Rich Internet Application Server Technologies
Web Servers (IIS and Apache)
In this chapter, we discuss the specialized software—called a web server—that responds to client requests (typically from a web browser) by providing resources such as XHTML documents. For example, when users enter a Uniform Resource Locator (URL) address, such as www.deitel.com, into a web browser, they are requesting a specific document from a web server. The web server maps the URL to a resource on the server (or to a file on the server’s network) and returns the requested resource to the client. During this interaction, the web server and the client communicate using the platform-independent Hypertext Transfer Protocol (HTTP), a protocol for transferring requests and files over the Internet or a local intranet.
Our web server discussion introduces Microsoft Internet Information Services (IIS) and the open source Apache HTTP Server. Sections 21.6 and 21.7 discuss IIS and Apache, respectively.
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