Old Tang | Pseudo-full-stack tech player: writes code without going bald, manages projects without going crazy, delivers without staying up late. No formal tutorials here, only a "slacking-off" practical manual that cures system pain points. Focuses on Shell, SQL, Java, and delivery, turning complexity into simplicity and making efficiency fun.
This tutorial provides a step-by-step guide for beginners to install Git, Node.js 22.x, and Python 3.9+ on Windows as prerequisites for deploying the OpenClaw AI agent framework locally, including system requirements, verification commands, and common troubleshooting tips.
A microservice gateway misidentifies legitimate requests as replay attacks due to client-server time drift, causing 401 errors; the article explains the core logic, offers an emergency manual time sync, then details three progressive fixes: tiered gateway time thresholds, idempotency keys to eliminate time dependence, and internal NTP deployment for permanent synchronization.
This article defines the implementation engineer role as a blend of technical deployment, requirements translation, and project management, outlines three career levels from execution to leadership, describes four career paths including project management, pre-sales, product management, and industry expertise, and offers three practical tips for newcomers to avoid rework, earn respect through professionalism, and master documentation.
This article provides a zero-code, 30-minute emergency fix for high-risk message queue vulnerabilities flagged by security scanners, using network-layer restrictions, access control, version hiding, and Docker/K8s hardening to block exploit paths without touching business code.
This guide explains Nginx core configuration after one-click deployment, covering config file locations across OSes, the three-layer structure (global, events, HTTP), and three practical scenarios: static resource hosting with try_files for SPA routing, reverse proxy for CORS resolution and backend hiding, and multi-site deployment via multiple server blocks, plus troubleshooting tips for common errors.
This tutorial covers Nginx fundamentals, manual and automated deployment on Linux and macOS (online/offline), a production-ready Bash script with port configuration and systemd auto-start, plus common commands and five frequent pitfalls with fixes.
This guide covers MinIO object storage deployment with ready-to-use automation scripts for both standalone and distributed modes, including environment checks, binary download methods, systemd service configuration, and cluster requirements for production use.
This guide covers Kafka core concepts, two deployment approaches (traditional ZooKeeper-based and modern KRaft mode), detailed step-by-step installation commands for Linux and macOS, environment verification scripts, and a production-ready KRaft automation script with systemd integration.
This article demonstrates a complete pipeline for generating 10GB of structured SQL test data with Python, splitting it into manageable chunks, and importing it into MySQL using both Shell and pure-Python parallel bulk-load scripts with progress tracking and resume capability.
This article teaches three advanced Shell scripting techniques—error protection with set -euo pipefail, professional logging with timestamps and levels, and trap-based cleanup—to transform basic scripts into production-robust automation, demonstrated through a complete log backup script with retry logic, disk checks, and lock files.
