This guide explains how to set up Nginx as a reverse proxy, create an upstream server group, and configure load‑balancing directives so that two web servers can share traffic and handle increased load efficiently.
The article explains VMware vSphere as a cloud‑based data‑center virtualization suite, detailing its main components such as ESXi, vCenter, vSphere Client, and Web Access, and covering disaster recovery, backup technologies, storage APIs, and various storage provisioning methods like vSAN, VMFS, RDM, NFS/CIFS and vVol.
The article argues that many smart products suffer from pseudo‑demand because they ignore genuine user pain points and usage frequency, illustrating the point with examples like a smart mouse trap, a connected water cup, and Xiaomi's phone strategy.
After two months of deep involvement in a distributed hybrid‑cloud project, I share practical insights on using Restful APIs, RabbitMQ, Redis, logging, component‑based development, testing strategies, coding standards, and cross‑team communication, highlighting challenges and solutions encountered while integrating C#, Java, and Python services.
This guide explains how to configure a WeChat service account, enable template messages, deploy Python and shell scripts, and integrate them with Zabbix so that monitoring alerts are sent directly to WeChat users as template messages.
This article explains what virtual hosts are, how to configure them in Nginx using server blocks, the syntax for listen, server_name, location, index, and root directives, and provides practical examples with wildcard and regex hostnames, auto‑index settings, and access controls.
The article examines the contrasting approaches of software-defined networking and hardware reconstruction in modern data centers, detailing SDN architectures like Cisco ACI, VMware NSX, OpenFlow, NFV initiatives, virtualized networking, and software-defined storage, while highlighting common goals of scalability, automation, and cost control.
This article describes how Docker was employed in a real-world logistics portal project to create a continuous delivery pipeline, integrate Jenkins for CI, standardize container images, automate deployments, and overcome resource constraints, illustrating practical DevOps practices for enterprises.
The article details a backend architecture overhaul using Golang to address search inefficiencies, slow response times, and low conversion rates by introducing asynchronous data filtering, fast in‑memory computation, and performance‑tuned serialization and garbage‑collection strategies.
This article details a real‑world Nginx performance tuning case where long‑running client requests caused timeouts, describing how adjusting keepalive settings, TCP reuse parameters, and upstream proxy timeouts eliminated the delays and stabilized the service for millions of calls.
In this interview, senior manager Liang Yonggang of Dongfang Hongtai discusses his company's background, recent eSDK training on UC/IVS/TP, the benefits and shortcomings of the program, suggestions for the eSDK WeChat channel, and valuable software development and project management lessons he has gathered over a decade in the industry.
The article examines recent high‑profile outages caused by human mistakes, analyzes why operational teams are prone to such errors despite automation and standards, and offers practical strategies—selecting the right people, fostering safety awareness, and turning professionalism into habit—to reduce future incidents.
This guide explains how Nginx rewrite directives perform URL redirection without changing the browser address, covering syntax, placement rules, common use cases, detailed examples, and the meanings of flags like last, break, redirect, and permanent.
The article critiques the conventional bottom‑up, theory‑heavy machine‑learning curriculum for developers, argues that costly degrees and deep math are unnecessary, and proposes a top‑down, project‑focused approach using modern tools, repeatable processes, suitable datasets, and practical resources to quickly build end‑to‑end ML solutions.
This article curates a list of ten science‑fiction and thriller movies, each illustrating fundamental programming ideas such as recursion, loops, reentrancy, virtual machines, AI, and parallelism, helping developers see code concepts come alive on screen.
From its humble beginnings as the BackRub research project in 1996 to the sleek, voice‑search‑only interface of today, Google’s search engine UI has undergone numerous redesigns, feature additions, and simplifications that reflect the company’s growth and shifting user expectations.
Using a shopping‑mall metaphor, the article outlines essential tech‑team roles—CTO, database, backend and frontend engineers, and UI/UX designers—explaining their responsibilities, recommended tools, and how founders without a technical background can effectively assemble and manage a development team.
This article explains how the New York Times redesigned its "Recommended for You" system by combining content‑based filtering, collaborative filtering, and a collaborative topic‑modeling approach that uses LDA, reader‑signal adjustments, and fast preference calculations to deliver personalized article suggestions.
Distributed Segment Processing (DSP) offloads segmenting, hashing, and compression to the backup host, reducing bandwidth and CPU load on Data Domain appliances, while the appliance handles fingerprint filtering and reference tracking, offering bandwidth savings but increasing host CPU usage, so it should be enabled only when host resources permit.
The article presents a collection of thirty‑five core observations from the classic 1984 book “Hackers: Heroes of the Computer Revolution,” highlighting hacker philosophy, attitudes toward openness, control, creativity, and the social impact of computing.
