Sun Microsystems Netscape Enterprise Server, Руководство администратора

Страница: 451 / 532

Appendix A, HyperText Transfer Protocol 451
Responses
Request Header
The client can send header fields to the server. Most are optional. Some
commonly used request headers are shown in Table A.1.
Request Data
If the client has made a
POST
or
PUT
request, it can send data after the request
header and a blank line. If the client sends a
GET
or
HEAD
request, there is no
data to send; the client waits for the server’s response.
Responses
The server’s response includes the following:
• Status code
• Response header
• Response data
Table A.1 Common request headers
Request header Description
Accept
The file types the client can accept.
Authorization
Used if the client wants to authenticate itself with a
server; information such as the username and password
are included.
User-agent
The name and version of the client software.
Referer
The URL of the document where the user clicked on the
link.
Host
The Internet host and port number of the resource being
requested.