All ports
Port1685/TCP
n2nremotePort
1685
Protocol
TCP
Category
Registered
Service
n2nremote
What is port 1685?
Port 1685/TCP is a Registered port, registered with IANA for specific applications. It is associated with the n2nremote service.
n2nremote
Useful commands
nmapnmap -p 1685 -sV example.comnetcatnc -zv example.com 1685curlcurl -v http://example.com:1685/telnettelnet example.com 1685bash(echo > /dev/tcp/example.com/1685) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 1685/tcpDeny
sudo ufw deny 1685/tcpiptablesAllow
sudo iptables -A INPUT -p tcp --dport 1685 -j ACCEPTDeny
sudo iptables -D INPUT -p tcp --dport 1685 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=1685/tcpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 1685" dir=in action=allow protocol=TCP localport=1685Security 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- Outdated versions with vulnerabilities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 1685/TCP?
Port 1685/TCP is associated with the n2nremote service. n2nremote
Is it safe to expose port 1685 to the Internet?
It depends on the service and configuration. Port 1685 (n2nremote) 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 1685 is open?
You can use nmap: `nmap -p 1685 -sV example.com`, netcat: `nc -zv example.com 1685`, or the bash command: `(echo > /dev/tcp/example.com/1685) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 1685 on my firewall?
On Linux with UFW: `sudo ufw allow 1685/tcp` (open) or `sudo ufw deny 1685/tcp` (close). With iptables: `sudo iptables -A INPUT -p tcp --dport 1685 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 1685" dir=in action=allow protocol=TCP localport=1685`.
What applications and services use port 1685?
Port 1685/TCP is used by the n2nremote service. Specific uses depend on the software and configuration. Check our related tools section for more information.