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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.

When I first started working with Linux servers, managing time synchronization seemed like a daunting task. My team had always relied on the traditional ntpd service for Network Time Protocol (NTP), and it worked well enough. But when Red Hat Enterprise Linux (RHEL) 8 came around and the focus shifted to chronyd from the Chrony …

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Well, folks, Elon Musk’s new AI model has just hit the scene, and it’s causing quite a stir. Forget the usual tech updates—this one’s so wild that Musk has already released hilarious images of himself and Trump dancing on the streets. (Yes, you read that right!) Here’s the scoop: With the launch of Grok 2.0, …

Read More about Musk’s New AI Model Takes the Internet by Storm

Passing the Google system design interview as a non-programmer might seem like a formidable challenge, but it’s entirely achievable with the right approach. Many professionals from diverse backgrounds have cracked this code by leveraging innovative strategies and a deep understanding of core system design concepts. Success Stories of Non-Programmers Who Passed Google System Design Interviews …

Read More about Success Stories of Non-Programmers Who Passed Google System Design Interviews

Ever found yourself drowning in a sea of terminal commands, struggling to remember the exact syntax or wondering how to chain multiple commands efficiently? I’ve been there too. I remember my first deep dive into shell scripting, where I felt overwhelmed by the sheer number of tools and techniques available. It was only after countless …

Read More about By mastering these shell techniques, you can also become a senior engineer

When I first started working with Linux, I found myself spending a lot of time on repetitive tasks and struggling to manage various aspects of my system efficiently. I was constantly searching for ways to streamline my workflow and improve productivity. After experimenting with different commands and techniques, I discovered five essential Linux tips that …

Read More about These Five Linux Tips Have Dramatically Improved My Work Efficiency

When I first started using Linux, I was overwhelmed by its complexity and the sheer volume of commands and configurations. I spent countless hours fumbling through documentation and forums, trying to find the shortcuts and tweaks that would make my workflow smoother. It wasn’t until I stumbled upon a few key tips and tricks that …

Read More about Do You Know These Linux Tips and Tricks?

Hello and welcome to Howtouselinux Weekly Newsletter! Here’s a quick look at what’s happening this week in the world of tech and beyond. Let’s dive in! 📱 Big Tech & Startups: ChatGPT’s Mobile App Takes Off: ChatGPT’s mobile application experienced its most successful month yet following the release of GPT-4o. The app raked in a …

Read More about Weekly Tech Digest: Reddit’s Makeover, ChatGPT’s App Surge, and the Future of AI Research

Hey there, internet folks! Let’s chat about Reddit and their plans to make more money. You know, the site we love for all those interesting threads and communities? Well, they’re thinking about showing more ads and maybe even putting some cool stuff behind a paywall. So, Reddit recently shared how they did money-wise in the …

Read More about Reddit’s Road to Profits: More Ads and the Possibility of Paywalls

Ansible is an open-source automation tool that helps in configuring, deploying, and managing software applications across various servers. It uses SSH for communication, so there’s no need to install an agent on remote machines. Here’s a simple guide to get started with Ansible for beginners: What is Ansible? Ansible is an IT automation tool that …

Read More about Getting Started with Ansible: A Simple Guide for Beginners