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Today, I will talk to you about how to use TCP to send a few simple http requests, many people may not know much about it. In order to make you understand better, the editor has summarized the following content for you. I hope you can get something according to this article.

Use the TCP debug assistant or telnet, both of which make you stand on the shoulders of the giant tcp.

The simplest http request is:

GET / HTTP/1.1

Host: www.baidu.com

Note that you need to add two blank lines at the end to represent a complete http request, the first blank line identifying the separation between head and body, and the second blank line indicating that body is empty.

You can also add other headfields, such as:

Referer: http://hongchangfirst/

The response can be:

HTTP/1.1 200 OK

Server: nginx/0.7.68

Date: Tue, 26 Feb 2013 02:34:44 GMT

Content-Type: text/html; charset=utf-8

Content-Length:35

Connection: keep-alive

Hongchangfirst is your best friend.

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