Recent reports show that some Chinese ISPs inject obfuscated cryptocurrency‑mining JavaScript into popular video‑streaming pages, using network hijacking to exploit browsers' CPU cycles without noticeable slowdown, and security tools like 360 Safe Guard now offer anti‑mining protection.
This tutorial shows how to build a keyword‑driven web crawler for JD.com using Python's urllib for URL encoding and opening, combined with powerful regular expressions to accurately extract product information such as dog food listings, and explains how to extend the scraper for multi‑page data collection.
The article outlines five actionable strategies—ensuring tests exist, communicating with the original author, eliminating warnings, refactoring, and making the code better than when found—to responsibly modify and enhance legacy code while minimizing risk and technical debt.
This article examines Suning's evolution from a basic network‑operations unit to a comprehensive security ecosystem, detailing its organizational structure, protection platforms, integrated risk‑control mechanisms, big‑data threat perception system, and management processes that together safeguard its e‑commerce operations.
This guide explains how to install RabbitMQ, set up a three-node Erlang-based cluster on CentOS, configure hostnames, Erlang cookies, designate disk and RAM nodes, manage services, enable mirrored queues, and verify cluster status using command‑line tools.
This article explains how to design and build a lightweight Java web crawler framework, covering crawler fundamentals, anti‑scraping challenges, core components such as URL manager, scheduler, downloader, parser and pipeline, and provides concrete code examples and architectural diagrams.
The article explains why soft skills such as skeptical thinking, curiosity, analytical ability, and communication are crucial for software testers, complementing hard technical knowledge and enhancing defect detection, collaboration, and overall testing effectiveness.
Alibaba leverages multiple machine‑learning models—including spending forecasts, discount‑sensitivity, spread‑ability, category‑preference, and churn prediction—to intelligently allocate shopping vouchers and red packets during Double 11, boosting consumer engagement, merchant sales, and overall platform GMV.
This article presents a comprehensive set of 100 multiple‑choice Linux system administration questions covering daemons, file permissions, package management, networking, and more, each followed by the correct answer, providing a valuable study resource for Linux professionals.
This article analyzes the rapid growth of Python job demand in 2017, then offers practical advice on building solid skills, crafting effective resumes, leveraging internal referrals, and preparing thoroughly for interviews to increase your chances of securing a Python position.
This article walks through the evolution from traditional three‑layer monolithic architecture to microservice architecture, explaining system design concepts, the drawbacks of monoliths, the benefits and challenges of microservices, and compares them with SOA, providing clear diagrams, pros and cons, and practical insights for backend engineers.
Kafka MirrorMaker provides near‑real‑time cross‑data‑center replication by consuming from a source cluster and producing to a target cluster, and this guide explains its core features, new vs. old consumer APIs, partition assignment strategies, performance tuning, network considerations, and practical command‑line examples.
Leading architects from companies like Sogou, Ele.me, Xiaomi, Tuniu, Kuaidi, 58.com, and Tencent shared practical insights on progressively refactoring legacy systems, scaling platforms, adopting service‑oriented and streaming architectures, and balancing optimization with new business demands, offering a comprehensive roadmap for modern backend evolution.
This article shares a comprehensive overview of game operation security at Tencent, covering personal background, real‑world incident cases, the inherent challenges of large‑scale game services, past monitoring efforts, and a new data‑driven alerting framework that dramatically reduces false alarms while protecting game economies.
This article provides a comprehensive overview of Git for enterprise developers, covering repository basics, the .git directory, configuration files like .gitattributes and .gitignore, the three‑level configuration system, and step‑by‑step instructions for creating and cloning repositories on Windows.
This comprehensive guide explores JavaScript module mechanisms—including CommonJS, Node.js core and file modules, AMD, CMD, UMD, and ES6 import/export—detailing their advantages, loading strategies, code examples, circular dependencies, and best practices for modern front‑end and back‑end development.
This article chronicles Bilibili’s front‑end evolution in 2017, detailing the shift from a backend‑centric MVC model to front‑back separation, the adoption of Node middle‑layers, Vue and React SSR, Docker deployment, caching strategies, and subsequent refactoring to improve performance and scalability.
This tutorial explains how to configure the spotify/docker-maven-plugin in a Spring Boot project's pom.xml, build Docker images with Maven commands, run containers, optionally use a custom Dockerfile, push images to DockerHub, and bind the build goal to the Maven package phase for automated container creation.
The article offers career-stage guidance for programmers and outlines the key technical skills—including syntax, collections, design patterns, multithreading, IO, JDK internals, frameworks, databases, algorithms, JVM and web concepts—that a Java developer with three years of experience should master to advance toward senior and leadership roles.
Distributed systems rely on consensus to ensure consistent results, but achieving it faces fundamental challenges such as network unreliability, node failures, and trade‑offs captured by the CAP theorem, FLP impossibility, and various algorithms like Paxos, Raft, and Byzantine Fault Tolerance, each balancing consistency, availability, and safety.
