Guidelines

What commands can I use in Telnet?

by Rhyley Bryan

What commands can I use in Telnet?

The Telnet standard commands

Command Description
open hostname Builds an additional connection to the selected host on top of the existing connection
quit Ends the Telnet client connection including all active connections
send argument Sends selected, typical Telnet character strings to the host

How do I telnet from the command line?

For Windows users: Go to Start > Run (or press Windows button+R). In the Run window type cmd and click OK to open the Command prompt. Type in telnet [RemoteServer] [Port]. If you are trying to connect to Intermedia mail server, type in your MX record for the [RemoteServer].

How do I enable telnet commands?

Resolution

  1. From the Windows Start Menu, select “Control Panel”
  2. Open the “Turn Windows features on or off” dialogue: If using the ‘Classic View’/icons select “Programs and Features”
  3. On the left navigation panel, select “Turn Windows features on or off”
  4. Check the box next to “Telnet Client” and click OK.

What is telnet command in CMD?

One of the biggest perks of Telnet is with a simple command you can test whether a port is open. Issuing the Telnet command telnet [domainname or ip] [port] will allow you to test connectivity to a remote host on the given port. Issue the following command in the Command Prompt: telnet [domain name or ip] [port]

How to check the port of a telnet server?

Open a command line and type. telnet smtp-server.domain.com 25. You can also do this with PuTTY. Check the “Telnet” radio button and type 25 instead of 23 in the “Port” textbox. If your server is online a connection will be established on port 25 (SMTP).

Are there any commands for the Telnet protocol?

There are some generally valid commands for the connection protocol that clients implement by default. They are usually the same or similar on Telnet-supported platforms such as Unix, Windows, and Linux. Using the command the connection setup is started, which is completed after the username and password have been entered.

Where is port 25 on a telnet server?

Check the “Telnet” radio button and type 25 instead of 23 in the “Port” textbox. If your server is online a connection will be established on port 25 (SMTP).

What do I need to install Telnet on my computer?

Specifies the hostname or IP address of the remote computer to connect to, and optionally the TCP port to use (default is TCP port 23). /? Displays help at the command prompt. Alternatively, you can type /h. You must install the telnet client software before you can run this command. For more information, see Installing telnet.

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