This extensive training program covers everything a data center operations engineer needs—from foundational infrastructure management and server hardware maintenance to advanced network configuration, security hardening, monitoring, fault handling, and practical hands‑on skills for real‑world challenges.
This guide explains how to create a shell script that checks SSL certificate expiration dates and integrates it with Zabbix by configuring a user parameter, testing the script, and setting up monitoring items, triggers, graphs, and alerts to ensure services remain available.
This article presents a detailed curriculum covering fundamental infrastructure, cluster architecture, automation, log collection, Linux system administration, containerization, monitoring, security, and related DevOps tools across multiple phases and daily modules for comprehensive SRE training.
This guide explains how to troubleshoot Filebeat failing to start due to an EOF error while loading registrar state, by inspecting logs, resetting the registry directory, and restarting the service on a Linux host.
This guide explains how to deploy RabbitMQ on Kubernetes and improve its performance through Helm installation, resource tuning, monitoring, scaling, security hardening, and advanced configuration techniques, providing practical code examples for each step.
An extensive overview of essential DevOps tools for 2024, covering categories such as version control, CI/CD, container orchestration, configuration management, infrastructure as code, monitoring, collaboration, artifact repositories, testing, security, deployment automation, serverless platforms, and database management to guide effective tool selection.
This article explains the origins of GitOps, defines its core principles of declarative infrastructure, versioned desired state, automated approval, and compliance monitoring, and outlines its benefits and a concrete practice using tools such as GitLab, ArgoCD, Kubernetes, Terraform, Prometheus, and Grafana.
The article introduces Promoter, a Go‑based webhook that fetches Prometheus metrics, renders alert graphs with gonum/plot, stores the images in S3‑compatible object storage, and embeds them in DingTalk notifications, providing deployment instructions, template customization, and core implementation details.
This guide explains how to complement Prometheus white‑box monitoring with black‑box probes by deploying the Blackbox Exporter in a Kubernetes cluster, configuring ConfigMaps, Deployments, Services, and Prometheus scrape jobs for HTTP, DNS, TCP, and ICMP checks, and using annotations for automatic service discovery.
This article explains how to monitor system resources using commands like top, iostat, and vmstat, shows how to enable and view MySQL slow query logs, offers troubleshooting tips, and also promotes a ChatGPT community with related services and offers.
This article explains how database administrators can monitor system resource usage with commands like top, iostat, and vmstat, and configure MySQL slow query logging, including enabling the log, setting thresholds, viewing logs, and applying best‑practice recommendations for analysis and issue resolution.
This article explains why centralized log collection is essential for multi‑environment services, introduces Graylog as a lightweight alternative to ELK, details Filebeat's role and workflow, provides configuration examples, shows how to deploy both Filebeat and Graylog via Docker or packages, and demonstrates integration with Spring Boot and log search techniques.
This article walks through a complete, step‑by‑step solution for collecting Nginx access logs, converting them to JSON, shipping them with Promtail to Loki, and visualizing the data in Grafana, including Docker deployment, dashboard import, and world‑map plugin installation.
This article introduces Redis Sentinel as the official high‑availability solution for Redis, explains its core functions, provides configuration examples, compares three ways to receive failover notifications (script, client subscription, and indirect service), and offers design recommendations for robust production deployments.
This article introduces Loki, Grafana Labs' open‑source, horizontally scalable log aggregation system, compares it with ELK/EFK, explains its architecture and components, and provides step‑by‑step deployment instructions with Promtail configuration and Grafana integration for Kubernetes environments.
This comprehensive guide explores Prometheus as a cloud‑native monitoring solution for Kubernetes, covering core principles, exporter selection, configuration snippets, Grafana dashboard creation, capacity planning, high‑cardinality challenges, rate calculations, prediction functions, high‑availability designs, and integration with Alertmanager and other operational tools.
This article presents a comprehensive overview of risk control model building for online small‑loan scenarios, covering pre‑loan, in‑loan and post‑loan stages, the associated data pipelines, model deployment strategies, optimization attempts, and monitoring frameworks to ensure accuracy, stability and effectiveness.
This article explains the concepts and importance of observability, introduces the Vector data‑pipeline tool and its architecture, demonstrates how to configure sources, transforms and sinks, and shows how to integrate Vector with the Honghu platform to build a complete, real‑time monitoring solution for modern distributed systems.
This article provides a step‑by‑step tutorial on what Grafana is, its common monitoring scenarios, how to install it on Linux, Windows, macOS or via Docker, configure data sources such as Prometheus, and create or import dashboards for system and business metric visualization.
This article outlines eight fundamental microservice governance techniques—including service registration and discovery, load balancing, circuit breaking, security, monitoring, configuration management, and API gateway—to help architects design reliable, secure, and maintainable cloud‑native systems.