All ports
Port3653/UDP
tspPort
3653
Protocol
UDP
Category
Registered
Service
tsp
What is port 3653?
Port 3653/UDP is a Registered port, registered with IANA for specific applications. It is associated with the tsp service.
Tunnel Setup Protocol
Useful commands
nmapnmap -p 3653 -sV example.comnetcatnc -zv example.com 3653curlcurl -v http://example.com:3653/telnettelnet example.com 3653bash(echo > /dev/udp/example.com/3653) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 3653/udpDeny
sudo ufw deny 3653/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 3653 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 3653 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=3653/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 3653" dir=in action=allow protocol=UDP localport=3653Security 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- Outdated versions with vulnerabilities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 3653/UDP?
Port 3653/UDP is associated with the tsp service. Tunnel Setup Protocol
Is it safe to expose port 3653 to the Internet?
It depends on the service and configuration. Port 3653 (tsp) 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 3653 is open?
You can use nmap: `nmap -p 3653 -sV example.com`, netcat: `nc -zv example.com 3653`, or the bash command: `(echo > /dev/udp/example.com/3653) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 3653 on my firewall?
On Linux with UFW: `sudo ufw allow 3653/udp` (open) or `sudo ufw deny 3653/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 3653 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 3653" dir=in action=allow protocol=UDP localport=3653`.
What applications and services use port 3653?
Port 3653/UDP is used by the tsp service. Specific uses depend on the software and configuration. Check our related tools section for more information.