All ports
Port13820/UDP
dsmcc-passthruPort
13820
Protocol
UDP
Category
Registered
Service
dsmcc-passthru
What is port 13820?
Port 13820/UDP is a Registered port, registered with IANA for specific applications. It is associated with the dsmcc-passthru service.
DSMCC Pass-Thru Messages
Useful commands
nmapnmap -p 13820 -sV example.comnetcatnc -zv example.com 13820curlcurl -v http://example.com:13820/telnettelnet example.com 13820bash(echo > /dev/udp/example.com/13820) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 13820/udpDeny
sudo ufw deny 13820/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 13820 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 13820 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=13820/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 13820" dir=in action=allow protocol=UDP localport=13820Security 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- Outdated versions with vulnerabilities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 13820/UDP?
Port 13820/UDP is associated with the dsmcc-passthru service. DSMCC Pass-Thru Messages
Is it safe to expose port 13820 to the Internet?
It depends on the service and configuration. Port 13820 (dsmcc-passthru) 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 13820 is open?
You can use nmap: `nmap -p 13820 -sV example.com`, netcat: `nc -zv example.com 13820`, or the bash command: `(echo > /dev/udp/example.com/13820) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 13820 on my firewall?
On Linux with UFW: `sudo ufw allow 13820/udp` (open) or `sudo ufw deny 13820/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 13820 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 13820" dir=in action=allow protocol=UDP localport=13820`.
What applications and services use port 13820?
Port 13820/UDP is used by the dsmcc-passthru service. Specific uses depend on the software and configuration. Check our related tools section for more information.