... of response codes can you expect from a server, and what do you do with them? Chapter 3: Learning HTTP- P1 In the previous chapter, we went through a few examples of HTTP transactions and outlined ... practice, POST is used with CGI programs that happen to interface with other resources like network services and command line programs. In the future, POST may be directly interfaced with a wider variety ... server will reply with a response line and headers, but no entity-body. The headers returned by the server with the HEAD method should be exactly the same as the headers returned with a GET request....