Chapter Two. Introduction


From the global recipe you now have a basic idea of what you will be able to cook using this cookbook. It is now time to get to know your kitchen a little better; a prerequisite to cooking and serving a fine meal.

Table 2-1 The History of the Internet

A definitive list of sites. A historical description, tracing different roads to Internet development. Detailed discussion of Internet philosophy. Timeline of Internet history, including growth patterns.

Table 2-2 Sources of Internet Statistics

The definitive starting point for finding statistical information. Graphs of Internet usage statistics. Explanation of the above graphs.
A fun site that speculates on the number of Web sites at any given point in time.

Table 2-3 Understanding Domain Name Services

Brief introduction.
Frequently asked questions.
Comprehensive and easy to follow tutorial.

Table 2-4 Types of Internet Address

AddressDescription A specific Internet host. A user at a specific Internet host. A user defined uniquely in a sub-domain (the most convenient form of mail address). The simplest form of Uniform Resource Locator (URL) for access to a Web page using the http protocol. By default, the Web server at the host will try and serve a file called index.html from the document root directory. If index.html is absent, the names of files in the document root directory will be returned. The document root directory is discussed in Section 6.3. As above but on a specific port number, in this instance 70. The default port number is 80. An ftp archive accessed from a Web browser using a URL.
telnet:// A telnet session started from a Web browser.
gopher:// A gopher site accessed from a Web browser. A mail address invoked from a Web browser.
news:comp.infosystems.www.-providers A news group invoked from a Web browser.

Table 2-5 Examples of Mail User Agents (MUAs)

LocationDescription Pine mail program distribution. Pine is a line-oriented mail interface. Elm mail program. Elm is a graphically-oriented mail interface.