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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.

If you’ve ever worked on the command line and needed to test an API, download a file, or just peek under the hood of a website—chances are you’ve met curl. But if you’re new to it: curl (short for “Client URL”) is a lightweight yet powerful command-line tool for transferring data across URLs. It supports …

Read More about Use curl Command Every Day? These Tips Will Instantly Simplify Your Workflow

A critical vulnerability in Redis just put hundreds of thousands of servers at risk — and it doesn’t require a single line of code from the attacker. If your infrastructure relies on Redis (and chances are, it does), you need to read this. Redis is one of the most popular in-memory databases in the world. …

Read More about CVE-2025–21605 – Critical Redis Bug Discovered — Could Let Anyone Crash Your Server

If you’ve ever done network security work—or even just been curious about what’s going on across your local network—you’ve likely heard of Nmap. Short for Network Mapper, Nmap is a beloved open-source tool used by security professionals, sysadmins, ethical hackers, and network tinkerers alike. And guess what? It just got a seriously cool upgrade. With …

Read More about The New Nmap 7.96 Is Here: Faster Scans, Dark Mode, and More

Docker Desktop 4.41 is here, and it’s packed with upgrades — especially for Windows users. Whether you’re building containers, testing microservices, or running local AI models, this release makes life easier. And yes, you can now grab Docker Desktop directly from the Microsoft Store. What’s New in Docker Desktop 4.41? The headline feature: Model Runner …

Read More about Docker Desktop 4.41: What’s New and Why It’s a Big Deal for Your AI Workflows

MySQL has come a long way since the introduction of the 8.0 series. With the release of MySQL 8.4 in April 2024, Oracle has delivered a Long-Term Support (LTS) release that’s poised to become the backbone for enterprise-grade deployments over the next decade. While version 8.4 may seem like a minor bump, it marks a …

Read More about What’s New in MySQL 8.4 LTS: Key Enhancements Explained

Guess what? The latest flavor of Ubuntu has just dropped! It’s called “Plucky Puffin” (how cute is that?), and it’s officially out and about, all powered up by the shiny new Linux kernel 6.14. This release has a special meaning, as it’s dedicated to Steve Langasek, a longtime legend on the Ubuntu release team and …

Read More about Ubuntu 25.04 (Plucky Puffin) Now Available, This Is What’s New

You know how things are always moving in the world of Linux? Well, get this: there’s a pretty significant shift happening that’s more than just shuffling software around. Arch Linux, that distro known for living on the bleeding edge, has officially given Redis the boot from its main software stash ([extra] repository) and welcomed Valkey …

Read More about Is This the End for Redis? More Linux Distros Are Saying Goodbye

If you’re still using ifconfig, stop. This command was officially deprecated in Linux kernel 2.4 - way back in 2001. When it comes to managing network configurations in Linux today, two popular tools stand out: ip and nmcli. Both are powerful, but they serve different purposes and are used in different scenarios. Picking the wrong one can …

Read More about IP Command or nmcli? Which One Should You Use for Linux Networking?

🔧 Intel CEO Restructures Leadership, Appoints Sachin Katti as CTO Intel’s new CEO, Justin (Liwu) Chen, is streamlining the company’s executive structure in his first major leadership move. Under the new model, heads of Intel’s Data Center, AI, and Client Computing groups will report directly to Chen. Notably, Sachin Katti—formerly in charge of Intel’s networking …

Read More about Today in Tech: Power Moves at Intel, Cheaper AI from OpenAI, Google’s Domain Exit

Welcome to our daily briefing on the latest developments in technology. In today’s edition, Tesla shifts its strategic focus away from mass-market EVs, OpenAI unveils new AI models with advanced reasoning and visual analysis capabilities, and Google faces a major legal challenge in the UK over its dominance in search advertising. We also cover significant …

Read More about Today in Tech: Tesla Kills the Model 2, OpenAI Gets Visual, Figma Gets Defensive, Google Gets Sued and More