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Understanding virtualization & containers in the simplest way
- The article explains the concepts of virtualization, virtual machines (VMs), and containers in a simple way.
- It discusses the traditional method of running applications on separate physical servers and the limitations it posed.
- Virtualization allows multiple operating systems to run on a single physical machine, leading to better resource utilization and cost savings.
- Containers, unlike VMs, share the host OS, making them lightweight, fast, and resource-friendly.
- Docker is introduced as a containerization platform that simplifies the process of creating, deploying, and managing containers.
- A step-by-step mini-project is provided to run an Ubuntu container using Docker, highlighting its practical application and benefits.
- The article explains the importance of Ubuntu containers for testing software, running Linux tools, experimenting with different distributions, and learning Linux.
- It also mentions other container images available, such as Alpine Linux, Nginx, PostgreSQL, Node.js, and Python.
- Step-by-step instructions are given to download the Ubuntu container image, run the container, check the OS version, install software, exit, and restart the container.
- The article provides a comprehensive understanding of virtualization, containers, and how to work with Docker in a practical manner.
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