Sun Java System Web Server 7.0 Update 4 NSAPI Developer's Guide


A request from a browser to a server includes the following information:

Request Method, URI, and Protocol Version

A browser can request information using a number of methods. The commonly used methods are:

Request Headers

The browser can send headers to the server. Most of these request headers are optional. This section lists some of the commonly used request headers.


File types the browser can accept.


Used if the browser wants to authenticate itself with a server. Information such as the user name and password are included.


Name and version of the browser software.


URL of the document.


Internet host and port number of the resource being requested.

Request Data

If the browser has made a POST or PUT request, it sends data after the blank line following the request headers. If the browser sends a GET or HEAD request, no data exists to send.