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


NOTE: Using software to mass-download the site degrades the server and is prohibited.
If you want to read The TCP/IP Guide offline, please consider licensing it. Thank you.

The Book is Here... and Now On Sale!

The whole site in one document for easy reference!
The TCP/IP Guide

Custom Search







Table Of Contents  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 Hypertext Transfer Protocol (HTTP)

Previous Topic/Section
HTTP Overview, History, Versions and Standards
Previous Page
Pages in Current Topic/Section
1
Next Page
HTTP Operational Model and Client/Server Communication
Next Topic/Section

HTTP General Operation and Connections

The Hypertext Transfer Protocol (HTTP) began as an extremely basic protocol, designed to do just one thing: allow a client to send a simple request for a hypertext file and receive it back from the server. Modern HTTP remains at its heart a straight-forward request/reply protocol, but now includes many new features and capabilities to support the growing size of the World Wide Web and the ever-increasing variety of ways that people have found to use it. The best place to start in explaining HTTP is thus by looking at its operation as a whole and how communication takes place between a Web server and a Web client.

In this section I introduce the Hypertext Transfer Protocol by describing its operation in general terms. I begin with a high-level overview of HTTP and discussion of its operational model. I explain the two types of connections that are supported between HTTP clients and servers, and the method by which requests can be pipelined in HTTP/1.1. I then provide more information about how persistent connections are established, managed and terminated in the current version of HTTP.

Quick navigation to subsections and regular topics in this section



Previous Topic/Section
HTTP Overview, History, Versions and Standards
Previous Page
Pages in Current Topic/Section
1
Next Page
HTTP Operational Model and Client/Server Communication
Next Topic/Section

If you find The TCP/IP Guide useful, please consider making a small Paypal donation to help the site, using one of the buttons below. You can also donate a custom amount using the far right button (not less than $1 please, or PayPal gets most/all of your money!) In lieu of a larger donation, you may wish to consider purchasing a download license of The TCP/IP Guide. Thanks for your support!
Donate $2
Donate $5
Donate $10
Donate $20
Donate $30
Donate: $



Home - Table Of Contents - Contact Us

The TCP/IP Guide (http://www.TCPIPGuide.com)
Version 3.0 - Version Date: September 20, 2005

© Copyright 2001-2005 Charles M. Kozierok. All Rights Reserved.
Not responsible for any loss resulting from the use of this site.