Practical Guide to Viewing and Controlling Processes in Linux! Master Process Management with 5 Commands to Eliminate Lag and Crashes

Practical Guide to Viewing and Controlling Processes in Linux! Master Process Management with 5 Commands to Eliminate Lag and Crashes In daily Linux operations, process management is one of the core skills — when the system lags, services become unresponsive, or resource usage anomalies need to be investigated, it is essential to “view processes” to … Read more

Comprehensive Guide to Diagnosing Linux I/O Performance Bottlenecks: A Systematic Solution from Theory to Practice

Comprehensive Guide to Diagnosing Linux I/O Performance Bottlenecks: A Systematic Solution from Theory to Practice

Introduction Detailed Explanation of General Methodologies for Diagnosing Linux System I/O Performance Issues Check Server Load View I/O Utilization Clearly Identify I/O Processes Supplement: Other Useful I/O Analysis Tools Conclusion References Introduction When you notice that certain I/O processes in the production environment are experiencing decreased read/write efficiency, for example: Increased query time in MySQL … Read more

Linux System ‘Emergency Room’: A Comprehensive Review of the ‘Boot Storm’ Triggered by NVIDIA Driver Installation

Linux System 'Emergency Room': A Comprehensive Review of the 'Boot Storm' Triggered by NVIDIA Driver Installation

Introduction This is a deep troubleshooting guide for Linux users, especially those using distributions like Pop!_OS and Ubuntu. It is based on a real experience of a system ’emergency’ that lasted several days, triggered by an interruption during the installation of NVIDIA drivers. We will start from the initial ‘unable to boot’ situation and peel … Read more

Can’t Find Linux Drivers? These Commands Accurately Locate All Hardware Drivers

Can't Find Linux Drivers? These Commands Accurately Locate All Hardware Drivers

As a Linux system administrator, have you ever encountered these frustrating scenarios: the newly installed system does not recognize the wireless network card, external devices do not respond when plugged in, or you want to update a driver but do not know which version is currently in use? In fact, driver information is hidden within … Read more

Troubleshooting a Client Environment Issue: Some HTTP GET Requests Are Blocked?

Troubleshooting a Client Environment Issue: Some HTTP GET Requests Are Blocked?

Hello everyone, today I will share the troubleshooting process and thoughts regarding an issue in a client’s environment, hoping it can help everyone in similar incidents in the future. For related series of troubleshooting articles, please refer to the following: (Must-read) Troubleshooting Network Issues in Production Environments How to Debug Running Golang Programs? Severe Issue … Read more

Introduction to Linux System Emergency Response: Essential ‘System First Aid’ Skills You Must Master Amidst the Wave of Localization

Introduction to Linux System Emergency Response: Essential 'System First Aid' Skills You Must Master Amidst the Wave of Localization

1. Introduction: When Linux devices encounter issues, do you feel “at a loss”? When operations and maintenance personnel log into domestic Linux servers, they often find that SSH connections frequently fail, yet they do not know which command to use to check the login logs; small and medium-sized enterprises’ NAS devices running Ubuntu display a … Read more

Dirty ABS Sensor: Warning Light Activation and ABS Failure

Dirty ABS Sensor: Warning Light Activation and ABS Failure

Have you ever encountered this awkward situation: in the morning, rushing to work, you start the engine, and suddenly that little yellow “ABS” light on the dashboard pops up—refusing to turn off. You feel a jolt in your heart—oh no, is it time for another costly repair? [Facepalm] Don’t panic, my friend, hold off on … Read more

Can You Claim to Understand Electrical Maintenance Just Because You Know PLC Programming? Don’t Underestimate Your Boss!

Can You Claim to Understand Electrical Maintenance Just Because You Know PLC Programming? Don't Underestimate Your Boss!

“Engineer Wang, please come to the workshop! This new equipment has broken down again. Xiao Li has been troubleshooting for over half an hour, checked the program eight hundred times, but still can’t find the problem!” The voice on the other end was Production Director Lao Zhang, nearly frantic. I put down my teacup and … Read more

Common Network Tools in Linux

Common Network Tools in Linux

Common Network Tools in Linux In Linux systems, network management is one of the core skills for system administrators and developers. Linux provides a rich set of network tools for diagnosing network issues, monitoring traffic, configuring interfaces, and testing connectivity. According to a survey by Stack Overflow, over 70% of Linux users frequently use network … Read more