Fausto Ivan Zamora Arias

Windows Server vs RedHat for Modern Hosting Windows Server (including 2025) is traditionally strong for legacy, .NET Framework , Active Directory , and Hyper-V virtualization. Hyper-V is a hypervisor — meaning it is designed to run full Virtual Machines . Each VM boots its own full OS. This is great for old workloads or isolating entire OS instances, but it is heavy for modern microservices. RedHat Enterprise Linux ( RHEL ) and its family (CentOS, Rocky, AlmaLinux) were designed much closer to the container ecosystem . Linux was the birthplace of Docker , containers , and Kubernetes . The kernel features containers depend on (cgroups, namespaces) were invented in Linux. That is why RedHat integrates better with container runtimes (containerd, CRI-O) and Kubernetes cluster nodes. So if someone asks “which is better for containers? Windows or RedHat?” — the modern industry answer is: RedHat or any Linux distro is the natural native home of containers . The Scenario: I want...

Design of an Internet Banking System with AWS by Fausto Iván Zamora Arias In today’s digital era, online banking systems have become essential for delivering secure, efficient, and user-friendly financial services. This article presents a comprehensive design for a modern Internet Banking System, leveraging proven cloud technologies and architectural best practices. By breaking down the system through multiple levels of abstraction—from high-level context and container diagrams to detailed internal components—you’ll discover how each part interacts to provide seamless authentication, robust transaction handling, multi-channel notifications, and reliable data auditing. Whether you’re a developer, architect, or simply interested in fintech, this overview offers valuable insights into building scalable and secure banking solutions. Level 1: Context Diagram The system interacts with 7 main actors: Bank Client: End user who accesses services thro...