Requirements As a professional in the IoT industry, having worked on numerous IoT projects, the requirements for an IoT platform are very clear: 1.The supported protocols need to be numerous enough, with common protocols like MQTT and Modbus needing to be supported and easily extensible. 2.The system management must be comprehensive: user management, permission management, … Read more
Famous streamer Bang Laosan predictsthat the opening time for ICC in World of Warcraft has been banned, and there were previous predictions from so-called “uncle parties”. Currently, there is no official announcement from Leihuo, so everyone should follow Leihuo’s updates.World of Warcraft’s national server opened normal TOC on January 16,and HTOC opened on February 27, … Read more
Introduction In the previous article, “Common Application Layer Protocols: Analyzing HTTP from a Traffic Perspective (Part 2),” we introduced the concept, principles, development history, traffic decoding, and simple analysis methods of the HTTP protocol from a traffic analysis perspective. We also discussed two important metrics: request methods and status codes. Today, we bring you the … Read more
MESSAGE QUEUING TELEMETRY TRANSPORTWhat is the “MQTT” Protocol? MQTT (Message Queuing Telemetry Transport) is a standard (ISO/IEC PRF 20922) based on the publish-subscribe paradigm. It operates on top of the TCP/IP protocol and is designed for remote devices with limited hardware capabilities and poor network conditions, making it a publish/subscribe messaging protocol that is lightweight, … Read more
In the rapidly evolving field of smart home technology, understanding the protocols that power your devices is crucial. The two major players in this field are the Matter protocol and the Zigbee protocol. Both protocols aim to make your smart home more interconnected and efficient, but they achieve this in different ways. In this comprehensive … Read more
HTTP is the cornerstone of the internet, the most important and widely used protocol in browsers, and the communication language between browsers and servers. HTTP/0.9 HTTP/0.9 was proposed in 1991, primarily for academic communication, to transmit HTML hypertext content between networks, hence it is called the Hypertext Transfer Protocol. HTTP/0.9 Request Process The request line … Read more
1. Introduction to HTTP 1.1 Versions of HTTP HTTP/0.9 Overview Released in 1991, it has no headers and is very simple, supporting only GET requests. HTTP/1.0 Released in 1996, it has poor security for plaintext transmission and large headers. It has the following enhancements over 0.9: Added headers (decoupling metadata from data) Introduced status codes … Read more
Understanding the HTTP Protocol 1. Concept of HTTP Protocol: Concept: Hypertext Transfer Protocol, which specifies the rules for data transmission between browsers and servers. 2. Characteristics of HTTP Protocol Based on TCP protocol: connection-oriented and secure. Based on request-response model: one request corresponds to one response. HTTP is a stateless protocol: it has no memory … Read more
The MQTT protocol (Message Queuing Telemetry Transport) is a lightweight messaging protocol designed for resource-constrained devices and low-bandwidth, high-latency networks. It is particularly suitable for remote connections that require minimal code footprint or limited network bandwidth. MQTT 5.0 is the latest version of this protocol, featuring numerous improvements over previous versions. New functionalities include: reason … Read more
Interview Background Hello everyone, I am Xia Yi. Today I will continue to share my interview experience at Kuaishou, this is the 9th question. Kuaishou First Interview (48min) Experience: Interviewer: Please introduce yourself briefly. I: I will briefly outline my work, highlighting the key points (understanding the importance of selection). Interviewer: Can you talk about … Read more