HTTP Version

You can specify either HTTP/1.0 or HTTP/1.1 in your POST method request.

The management module web server will always identify the response as HTTP/1.l, even though only 1.0 response headers will be returned to a request identified as HTTP/1.0.

If you specify 1.1, your request must conform to protocol requirements defined in RFC 2616, which requires a Host header. (HTTP 1.0 is defined in RFC 1945.)

Regardless of which version you specify in the POST method call, you can use either HTTP/1.0 or HTTP/1.1 request headers.

If you include HTTP/1.1 request headers but specify HTTP/1.0 in the POST method, the server will honor the headers (if it is able to) but it will return only HTTP/1.0 response headers.

The CNA API implements two headers not defined in the HTTP protocol:

• Enable-Authorization request header--similar in both purpose and behavior to the WWW-Authorization header
• Enable-Authenticate response header--similar in both purpose and behavior to the WWW-Authenticate header

These headers provide a means for entering CNA’s enable password through the API.