Users who have been using the win10 system for a long time have all encountered that the system will inexplicably pop up a prompt that telnet is not an internal or external command during normal use. Many users are troubled by this unknown thing and need to solve it. The problem that telnet is not an internal or external command is actually very simple. Today, the editor has brought you a detailed explanation with pictures and texts. Let’s take a look.
Operation steps:
1. In the program interface , select "Turn Windows features on or off", as shown in the figure below:
2. In the dialog box that opens, find "Telnet Client" and check it. Finally click "OK" and wait a few minutes. The system will open the Telnet client service for you, as shown in the following figure:
How to use the telnet command to Ping the port
1. Enter the Telnet test port command: "Telnet IP port or Telnet domain name port" and press Enter, as shown below:
2. If the port is closed Or it cannot be connected, it will display that the link to the host cannot be opened, and the window will prompt: Connection failed, as shown in the following figure:
Telnet There are other commonly used commands:
open: Use openhostname to establish a Telnet connection to the host.
close: Use the command close command to close an existing Telnet connection.
display: Use the display command to view the current settings of the Telnet client.
send: Use the send command to send commands to the Telnet server. The following commands are supported:
ao: Abandon output command.
ayt: "Are you there" command.
esc: Send the current escape character.
ip: Interrupt process command.
synch: Perform Telnet synchronization operation.
brk: Send signal.
quit: Use the quit command to exit the Telnet client.
>>>telnet is not an internal or external command
>>>win10telnet is not an internal or external command External command tutorial
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