Every time you open a webpage, many URLs start with “http”, for example: “http://www.snooker.org/”, “http://www.juxingzaixian.com/pc/” However, sometimes when you access high-security websites such as banks, the prefix changes to “https”, for example: https://apply.mcard.boc.cn/apply/pc/index What do these two prefixes mean? What is their purpose? Many users may not be aware of this. Let me explain it … Read more
The Hyper Text Transfer Protocol (HTTP) is the core communication protocol used to access the World Wide Web and is the protocol used by all web applications today. Although HTTP is widely used in web applications, its insecurity during transmission has led to its gradual replacement by the HTTPS protocol. Initially, HTTP was a simple … Read more
Basic Concepts HTTP (HyperText Transfer Protocol) is an application layer protocol used for distributed, collaborative, and hypermedia information systems. Simply put, it is a method for publishing and receiving HTML pages, used to transmit information between web browsers and website servers. HTTP operates by default on TCP port 80, and users access standard HTTP services … Read more
Cisco Certification | Huawei Certification | IT Technology | Network Engineer 👇3000-person technical exchange QQ group, note [public account] for faster access In the vast ocean of the Internet, we perform countless data transmissions every day. Whether browsing web pages, downloading files, online shopping, or social interactions, these seemingly simple operations rely on two important … Read more
1. HTTP (Hypertext Transfer Protocol) Hypertext Transfer Protocol (HTTP) is a simple request-response protocol that typically runs on top of TCP. It specifies what kind of messages a client can send to a server and what kind of responses it can expect. The headers of request and response messages are given in ASCII; while the … Read more
From: Non-Professional Class TCP/IP Concepts TCP/IP (Transmission Control Protocol/Internet Protocol) is a suite of protocols that enables information transmission across multiple different networks. The TCP/IP protocol does not refer solely to the TCP and IP protocols, but to a suite of protocols including FTP, SMTP, TCP, UDP, IP, etc. It is the fundamental protocol of … Read more
Hello everyone, I am Feiying. The recruitment process at Huawei consists of one written test, three technical interviews, and one HR interview. Compared to other major internet companies, Huawei’s interview difficulty is generally lower. Today, I will share two classic questions encountered by a student during Huawei’s technical interview: Introduce the HTTP protocol and What … Read more
TCP/IP Model TCP and UDP Why TCP Requires Three-Way Handshake Why TCP Requires Four-Way Teardown The Process of a Web Page Requesting a URL How DNS Works Principle of HTTPS Encryption 1. TCP/IP Model Application Layer: Specifies the data format for application programs and handles specific application details. Transport Layer: Specifies ports for specific applications … Read more
When moving applications to the cloud, how can we do without containers! Click on the Container Cube above to follow me. Fault Injection Testing Fault injection testing, as the name suggests, checks whether the fault tolerance mechanism of an application works correctly when some components or functionalities of the tested application encounter potential failures, ensuring … Read more
Source: http://foofish.net/https-symmetric.html Author: _zhijun Before fully understanding HTTPS, it is necessary to clarify some concepts related to cryptography, such as: plaintext, ciphertext, cipher, key, symmetric encryption, asymmetric encryption, hash, digital signature, and digital certificate. — _zhijun Article Navigation –Cipher05% –Key11% –Plaintext/Ciphertext18% –Symmetric Key22% –Asymmetric Key36% –Digital Signature47% –Digital Certificate67% –References88% Cryptography is widely used in … Read more