Skip to Content

David Cao

David is a Cloud & DevOps Enthusiast. He has years of experience as a Linux engineer. He had working experience in AMD, EMC. He likes Linux, Python, bash, and more. He is a technical blogger and a Software Engineer. He enjoys sharing his learning and contributing to open-source.

As a Linux system engineer, I’m sure you’ve all used the top command. It’s been the go-to tool for decades—simple, reliable, and always there when you need it. But have you ever noticed one thing? Occasionally, you might spot a process with CPU usage skyrocketing to 150%, 200%, or even 400%! Surprised? So what’s going …

Read More about  If Your CPU Usage is Over 100%, Read This Before Freaking Out!

When I first started working with Kubernetes, it felt like trying to decode a secret language. I remember the days of grappling with the basics, especially when it came to understanding pods. I’d set up my application, only to get tangled in the terms and concepts like pods, containers, and deployments. You’re not alone if you’ve faced …

Read More about Top 10 Kubernetes Pod Concepts That Confuse Beginners

If you’re a Linux user, chances are you’ve used top to check your system’s performance. It’s been the go-to tool for decades—simple, reliable, and always there when you need it. But let’s face it: top feels like a flip phone in the age of smartphones. It works, but there’s something better out there. If you’re …

Read More about Still Using top to Monitor Linux Performance? Discover Better Tools!

The AI landscape is evolving quickly, and DeepSeek R-1 is one of the latest models capturing attention from both enthusiasts and professionals. Developed by DeepSeek, this open-source language model has been making waves for its impressive capabilities. But what exactly is DeepSeek R-1, and how can you use it effectively? Let’s dive in! How to …

Read More about How to Run DeepSeek R-1 Locally and Securely

DeepSeek has recently emerged as a significant player in the AI landscape, challenging the dominance of AI companies with its innovative models and efficient approach to training. This article will focus on DeepSeek and its latest reasoning model, R1. DeepSeek’s Breakthroughs DeepSeek’s rise to prominence is marked by several key breakthroughs that have shaken the …

Read More about DeepSeek and its AI Model: The Untold Story

If you often feel exhausted and struggle to focus for even five minutes, this guide is for you. By combining insights from various fields, I’ll share the most useful tips with you. It’s actually as simple as three steps. You only need to spend three to five minutes, and you will gain insights that will …

Read More about Small Changes, Big Results: Quick Hacks to Boost Energy and Productivity

Secure Shell (SSH) is a powerful and widely used protocol that enables secure communication over a network. Whether you’re managing servers, deploying code, transferring files, or running remote applications, SSH is an essential tool for every IT professional and developer. While the basic ssh [email protected] command is familiar to many, SSH offers a wide array …

Read More about Work Smarter, Not Harder: Advanced SSH Techniques to Save Time and Effort

What is SSH and How Does It Work? SSH (Secure Shell) is a powerful tool that lets you securely connect to another computer over a network. Imagine you have a computer in the moon and need to access a server in another city or country. Instead of physically going there, SSH allows you to control …

Read More about Using SSH Every Day? Explore Advanced Features to Simplify Your Routine

If you’re running a Linux instance and suspect that the bandwidth is being overused, you can use a few tools to investigate what’s causing the high traffic. Tools like SAR, iftop, and NetHogs can help you identify the processes responsible for the load and take action to fix the issue. Common Scenarios High bandwidth usage: …

Read More about How to Track and Fix High Network Traffic on Your Linux Instance

You’ve been using Linux for a while, so you know the basics: ls, cd, cp.But now you’re stepping up your game. You need more. You’re ready to unlock the power of the Linux command line to elevate your workflow—whether it’s programming, system administration, or just being more efficient in your day-to-day tasks. Well, that’s exactly …

Read More about Still Using Old Linux Commands? Discover These New Powerful Command Line Tips!