Telnet/HTTP
< Telnet
Telnet is a command-line tool that provides access to a command-line interface on a remote host. It may also be used to test Transmission Control Protocol (TCP) connectivity. These activities will show you how to use Telnet to test an HTTP connection.
Preparation
[edit | edit source]To prepare for this activity:
- Start Windows.
- Log in if necessary.
- Install the Telnet Client
Activity 1 - Test an HTTP Connection
[edit | edit source]To test an HTTP connection:
- Open a command prompt.
- Type telnet <http server> <port>, where <http server> is the name or IP address of the http server to test and <port> is the port number the HTTP server is using. The default HTTP port is 80. For example, to test a connection to www.google.com, type telnet www.google.com 80. Then press Enter.
- If the connection is successful, you will see a blank screen waiting for input. Press <Ctrl>C to close the connection. You will see HTML error content indicating that the web server did not understand your request, however, the appearance of HTML content indicates a successful TCP connection to the HTTP server was made.
- Close the command prompt to complete this activity.