All ports
Port5540/UDP
matterPort
5540
Protocol
UDP
Category
Registered
Service
matter
What is port 5540?
Port 5540/UDP is a Registered port, registered with IANA for specific applications. It is associated with the matter service.
Matter Operational Discovery and Communi
Useful commands
nmapnmap -p 5540 -sV example.comnetcatnc -zv example.com 5540curlcurl -v http://example.com:5540/telnettelnet example.com 5540bash(echo > /dev/udp/example.com/5540) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 5540/udpDeny
sudo ufw deny 5540/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 5540 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 5540 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=5540/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 5540" dir=in action=allow protocol=UDP localport=5540Security 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- Outdated versions with vulnerabilities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 5540/UDP?
Port 5540/UDP is associated with the matter service. Matter Operational Discovery and Communi
Is it safe to expose port 5540 to the Internet?
It depends on the service and configuration. Port 5540 (matter) 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 5540 is open?
You can use nmap: `nmap -p 5540 -sV example.com`, netcat: `nc -zv example.com 5540`, or the bash command: `(echo > /dev/udp/example.com/5540) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 5540 on my firewall?
On Linux with UFW: `sudo ufw allow 5540/udp` (open) or `sudo ufw deny 5540/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 5540 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 5540" dir=in action=allow protocol=UDP localport=5540`.
What applications and services use port 5540?
Port 5540/UDP is used by the matter service. Specific uses depend on the software and configuration. Check our related tools section for more information.