Hello everyone, today I want to introduce a particularly powerful Python library – mitmproxy! It is an intercepting proxy tool that supports HTTP/HTTPS, allowing us to easily monitor and modify network requests. Whether for web scraping or API testing, it can save us a lot of trouble. I have been using it for several years, … Read more
ngx_http_limit_req_module The ngx_http_limit_req_module module limits the request processing rate based on the defined key value, particularly for rate limiting requests from a single IP. limit_req_zone Directive Sets up a shared memory zone to store state information and the number of exceeded requests based on the key; the key can include text, variables, or a combination … Read more
▲ Click the card above to follow me Httpx: Making Asynchronous HTTP Requests Smooth as Silk! The world of network requests in Python has been continuously evolving, and today we are going to talk about this library that excites developers – Httpx. Imagine your network requests no longer crawling like a snail, but flying like … Read more
This article belongs to the collection: Interviewing the Interviewer Series For more interview questions, feel free to add the assistant’s WeChat at the end of the article! This article overview includes: What are the main differences between HTTP/1.1 and HTTP/1.0? Can you elaborate on how HTTP long connections are implemented, their advantages, and disadvantages? Can … Read more
Recently, while analyzing SSE technology, I briefly mentioned HTTP/2, as the HTTP/1.x protocol has long been considered an “antique”. Reasons for Upgrade Upgrading from HTTP/1.x to HTTP/2 can bring various performance improvements and optimizations: Multiplexing In HTTP/1.x, each TCP connection can only handle one request or response, leading to the so-called head-of-line blocking issue. In … Read more
This article systematically organizes the status codes in the HTTP protocol, categorizing and analyzing their meanings and applicable scenarios, which can help developers quickly locate request issues and optimize interaction logic. It also designs a standard based on the combination of HTTP methods and status codes. Detailed Explanation of HTTP Status Codes: Uses and Meanings … Read more
When you enter a URL in your browser to search for information, have you ever noticed whether it starts with “http” or “https”? The difference of an ‘S’ signifies a world of difference in terms of network security. This article delves into the distinctions between HTTP and HTTPS. 1. HTTP HTTP, or HyperText Transfer Protocol, … Read more
IoT Data Platform: Building a Real-Time Monitoring System with MQTT and InfluxDB It was a sultry summer last year when our team took on a large factory’s equipment monitoring project. The outdated system used MySQL to store sensor data collected every 5 minutes, resulting in the database crashing when operations wanted to view real-time trends … Read more
Click the blue text Follow us 1. Core Analysis of MQTT Protocol (1) Essential Characteristics of Lightweight Communication Protocols MQTT (Message Queuing Telemetry Transport) is a “lightweight” communication protocol based on the publish/subscribe model, built on top of the TCP/IP protocol. Its greatest advantage is that it can provide real-time and reliable messaging services for … Read more
What is a subnet mask?A subnet mask is a “translation” of an IP address; it is a 32-bit binary number used for subnet management, primarily to extend the “network ID” in an IP address within multi-segment environments. The two main functions of a subnet mask are: to divide a network into multiple subnets and to … Read more