Focused on Linux system operations and maintenance technology exchange, regularly publishing in-depth technical articles covering core areas such as system architecture, performance optimization, and security hardening. Whether you are a beginner or a seasoned expert, you can find valuable resources to enhance your skills and solve problems here. Follow us to explore the mysteries of Linux operations!
This chapter categorizes system logs into nine types, outlines a centralized logging pipeline with collection, cleaning, storage, and analysis layers, and emphasizes structured fields, correlation IDs, and sensitive data protection to enable effective incident investigation and business tracing.
This chapter from "Architecture Fundamentals: From Requirements to Architecture" dissects login system design, separating authentication, session management, and authorization, covering multi-factor methods, SSO, OAuth 2.0, QR-code login, multi-device sessions, and a practical design checklist with common pitfalls.
This chapter summary traces the evolution from monolith to microservices, detailing core components like service discovery, circuit breakers, gateways, and observability, while stressing that adoption must be driven by business complexity and team needs — not service count — and provides a practical checklist for splitting and transformation.
This chapter from "Architecture Fundamentals" defines four quality attributes — high availability, high scalability, high concurrency, and security — as the pillars of large-scale internet architecture, emphasizing that normal traffic tests only prove functional correctness, not resilience. It details the trade-offs between these attributes, concrete implementation patterns for each, and a practical checklist for deriving architecture from measurable business goals rather than stacking technologies.
This article explores why years of coding experience don't automatically produce architect-level judgment, detailing the shift from local implementation to global abstraction, boundary setting, and trade-off decisions, and provides a four-step training loop with concrete daily practices and common pitfalls to avoid.
This tutorial covers Jenkins distributed build theory, agent concepts, connection methods, and step-by-step Docker Compose setup for Inbound Agents, including verification, troubleshooting, and three practical build approaches: Freestyle, Pipeline, and Shared Library.
This tutorial guides you through deploying Keycloak identity provider using Docker Compose on CentOS 7.9, covering environment setup, docker-compose.yml configuration with start-dev mode, admin initialization, port mapping, service verification, and common troubleshooting tips for development and testing environments.
This tutorial demonstrates how to replace Jenkins polling with GitLab Webhook event-driven triggers across Freestyle, Pipeline, and Shared Library job types, covering docker-compose networking, secret token authentication, and troubleshooting common 403 and invalid URL errors.
This tutorial demonstrates three methods to enforce SonarQube quality gates in Jenkins pipelines—freestyle job chaining, Pipeline waitForQualityGate step, and shared library encapsulation—so deployments only proceed when code meets coverage, duplication, and severity thresholds.
This tutorial covers the theory and three practical methods for triggering SonarQube code scans from Jenkins — Freestyle jobs, Pipeline scripts, and Shared Libraries — using a Maven project example in a Docker Compose environment with detailed configuration steps.
