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How to use telnet?
Telnet is a command to test whether the port is opened successfully.
1). Press ‘windows +R’ on the keyboard, input ’CMD’ in the Run Window;
2). Input Telnet IP address port, such as Telnet 188.8.131.52 8062
3). The result is as follows: it means connection is successful when popping up the black screen.
4). A message says ‘Could not open connection to the host on port 8063’.
User should check or modify the port.