All ports
Port514/UDP
syslogPort
514
Protocol
UDP
Category
Well-Known
Service
syslog
What is port 514?
Port 514/UDP is a Well-Known port, assigned by IANA for widely recognized services. It is associated with the syslog service.
Useful commands
nmapnmap -p 514 -sV example.comnetcatnc -zv example.com 514curlcurl -v http://example.com:514/telnettelnet example.com 514bash(echo > /dev/udp/example.com/514) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 514/udpDeny
sudo ufw deny 514/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 514 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 514 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=514/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 514" dir=in action=allow protocol=UDP 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- Outdated versions with vulnerabilities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/UDP?
Port 514/UDP is associated with the syslog service. No detailed description is available in the IANA registry.
Is it safe to expose port 514 to the Internet?
It depends on the service and configuration. Port 514 (syslog) 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/udp/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/udp` (open) or `sudo ufw deny 514/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 514 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 514" dir=in action=allow protocol=UDP localport=514`.
What applications and services use port 514?
Port 514/UDP is used by the syslog service. Specific uses depend on the software and configuration. Check our related tools section for more information.