport=3471`.
What applications and services use port 3471?
Port 3471/TCP is used by the jt400-ssl service. Specific uses depend on the software and configuration. Check our related tools section for more information.