All ports
Port4682/UDP
finisarPort
4682
Protocol
UDP
Category
Registered
Service
finisar
What is port 4682?
Port 4682/UDP is a Registered port, registered with IANA for specific applications. It is associated with the finisar service.
finisar
Useful commands
nmapnmap -p 4682 -sV example.comnetcatnc -zv example.com 4682curlcurl -v http://example.com:4682/telnettelnet example.com 4682bash(echo > /dev/udp/example.com/4682) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 4682/udpDeny
sudo ufw deny 4682/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 4682 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 4682 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=4682/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 4682" dir=in action=allow protocol=UDP localport=4682Security 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- Outdated versions with vulnerabilities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 4682/UDP?
Port 4682/UDP is associated with the finisar service. finisar
Is it safe to expose port 4682 to the Internet?
It depends on the service and configuration. Port 4682 (finisar) 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 4682 is open?
You can use nmap: `nmap -p 4682 -sV example.com`, netcat: `nc -zv example.com 4682`, or the bash command: `(echo > /dev/udp/example.com/4682) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 4682 on my firewall?
On Linux with UFW: `sudo ufw allow 4682/udp` (open) or `sudo ufw deny 4682/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 4682 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 4682" dir=in action=allow protocol=UDP localport=4682`.
What applications and services use port 4682?
Port 4682/UDP is used by the finisar service. Specific uses depend on the software and configuration. Check our related tools section for more information.