David Cao

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.

Checking Your DNS Server in Linux – A Comprehensive Guide

In the intricate world of computer networking, the Domain Name System (DNS) acts as the internet’s phonebook, translating human-readable domain names like “google.com” into machine-readable IP addresses. For Linux users, understanding how to check and verify the currently used DNS…

This New Linux Feature Opens a New Backdoor in Linux

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,…