Tomorrow I'll test following your suggestion It is important for the server to know what is the format of your data I know there are easier methods like ftp but I need to do it using http Now I need to implement the upload part (a file transfered from client to webserver) and I think this should be accomplished with POST or PUT verb (as suggested) īe able to do it using telnet is the best way to understand the right http syntax and then do the same with microcontroller
How to use telnet to get http download#
I need a connection-oriented (TCP) system to transfer file from http client (my board with pic24 controller) and http server (webserver) įollowing "GenericTCPClient" demo, the download part (example: http client get index.html from webserver) was easy and the http verb used is, of course, GET I'll google for a simple example of upload.php script (I'm newbie at php side) ĭo webservers like apache or lighttpd has this feature built-in jet? Maybe this is first limit: I've no this kind of file in my webserver.
Note that the server will terminate the telnet connection immediately, because the server initiates a connection, then ends it as soon as the information is sent.=> your must create a php/cgi script (file upload.php) in your webserver to receive the. Press Enter twice to create two blank lines that direct the Web server to transfer its information. Note: you must enter this command exactly as shown, so include the proper spacing. To get this information, issue the following command: GET / HTTP/1.0. However, you can still get this server to give you information.įor example, you can tell the server to send its default document, as specified by /. HTTP servers are not configured to expect human interaction, and therefore do not generate prompts. Use telnet to open a connection with the Web server's HTTP port. 
In addition to the TCP/IP trivial services, you can use telnet to access various servers, including FTP and HTTP. You need not issue a termination sequence (e.g., Ctrl + ]) in this case. This behavior is standard for the daytime port. Also, notice that the server drops the connection right after giving you the time.
You should see that the Web server gives the current time. Now, learn the time of day on the West Coast of the United States by telnetting to the daytime port of Acme's Web server. 
Note that the terminal reports a ^] signal upon exit. Normally, you would end this telnet session by entering Ctrl + ].įor this simulation, however, the telnet session is closed automatically for you.
Notice that the echo port returns exactly the same sentence you entered. Now, enter the following sentence: This is the echo port. Remember: use the number for the port, not the name. In this exercise, you will work with several trivial TCP/IP services (the echo and daytime ports), then with port 80, which is the one generally used by the Hypertext Transfer Protocol (HTTP).įirst, telnet to Acme's Web server, using the actual port number for the echo port on that box. You can use your telnet client to talk directly to many different services. Here are the steps you needed to follow to successfully complete this exercise:
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