All ports
Port4684/UDP
rfid-rp1Port
4684
Protocol
UDP
Category
Registered
Service
rfid-rp1
What is port 4684?
Port 4684/UDP is a Registered port, registered with IANA for specific applications. It is associated with the rfid-rp1 service.
RFID Reader Protocol 1.0
Useful commands
nmapnmap -p 4684 -sV example.comnetcatnc -zv example.com 4684curlcurl -v http://example.com:4684/telnettelnet example.com 4684bash(echo > /dev/udp/example.com/4684) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 4684/udpDeny
sudo ufw deny 4684/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 4684 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 4684 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=4684/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 4684" dir=in action=allow protocol=UDP localport=4684Security 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- Outdated versions with vulnerabilities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 4684/UDP?
Port 4684/UDP is associated with the rfid-rp1 service. RFID Reader Protocol 1.0
Is it safe to expose port 4684 to the Internet?
It depends on the service and configuration. Port 4684 (rfid-rp1) 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 4684 is open?
You can use nmap: `nmap -p 4684 -sV example.com`, netcat: `nc -zv example.com 4684`, or the bash command: `(echo > /dev/udp/example.com/4684) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 4684 on my firewall?
On Linux with UFW: `sudo ufw allow 4684/udp` (open) or `sudo ufw deny 4684/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 4684 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 4684" dir=in action=allow protocol=UDP localport=4684`.
What applications and services use port 4684?
Port 4684/UDP is used by the rfid-rp1 service. Specific uses depend on the software and configuration. Check our related tools section for more information.