what is a http header? - Overclock.net

mugan23 · 08-09-07

does any one here know what a http header is?

Ellipsis · 08-09-07

Here is a good explanation of HTTP Headers:

http://www.expertsrt.com/tutorials/M...P_headers.html

Quote:

Originally Posted by www.expertsrt.com

Headers can be separated into two broad types: Request headers that your browser sends to the server when you request a file, and Response headers that the server sends to the browser when it serves the file. Think of these headers as the words in a conversation taking place between the browser and the server. I like to imagine the server as a librarian, and the browser as a researcher asking for a library resource. The browser walks up to the server at the main desk (port 80) and says something like, "Hi, my name is Mozilla, and I'm looking for the resource with the call number 'www.expertsrt.com'. Can you get it for me?" The server listens, and responds "Yes, I found it, let me send it to you. The data in the item is HTML text, and it says '<html>...'" The browser reads through, and comes to an image tag, and asks the server for item with the location in the src attribute. The server looks, finds the file and says "This file is a PNG image, and the data is...." You get the idea.

Hope this helps.