Open the windows command line and execute In addition, The default port number of the telnet service destination is 23.ģ.
We can use 'telnet target ip port number' to test whether the port number on the opposite tcp is open. It is the standard protocol and main method of the Internet remote login service, providing users with the ability to complete remote host work on the local computer. Telnet protocol is a member of the TCP/IP protocol family.
