The article reviews major 2024 service outages—from Alibaba Cloud to OpenAI—highlights their root causes, and offers practical operations strategies such as disaster recovery, regular backups, load balancing, monitoring, performance tuning, and capacity planning to reduce future downtime.
This guide explains how to systematically diagnose Linux performance issues using tools such as top, vmstat, perf, and flame graphs, covering CPU, memory, disk I/O, network, and load analysis, and demonstrates a real-world nginx case study with step‑by‑step commands and visualizations.
This article presents a collection of practical Bash scripts that cover file consistency checks, scheduled log management, network traffic monitoring, numeric analysis, FTP downloads, user input handling, Nginx 502 detection, variable assignments, bulk file renaming, text processing, port scanning, word filtering, command menus, SSH automation with Expect, user creation, Apache monitoring, password rotation, iptables rate‑limiting, and IP validation, providing sysadmins with ready‑to‑use solutions for everyday Linux operations.
This article shares ten practical operations strategies—including change rollbacks, safe handling of destructive commands, prompt customization, rigorous backup and verification, production environment discipline, careful handovers, robust alerting, cautious automatic failover, meticulous checks, and simplicity—to dramatically improve system reliability and availability.
This guide outlines a comprehensive, automated strategy for operating more than ten thousand network devices, covering asset documentation, topology planning, unified monitoring, automation scripts, emergency response, security management, regular maintenance, staff training, and visual management tools.
This article introduces ten indispensable tools for operations engineers, detailing each tool's functionality, ideal use cases, key advantages, and practical examples, while also providing code snippets and visual illustrations to help readers understand and apply them effectively.
This guide outlines essential steps for creating a robust, high‑availability website architecture, covering domain acquisition, DNS management, CDN deployment, image caching, data center selection, monitoring, DDoS mitigation, redundancy, server configuration, database replication, testing environments, security practices, and operational tooling.
This article consolidates community‑sourced Linux performance optimization practices, covering key factors that affect system speed, rapid troubleshooting steps for CPU, memory, disk and network issues, load‑analysis methods, top‑resource identification commands, memory‑stat nuances, swap usage scenarios, and detailed TCP tuning recommendations.
This article reviews five leading log management solutions—Graylog, LogDNA, ELK Stack, Grafana Loki, and Splunk—detailing their core components, key features, and why they are valuable for monitoring, troubleshooting, and securing modern IT environments.
This article introduces ten indispensable tools for operations engineers, detailing each tool's functionality, suitable scenarios, advantages, and real‑world examples, and includes practical code snippets to help automate, monitor, and manage infrastructure efficiently.
This guide presents a collection of practical Linux shell commands and scripts for locating and moving files, batch extracting archives, using sed for text manipulation, checking directories, monitoring disk usage, analyzing logs, and configuring firewalls, all illustrated with clear examples and explanations.
This article compiles seventeen practical Linux administration techniques—from batch file handling and directory checks to log analysis, disk monitoring, firewall rules, and network capture—each illustrated with ready‑to‑run shell commands and concise explanations for sysadmins.
This guide walks through essential Redis operations, covering real‑time monitoring with the INFO command and Prometheus‑compatible exporters, data migration using Redis‑shake, consistency verification via Redis‑full‑check, and comprehensive cluster management with CacheCloud, providing practical tools for reliable Redis administration.
This article reviews a curated set of open‑source Kubernetes tools—including Helm, Flagger, Kubewatch, Gitkube, kube‑state‑metrics, Kamus, Untrak, Scope, Dashboard, Kops, cAdvisor, Kubespray, K9s, Kubetail, PowerfulSeal, and Popeye—that enhance management, security, monitoring, and deployment within DevOps pipelines.
An online supermarket startup evolves its simple monolithic website into a fully distributed microservice architecture, detailing each transformation stage, the challenges encountered—such as code duplication, database bottlenecks, deployment complexity—and the solutions like service decomposition, monitoring, tracing, circuit breaking, and service mesh.
Drawing from three and a half years of operations work, this article shares hard‑earned best practices on testing, backups, security, monitoring, performance tuning, and the right mindset to avoid costly mistakes such as data loss, service outages, and security breaches.
This article explains how Python can automate common operations tasks—remote command execution, log parsing, system monitoring with alerts, batch software deployment, and backup/recovery—providing code examples and practical tips to improve efficiency and reduce manual errors.
An in‑depth comparison of Prometheus and Zabbix examines their histories, architectures, data storage, scalability, and container support, highlighting Prometheus’s cloud‑native pull model and Go‑based performance versus Zabbix’s mature, relational‑database approach, to help teams choose the right monitoring solution.
This guide introduces Zabbix 6.2’s latest features—including issue suppression, CyberArk vault integration, AWS EC2 templates, and enhanced proxy management—then provides a comprehensive, command‑line walkthrough for installing and configuring Zabbix 6.2 on a CentOS 8 server, covering prerequisites, database setup, web UI, and service startup.
Prometheus is an open‑source monitoring solution that covers metric exposition, scraping, storage, querying, visualization, and alerting, and this guide walks through its architecture, configuration, custom exporters, PromQL queries, Grafana integration, and alert management, providing a comprehensive introduction for developers and ops engineers.