All ports
Port8686/TCP
sun-as-jmxrmiPort
8686
Protocol
TCP
Category
Registered
Service
sun-as-jmxrmi
What is port 8686?
Port 8686/TCP is a Registered port, registered with IANA for specific applications. It is associated with the sun-as-jmxrmi service.
Sun App Server - JMX/RMI
Useful commands
nmapnmap -p 8686 -sV example.comnetcatnc -zv example.com 8686curlcurl -v http://example.com:8686/telnettelnet example.com 8686bash(echo > /dev/tcp/example.com/8686) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 8686/tcpDeny
sudo ufw deny 8686/tcpiptablesAllow
sudo iptables -A INPUT -p tcp --dport 8686 -j ACCEPTDeny
sudo iptables -D INPUT -p tcp --dport 8686 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=8686/tcpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 8686" dir=in action=allow protocol=TCP localport=8686Security 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- Outdated versions with vulnerabilities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 8686/TCP?
Port 8686/TCP is associated with the sun-as-jmxrmi service. Sun App Server - JMX/RMI
Is it safe to expose port 8686 to the Internet?
It depends on the service and configuration. Port 8686 (sun-as-jmxrmi) 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 8686 is open?
You can use nmap: `nmap -p 8686 -sV example.com`, netcat: `nc -zv example.com 8686`, or the bash command: `(echo > /dev/tcp/example.com/8686) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 8686 on my firewall?
On Linux with UFW: `sudo ufw allow 8686/tcp` (open) or `sudo ufw deny 8686/tcp` (close). With iptables: `sudo iptables -A INPUT -p tcp --dport 8686 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 8686" dir=in action=allow protocol=TCP localport=8686`.
What applications and services use port 8686?
Port 8686/TCP is used by the sun-as-jmxrmi service. Specific uses depend on the software and configuration. Check our related tools section for more information.