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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.

Last weekend, something unexpected disrupted the calm routine of Linux kernel development. And it all started with a blunt message from Linus Torvalds: “Kees, what’s going on here?” Yes, that was from the Linux kernel mailing list. But before diving into the details, let’s rewind a bit. ⚙️ Behind the Scenes: How Linux Kernel Code …

Read More about Linus Torvalds Just Called Out 330 Unexpected Commits During Kernel Merge

Linux is known for being solid, secure, and transparent. That reputation didn’t come easy — it’s been earned over decades. But as new features get added, sometimes even well-meaning innovations introduce unexpected side effects. That’s exactly what’s happening with io_uring, a performance-boosting feature in the Linux kernel that’s now being quietly misused. Researchers recently demonstrated …

Read More about This New Linux Feature Opens a New Backdoor in Linux

It’s been three years since Red Hat launched RHEL 9, and now the enterprise Linux giant is back with a major new release: Red Hat Enterprise Linux 10, powered by Linux kernel 6.12. If you’re running infrastructure at scale, especially in the cloud, this release is packed with forward-looking features worth your attention. But let’s …

Read More about Red Hat Enterprise Linux 10 Is Here: What Is New and Why Is It Better Than Expected?

If you’ve been keeping an eye on modern replacements for aging system tools, you’ve probably heard of uutils, the Rust-based reimagining of GNU Coreutils. This project has been quietly gaining momentum—and now, with Ubuntu 25.10 planning to ship it by default, things are about to get a lot more interesting. Today marks a major milestone …

Read More about Rust Coreutils 0.1 Released With Big Performance Gains – Can Match Or Exceed GNU Speed

Time might seem like a small detail in your operating system — something you rarely think about unless your clock is wrong. But in reality, accurate timekeeping is essential to everything from file timestamps and system logs to encryption and security protocols. And now, with Ubuntu 25.10, the way your system keeps time is getting …

Read More about GoodBye Old NTP Client — Ubuntu Is Changing How It Keeps Time

Redis, the company behind the blazing-fast key-value database that powers everything from caching to AI workloads, is stepping back into the open source world — sort of. Starting with Redis 8, the company is adding the GNU Affero General Public License (AGPL) as a new licensing option. This comes after a year of controversy over …

Read More about Redis Goes Open Source Again — But Not Everyone’s Convinced

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