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HTTP protocol introduction

HTTP (HyperText Transfer Protocol) is an application layer transmission Protocol based on TCP. Simply speaking, it is a rule for data transmission between the client and the server. HTTP is a stateless protocol, HTTP protocol itself will not send the request and the corresponding communication form...

Strong and negotiated caching

What are strong and negotiated caches? How are strong cache and negotiated cache implemented? What are the advantages and disadvantages of each caching strategy? What is the cache strategy when we refresh?

HTTP common status code

HTPP Status code Classification The HTTP status code consists of three decimal digits. The first decimal digit defines the type of the status code, and the last two digits do not classify the status code. HTTP status codes are classified into five types......

[Basic] Principles and applications of HTTP and TCP/IP protocols

This paper will continue to record the principles of HTTP and TCP/IP mastered by the author in the learning process, as well as some application scenarios of these network communication technologies. The paper will keep updated, which is equivalent to a summary and induction of this knowledge. When users enter the address in the browser address bar, press enter, until they see the web interface, the general time is only two or three seconds or so...

Systematic Learning of graphical HTTP notes (PART 1)

Before we dive into HTTP, let's take a look at the background of its birth. Understanding the background and why HTTP was created helps us understand that in March 1989, HTTP was born in the dawn of the Internet, when the Internet was still a minority. To understand HTTP, we need to understand the TCP/IP protocol family. Commonly used nets...

Talk about TCP three handshake, four wave understanding

TCP protocol definition Connection-oriented reliable transport The source port number and destination port number in the TCP header and the source IP and destination IP in the IP packet uniquely determine a TCP connection. Second and third handshake ACK is the confirmation number, one

Browser Lore 9: The history of HTTP versions

HTTP /0.9 Only one request line GET/index.html The server does not return header information, only data returns file content with ASCII byte stream transmission HTTP /1.0 introduces request header and response header support for multiple types of file download status code: tell browser server

Common login authentication schemes

Editor's note: Today we share the implementation principles and implementation of common authentication schemes for websites as well as their applicable scenarios organized by Lu Shijie to help you make appropriate choices in your business. Speaking of authentication we should be very familiar with, but as a front-end development, authentication process is mostly in the back of the brother side, the purpose of this article is to let you know the common authentication methods and principles. Cognition: HTTP...

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