Please Whitelist This Site? I know everyone hates ads. But please understand that I am providing premium content for free that takes hundreds of hours of time to research and write. I don't want to go to a pay-only model like some sites, but when more and more people block ads, I end up working for free. And I have a family to support, just like you. :) If you like The TCP/IP Guide, please consider the download version. It's priced very economically and you can read all of it in a convenient format without ads. If you want to use this site for free, I'd be grateful if you could add the site to the whitelist for Adblock. To do so, just open the Adblock menu and select "Disable on tcpipguide.com". Or go to the Tools menu and select "Adblock Plus Preferences...". Then click "Add Filter..." at the bottom, and add this string: "@@||tcpipguide.com^$document". Then just click OK. Thanks for your understanding! Sincerely, Charles Kozierok Author and Publisher, The TCP/IP Guide

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The TCP/IP Guide  9  TCP/IP Application Layer Protocols, Services and Applications (OSI Layers 5, 6 and 7)       9  TCP/IP Key Applications and Application Protocols            9  TCP/IP File and Message Transfer Applications and Protocols (FTP, TFTP, Electronic Mail, USENET, HTTP/WWW, Gopher)                 9  TCP/IP World Wide Web (WWW, "The Web") and the Hypertext Transfer Protocol (HTTP)                      9  TCP/IP World Wide Web and Hypertext Overview and Concepts

World Wide Web System Concepts and Components 1 2 3 4 World Wide Web Addressing: HTTP Uniform Resource Locators (URLs)

Common Text Formatting Tags

There are also numerous tags that are used to format the appearance of text within a document; some of the more common ones:

• <b>text</b>: Present the enclosed text in bold.
  
  
• <i>text</i>: Present the enclosed text in italics.
  
  
• <u>text</u>: Present the enclosed text underlined.
  
  
• <font (parameters)>text</font>: Present the enclosed text using the indicated font type, size or color.

Again, this is just the tip of the iceberg when it comes to HTML. If you are not familiar with HTML, however, knowing these basic tags should be enough to help you interpret basic HTML documents and learn how HTTP works.

World Wide Web System Concepts and Components 1 2 3 4 World Wide Web Addressing: HTTP Uniform Resource Locators (URLs)