All ports
Port3686/TCP
tnmpv2Port
3686
Protocol
TCP
Category
Registered
Service
tnmpv2
What is port 3686?
Port 3686/TCP is a Registered port, registered with IANA for specific applications. It is associated with the tnmpv2 service.
Trivial Network Management
Useful commands
nmapnmap -p 3686 -sV example.comnetcatnc -zv example.com 3686curlcurl -v http://example.com:3686/telnettelnet example.com 3686bash(echo > /dev/tcp/example.com/3686) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 3686/tcpDeny
sudo ufw deny 3686/tcpiptablesAllow
sudo iptables -A INPUT -p tcp --dport 3686 -j ACCEPTDeny
sudo iptables -D INPUT -p tcp --dport 3686 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=3686/tcpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 3686" dir=in action=allow protocol=TCP localport=3686Security 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- Outdated versions with vulnerabilities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 3686/TCP?
Port 3686/TCP is associated with the tnmpv2 service. Trivial Network Management
Is it safe to expose port 3686 to the Internet?
It depends on the service and configuration. Port 3686 (tnmpv2) 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 3686 is open?
You can use nmap: `nmap -p 3686 -sV example.com`, netcat: `nc -zv example.com 3686`, or the bash command: `(echo > /dev/tcp/example.com/3686) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 3686 on my firewall?
On Linux with UFW: `sudo ufw allow 3686/tcp` (open) or `sudo ufw deny 3686/tcp` (close). With iptables: `sudo iptables -A INPUT -p tcp --dport 3686 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 3686" dir=in action=allow protocol=TCP localport=3686`.
What applications and services use port 3686?
Port 3686/TCP is used by the tnmpv2 service. Specific uses depend on the software and configuration. Check our related tools section for more information.