The Network: HTTP

HTTP is one of several network protocols the common Web browser uses. When a Web browser requests a page, it makes this request in the form of a Uniform Resource Locator (URL). This URL contains important information about the resource being requested, using the following syntax.

<protocol>://<server name>[:<port number>]/<location>

The protocol requested can be one of many different protocols, but most commonly is either HTTP, ftp for file transfer protocol, or file for a file on the local machine. Table 27-2 provides a more complete list of protocols that most browsers will accept.

Table 27-2. Network Protocols
ProtocolDescription
http://World Wide Web server
ftp://FTP server (file transfer)
https//Secure HTTP
news://Usenet newsgroups ...

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