What are the differences between RPC and HTTP? 1. Differences: 1. Transmission Protocol RPC can be based on TCP protocol or HTTP protocol. HTTP is based on HTTP protocol. 2. Transmission Efficiency RPC, using a custom TCP protocol, can make the request payload smaller, or using HTTP2 protocol can also significantly reduce the payload size, … Read more
In simple terms, it means there is no past, no history. It is important to emphasize that the HTTP protocol is stateless only when cookies are not enabled; when cookies are enabled, it is actually stateful. Here, we will assume that cookies are not enabled. Imagine a scenario where you have developed a web site … Read more
Introduction In modern .NET development, HttpClient is the core class used for sending HTTP requests and receiving responses. However, directly using HttpClient can lead to several issues, such as socket exhaustion and inability to adapt to DNS changes. To address these problems, .NET Core 2.1 introduced HttpClientFactory. This article will delve into how HttpClientFactory works, … Read more
Differences Between HTTP Long Connections and Short Connections In today’s rapidly developing internet technology, the HTTP protocol, as the core protocol for web applications, plays a crucial role in user experience and application performance. HTTP long connections and short connections, as two common connection methods, each have unique advantages and applicable scenarios. This article will … Read more
The HTTP protocol serves as the “common language” of the internet, supporting our daily web browsing, app usage, and API calls. Today, let’s discuss this seemingly simple yet profoundly rich protocol. What is HTTP? HTTP (Hypertext Transfer Protocol) acts like a courier in the internet world, responsible for delivering information between the client (such as … Read more
The Spring team has open-sourced the nohttp project to find, replace, and block the use of http://. The project aims to avoid using http:// whenever possible in favor of https://, ensuring that man-in-the-middle attacks do not occur. ROB WINCH, the project lead for Spring Security, Session, and LDAP, pointed out that the Spring team is … Read more
HTTP proxies are commonly used tools for cross-regional access, widely applied in scenarios such as cross-border e-commerce, data collection, and content access. However, their plaintext transmission characteristics and regulatory loopholes are becoming invisible killers of data security and business stability. A certain cross-border e-commerce team faced the banning of over 500 accounts by Amazon due … Read more
Command Description Basic AT Commands AT: Test AT startup. AT+RST: Restart the module. ATE: Enable or disable AT echo function. WiFi Connection Related Commands AT+CWMODE: Query/set Wi-Fi mode (Station/SoftAP/Station+SoftAP). AT+CWJAP: Connect to the specified WiFi network. MQTT Configuration Commands AT+MQTTUSERCFG: Set MQTT user attributes. AT+MQTTLONGCLIENTID: Set MQTT client ID. AT+MQTTLONGUSERNAME: Set MQTT login username. AT+MQTTLONGPASSWORD: … Read more
In today’s digital wave, the Internet has become an indispensable part of people’s lives and work. The TCP/IP protocol stack, as the cornerstone of Internet communication, carries the massive data transmission tasks globally. However, this “cornerstone” is not unbreakable; its design flaws and vulnerabilities at various layers are often exploited by hackers, posing potential threats … Read more
Recently, we encountered a project where the client’s network environment was unstable, leading to occasional packet loss and network jitter. This caused our software client to intermittently disconnect from the server, interrupting ongoing video conferences. This article takes this opportunity to explain in detail the heartbeat mechanism, packet loss retransmission mechanism, and other related content … Read more