All ports
Port1386/TCP
checksumPort
1386
Protocol
TCP
Category
Registered
Service
checksum
What is port 1386?
Port 1386/TCP is a Registered port, registered with IANA for specific applications. It is associated with the checksum service.
CheckSum License Manager
Useful commands
nmapnmap -p 1386 -sV example.comnetcatnc -zv example.com 1386curlcurl -v http://example.com:1386/telnettelnet example.com 1386bash(echo > /dev/tcp/example.com/1386) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 1386/tcpDeny
sudo ufw deny 1386/tcpiptablesAllow
sudo iptables -A INPUT -p tcp --dport 1386 -j ACCEPTDeny
sudo iptables -D INPUT -p tcp --dport 1386 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=1386/tcpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 1386" dir=in action=allow protocol=TCP localport=1386Security 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- Outdated versions with vulnerabilities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 1386/TCP?
Port 1386/TCP is associated with the checksum service. CheckSum License Manager
Is it safe to expose port 1386 to the Internet?
It depends on the service and configuration. Port 1386 (checksum) 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 1386 is open?
You can use nmap: `nmap -p 1386 -sV example.com`, netcat: `nc -zv example.com 1386`, or the bash command: `(echo > /dev/tcp/example.com/1386) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 1386 on my firewall?
On Linux with UFW: `sudo ufw allow 1386/tcp` (open) or `sudo ufw deny 1386/tcp` (close). With iptables: `sudo iptables -A INPUT -p tcp --dport 1386 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 1386" dir=in action=allow protocol=TCP localport=1386`.
What applications and services use port 1386?
Port 1386/TCP is used by the checksum service. Specific uses depend on the software and configuration. Check our related tools section for more information.