show sessions
The command is bad configurate.
Telnet is a Windows program, not a MS-DOS one. It is not available in pure MS-DOS.
i think is Telnet
Interpret as Command
what osi layers use telnet connections for remote use
Telnet
TELNET commands are primarily used to control the TELNET client and manage remote connections. Basic commands include open to connect to a remote host, close to disconnect, status to display connection information, and help to access a list of available commands. Users can also use control characters like Ctrl+] to access the TELNET command prompt for further commands. Additionally, commands such as set and unset allow users to configure various options for their TELNET session.
Use of SSH or VTY ACLs.
for /l %a in (1,1,10) do @(telnet 127.0.0.1: %a)
Show sessions command
Telnet provides not encrypted connectivity to servers and workstations through terminal type of connection. It uses command-line type.
You need to start CMD or COMMAND depending on OS you have, and in the window type telnet and following by IP address of device you want to connect to.