https://www.anhdh.net/en/blog Backend & Cloud engineering notes — deep dives into distributed systems, databases, caching, and the infrastructure that keeps software running at scale. Practical, no-fluff writing for engineers who care about how things actually work. en-US anhdh.cv@gmail.com (Do Hung Anh) anhdh.cv@gmail.com (Do Hung Anh) Sun, 16 Aug 2026 00:00:00 GMT https://www.anhdh.net/en/blog/container https://www.anhdh.net/en/blog/container Let's see how the container solves the Virtual Machine's weight and boot-time problem by dropping the one thing a VM never gives up: its own private kernel. Sun, 16 Aug 2026 00:00:00 GMT anhdh.cv@gmail.com (Do Hung Anh) beginnerlinuxkubernetescloud https://www.anhdh.net/en/blog/k8s-architecture-and-components https://www.anhdh.net/en/blog/k8s-architecture-and-components With containers now scattered across dozens or hundreds of machines, who decides which one runs where, restarts it when it dies, or scales it up under load? That's the exact job Kubernetes was built for — let's map out what's actually inside a cluster. Sun, 16 Aug 2026 00:00:00 GMT anhdh.cv@gmail.com (Do Hung Anh) beginnerlinuxkubernetescloud https://www.anhdh.net/en/blog/linux-fundamentals-before-kubernetes https://www.anhdh.net/en/blog/linux-fundamentals-before-kubernetes Before getting anywhere near Kubernetes itself, the story has to start with the one piece of software everything else in this series is built on top of: the Linux kernel. If you've never really sat down and thought about what a kernel does, what a driver is, or what "sandbox" actually means in Linux, this article is for you. Sun, 16 Aug 2026 00:00:00 GMT anhdh.cv@gmail.com (Do Hung Anh) beginnerlinuxkubernetescloud https://www.anhdh.net/en/blog/physical-server-limitations https://www.anhdh.net/en/blog/physical-server-limitations What does a physical server actually look like, and why can't we just keep deploying more onto the same one? Sun, 16 Aug 2026 00:00:00 GMT anhdh.cv@gmail.com (Do Hung Anh) beginnerlinuxkubernetescloud https://www.anhdh.net/en/blog/virtual-machine https://www.anhdh.net/en/blog/virtual-machine Let's see how the Virtual Machine solves the physical server's "one machine, one environment" problem, and the downsides of this approach. Sun, 16 Aug 2026 00:00:00 GMT anhdh.cv@gmail.com (Do Hung Anh) beginnerlinuxkubernetescloud