Tag：message
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Time：2021-7-30
Other requests are required in PHP developmentHTTP (s) service interfaceMany people will directly use the built-incurlTools. amongcurl_multiYou can combine the previous individualCurl requestIt is added to a batch to execute in parallel, which is implemented in terms of time overheadMax (interface 1, interface 2, interface 3…)It can reduce the sense of waiting for users when […]
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Time：2021-7-19
1. Computer network foundation 1.1 communication mode between hosts Client server (C / s) The client is the requester of the service, and the server is the provider of the service. Peer to peer (P2P) Without distinguishing who is the client and who is the server, both sides can request and provide services to each […]
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Time：2021-7-8
Statement: the content of this article is only for reference. If there is any mistake, the blogger strongly hopes you to point out. If you are the original blogger of a certain knowledge point, if necessary, you can contact me and add a link. The content of this article will be updated according to the […]
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Time：2021-7-6
This article mainly introduces Wireshark Packet capture tool HTTP protocol Related data, and then a simple analysis of these data, the main purpose is to more in-depth understanding HTTP protocolAnd then find out why the network is layered, OSI modelandTCP/IPThe difference between models. 1. HTTP protocol packet capture (Wireshark) 1.1 open Wireshark Tool, select the […]
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Time：2021-7-1
Recommended reading:Learn a Linux command every day (66): SS Command introduction Nmap (network mapper – Network mapper) command is used for network detection and security audit. It is a network exploration tool and port scanner. NAMP can scan single host or large network structure quickly. The output information of nmap is the list of targets […]
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Time：2021-7-1
I didn’t know you were using itDjango REST frameworkIs there a problem when I visit the interface I developed? Shouldn’t I just look like JSON? Why is there a full graphical interface? In fact, this graphical interfaceDjango REST frameworkAutomatically created for us, independent of the browser, independent of our interface. Which parameter determines whether to […]
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Time：2021-6-30
Principle and application of NTP network time server (clock system)Principle and application of NTP network time server (clock system)1. PrefaceIf a distributed system composed of computer network systems wants to be coordinated, millisecond or even microsecond time synchronization is one of the important foundations for business processing such as “shooting on the hour”, “second killing” […]
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Time：2021-6-28
Three handshakes First handshake: when establishing a connection, the client sends a syn packet (syn = x) to the server and enters syn_ Sent status, waiting for server confirmation; SYN: synchronous sequence numbers. The second handshake: when the server receives the syn packet, it must confirm the syn (ACK = x + 1) of the […]
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Time：2021-6-24
preface Computer network foundation is the knowledge that R & D / operation and maintenance engineers need to master, but it is often ignored. Today, I will present a detailed & clear computer network foundation study guide, covering TCP / UDP protocol, HTTP protocol, socket and so on. I hope you will like it. […]
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Time：2021-6-22
Test purpose Because of k8s, I dabbled in go language and found that there are many web frameworks of golang, which are called high-performance benchmark; Previously, I have been committed to the research of C + + high-performance server framework. Out of curiosity, I want to objectively compare go’s many web frameworks from the performance […]
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Time：2021-6-16
The difference between HTTP and http 1、 Basic concepts of HTTP and http Http： The full name of HTTP is HTTP (Hypertext Transfer Protocol), which is the most widely used network protocol on the Internet. HTTP was originally designed to provide a way to publish and receive HTML pages. It makes browsers more efficient. HTTP […]
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Time：2021-6-15
preface Before we combined with the design pattern brieflyOkHttpToday I will continue to talk about its core part——Interceptor。 Because the chain composed of interceptors actually completes the whole process of network communication, we will talk about the functions of each interceptor from this perspective today. First of all, let’s do a brief reviewgetResponseWithInterceptorChainThe method begins. […]
