Moment For Technology

Perspective HTTP protocol - Breaking the ice

First of all, HTTP is a protocol, a protocol used in the computer world. It uses a language that computers can understand to establish a specification for communication between computers, as well as related controls and error handling. HTTP is a transport protocol for "hypertext". "hypertext" is text beyond plain text. It is a mixture of text, pictures, audio and video, and, crucially, contains...

Why three handshakes ???

The three-way handshake is a concept of transport layer TCP protocol in the network seven-layer model. TCP uses three-way handshaking in order to realize reliable byte stream service (sending data accurately and reliably to each other). First handshake: The sender sends a packet with the SYN flag. (Request) Second handshake:...

Remember the number of parallel HTTP connections that trigger the browser at a time

The background of live broadcast review developed by the company requires multiple live broadcast videos to be manually reviewed on the same page to prevent anchors from being too free. When the number of online hosts is greater than 6, the subsequent host videos from the seventh host cannot be displayed. The error message shows code 403. Error code 403 is displayed, so the initial guess is that the server may have risk control measures, same as...

Perspective HTTP -HTTPS handshake and performance optimization

The browser first extracts the protocol name and domain name from the URI. Since the protocol name is "HTTPS," the browser knows that the port number is 443 by default, resolves the domain name with DNS, gets the destination IP address, and then establishes a TCP connection with the site using a three-way handshake. In HTTP, the browser sends a request packet immediately after a connection is established. But now it's HTTPS...

Prepare for spring recruitment, knowledge summary (a) HTTP

Spring recruitment is approaching, I believe that we are also grasping the golden period of school recruitment. The author also finished the internship recently and began to accumulate the front-end knowledge points learned before. During this period, I also summarized some different types of notes. These notes are partly from the articles of some big names, and partly from their own summary, hoping to be helpful to readers

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