All ports
Port514/TCP
shellPort
514
Protocol
TCP
Category
Well-Known
Service
shell
What is port 514?
Port 514/TCP is a Well-Known port, assigned by IANA for widely recognized services. It is associated with the shell service.
cmd like exec, but automatic authentication is performed as for login server
Useful commands
nmapnmap -p 514 -sV example.comnetcatnc -zv example.com 514curlcurl -v http://example.com:514/telnettelnet example.com 514bash(echo > /dev/tcp/example.com/514) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 514/tcpDeny
sudo ufw deny 514/tcpiptablesAllow
sudo iptables -A INPUT -p tcp --dport 514 -j ACCEPTDeny
sudo iptables -D INPUT -p tcp --dport 514 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=514/tcpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 514" dir=in action=allow protocol=TCP localport=514Security 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- Outdated versions with vulnerabilities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 514/TCP?
Port 514/TCP is associated with the shell service. cmd like exec, but automatic authentication is performed as for login server
Is it safe to expose port 514 to the Internet?
It depends on the service and configuration. Port 514 (shell) is a Well-Known 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 514 is open?
You can use nmap: `nmap -p 514 -sV example.com`, netcat: `nc -zv example.com 514`, or the bash command: `(echo > /dev/tcp/example.com/514) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 514 on my firewall?
On Linux with UFW: `sudo ufw allow 514/tcp` (open) or `sudo ufw deny 514/tcp` (close). With iptables: `sudo iptables -A INPUT -p tcp --dport 514 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 514" dir=in action=allow protocol=TCP localport=514`.
What applications and services use port 514?
Port 514/TCP is used by the shell service. Specific uses depend on the software and configuration. Check our related tools section for more information.