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
Abstract This article discusses the definition of EMC, testing methods for microcontroller application systems, the application of new EMC devices and materials, and troubleshooting techniques. Anyone involved in the research, development, production, or supply of electronic products must conduct EMC electromagnetic compatibility testing. Introduction EMC, or Electromagnetic Compatibility, refers to the ability of a device … Read more
🚀 Essential Linux Command Collection for Big Data Development: A Must-Read Guide for Programmers! In big data development, Linux is our “fighter jet”.Core components like Hadoop, Hive, Kafka, Flink, and Spark all run in a Linux environment.If you are not familiar with Linux commands, troubleshooting issues, optimizing performance, or even simple data file operations can … Read more
In the daily use and maintenance of Linux systems, mastering USB device information is key to troubleshooting and managing external devices. This article will introduce three commonly used commands to help you quickly obtain USB device details and efficiently manage devices. 1. lsusb: Quickly View Core Information lsusb is the most basic command for viewing … Read more
Recently, my WeChat has been flooded with help requests from friends! All of them are about Bluetooth connection troubles: headphones not connecting, mouse intermittently disconnecting, file transfers stuck at 99%… These issues are driving people crazy! As someone who has been “fixing computers” for friends for five years, I’m going to share all my practical … Read more
The solutions for an unresponsive LCD monitor can be categorized into the following five types, prioritized as follows: 1. Power and Connection Check Power Cable and Socket Check if the power cable is properly plugged in, try changing the power socket or power cable to rule out power supply issues.。 Monitor Settings Check brightness, contrast, … Read more
The final part of the introduction to troubleshooting is here. Friends who haven’t read the first two parts can check them out first: Introduction to PLC Troubleshooting: Basic Techniques and Advanced Strategies (Part 1) Introduction to PLC Troubleshooting: Basic Techniques and Advanced Strategies (Part 2) The main content is as follows: 2. Advanced Methods of … Read more
A virtual machine encounters a network connection failure issue, solution one. 1.Check the network management service systemctl list-units | grep network If the following result appears, it indicates that network.service is in a failed state. 2.Restart network.service sudo systemctl restart network.service 3. Check again systemctl list-units | grep network If the following result appears, it … Read more
How to Operate the Control Cabinet of a Shaking Table? A Practical Guide with PLC and Touch Screen Easy to Understand for Beginners! In industries such as mineral processing and coal selection, the shaking table is the “main sorting force,” and its “brain”—the PLC and touch screen control cabinet—directly determines the sorting efficiency and product … Read more
Introduction This article is recorded in February 2025 and is documented here. In the production environment, one of the business system servers has had its memory consistently around 95% for the past few months. Last year, this system was reported as an innovative system, so preparations for the innovative components began right after the New … Read more