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DevOps Operations Practice

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Latest from DevOps Operations Practice

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DevOps Operations Practice

May 21, 2025 · Operations

Prometheus vs Zabbix: Architecture, Data Collection, Storage, and Alerting Comparison for Enterprise IT Operations

This article compares Prometheus and Zabbix across architecture design, data collection methods, storage engines, scalability, deployment complexity, alerting mechanisms, and suitable scenarios, helping operations teams choose the most appropriate monitoring solution for cloud‑native or traditional enterprise environments.

IT OperationsPrometheuscomparison

0 likes · 7 min read

Prometheus vs Zabbix: Architecture, Data Collection, Storage, and Alerting Comparison for Enterprise IT Operations

DevOps Operations Practice

May 6, 2025 · Operations

Kubernetes Certificate Management: Common Pitfalls, Detection Methods, and Renewal Procedures

This article explains why Kubernetes certificates often become hidden "time bombs," describes the typical failures caused by expired certificates, and provides practical methods to detect upcoming expirations and safely renew or replace them to keep clusters running smoothly.

Kubernetescertificate managementkubeadm

0 likes · 6 min read

Kubernetes Certificate Management: Common Pitfalls, Detection Methods, and Renewal Procedures

DevOps Operations Practice

Apr 11, 2025 · Operations

Promtool: A Complete Guide to Configuration Validation, Rule Checking, TSDB Management, and Debugging for Prometheus

This article introduces Promtool, the multifunctional command‑line utility bundled with Prometheus, and explains how to validate configurations, check and test rules, query metrics, manage the TSDB, run unit tests, use debugging helpers, install the tool, and apply best‑practice recommendations.

Configuration ValidationPrometheusPromtool

0 likes · 5 min read

Promtool: A Complete Guide to Configuration Validation, Rule Checking, TSDB Management, and Debugging for Prometheus

DevOps Operations Practice

Feb 23, 2025 · Information Security

Understanding Network Attacks: Definitions, Common Types, and Prevention Strategies

This article explains what network attacks are, outlines the most common attack types such as malware, DoS/DDoS, phishing, SQL injection and DNS tunneling, and provides practical prevention measures including regular updates, firewall configuration, VPN use, and security awareness training.

DDoSSQL injectioncyber attacks

0 likes · 6 min read

Understanding Network Attacks: Definitions, Common Types, and Prevention Strategies

DevOps Operations Practice

Feb 6, 2025 · Operations

Achieving Resumable File Transfers with SCP Using Rsync, Split, and Tmux

This article explains why SCP cannot resume interrupted transfers and provides practical alternatives—including rsync with the --partial option, splitting files with the split command, and keeping sessions alive with tmux—to achieve reliable, resumable file transfers on Linux systems.

TMUXresumable transferrsync

0 likes · 6 min read

Achieving Resumable File Transfers with SCP Using Rsync, Split, and Tmux

DevOps Operations Practice

Jan 2, 2025 · Operations

Career Paths for Operations Professionals After Age 35

The article compiles various Zhihu users' perspectives on how operations engineers can navigate career transitions after age 35, emphasizing the importance of aligning with larger companies, developing technical or managerial expertise, leveraging specialized infrastructure knowledge, and considering alternative paths such as product, project, or data roles.

Careermanagementmid‑career

0 likes · 7 min read

Career Paths for Operations Professionals After Age 35

DevOps Operations Practice

Dec 17, 2024 · Backend Development

From CPU Alert to Resolution: A Step‑by‑Step Backend Performance Debugging Guide

This article recounts a midnight CPU alert incident and walks through systematic backend troubleshooting—from initial system checks and JVM profiling to algorithm refactoring, database indexing, Docker‑based isolation, and proactive monitoring—demonstrating how to restore service performance and prevent future outages.

DatabaseDockerJVM

0 likes · 7 min read

From CPU Alert to Resolution: A Step‑by‑Step Backend Performance Debugging Guide

DevOps Operations Practice

Dec 16, 2024 · Cloud Native

Analysis of OpenAI's December 2024 Outage: Kubernetes Control Plane Overload and Mitigation

The December 11, 2024 OpenAI outage, caused by a misconfigured monitoring service that overloaded the Kubernetes control plane, led to a four‑hour service disruption and was resolved through cluster scaling, API blocking, and resource expansion, highlighting critical infrastructure risks for large‑scale cloud‑native operations.

KubernetesOpenAIcontrol plane

0 likes · 7 min read

Analysis of OpenAI's December 2024 Outage: Kubernetes Control Plane Overload and Mitigation

DevOps Operations Practice

Dec 8, 2024 · Information Security

Incident Report: Investigating and Removing a Server Malware Causing 100% CPU Usage

This article documents a step‑by‑step investigation of a compromised Linux server that exhibited 100% CPU usage, detailing process, network, and startup‑service analysis, the discovery of a cryptomining malware, and the complete removal procedure.

Incident Responsecpuinformation security

0 likes · 5 min read

Incident Report: Investigating and Removing a Server Malware Causing 100% CPU Usage

DevOps Operations Practice

Nov 7, 2024 · Databases

Three Free Open-Source MySQL Client Tools: MySQL Workbench, DBeaver, and phpMyAdmin

This article introduces three free, open-source MySQL client tools—MySQL Workbench, DBeaver, and phpMyAdmin—detailing their main features, cross‑platform support, and suitability for developers and administrators seeking powerful yet user‑friendly database management solutions.

DBeaverDatabase ManagementMySQL

0 likes · 5 min read

Three Free Open-Source MySQL Client Tools: MySQL Workbench, DBeaver, and phpMyAdmin