All ports
Port3487/TCP
ltctcpPort
3487
Protocol
TCP
Category
Registered
Service
ltctcp
What is port 3487?
Port 3487/TCP is a Registered port, registered with IANA for specific applications. It is associated with the ltctcp service.
LISA TCP Transfer Channel
Useful commands
nmapnmap -p 3487 -sV example.comnetcatnc -zv example.com 3487curlcurl -v http://example.com:3487/telnettelnet example.com 3487bash(echo > /dev/tcp/example.com/3487) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 3487/tcpDeny
sudo ufw deny 3487/tcpiptablesAllow
sudo iptables -A INPUT -p tcp --dport 3487 -j ACCEPTDeny
sudo iptables -D INPUT -p tcp --dport 3487 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=3487/tcpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 3487" dir=in action=allow protocol=TCP localport=3487Security 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- Outdated versions with vulnerabilities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 3487/TCP?
Port 3487/TCP is associated with the ltctcp service. LISA TCP Transfer Channel
Is it safe to expose port 3487 to the Internet?
It depends on the service and configuration. Port 3487 (ltctcp) 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 3487 is open?
You can use nmap: `nmap -p 3487 -sV example.com`, netcat: `nc -zv example.com 3487`, or the bash command: `(echo > /dev/tcp/example.com/3487) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 3487 on my firewall?
On Linux with UFW: `sudo ufw allow 3487/tcp` (open) or `sudo ufw deny 3487/tcp` (close). With iptables: `sudo iptables -A INPUT -p tcp --dport 3487 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 3487" dir=in action=allow protocol=TCP localport=3487`.
What applications and services use port 3487?
Port 3487/TCP is used by the ltctcp service. Specific uses depend on the software and configuration. Check our related tools section for more information.