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CentOS

CentOS (short for Community ENTerprise Operating System) was a popular open-source Linux distribution that was known for its stability and long-term support. It was based on the source code of Red Hat Enterprise Linux (RHEL) and provided a free alternative to RHEL for users who didn't require official Red Hat support or licensing.

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Docker

Docker is a popular platform for developing, shipping, and running applications in containers. Containers are lightweight and portable environments that encapsulate all the necessary components and dependencies required to run an application, including the code, runtime, system tools, libraries, and settings. Docker provides a standardized way to package and distribute applications, making it easier to deploy and manage software across different environments.

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Linux

Linux is an open-source and Unix-like operating system kernel that serves as the core component of many different Linux distributions, commonly referred to as Linux operating systems. It was created by Linus Torvalds in 1991 and has since become one of the most popular and widely used operating systems in the world.

Here are some key characteristics and aspects of Linux:

1. Open Source: Linux is released under an open-source license, which means that its source code is freely available for anyone to view, modify, and distribute. This open nature has contributed to a large and active community of developers and users who collaborate to improve and expand the Linux ecosystem.
2. Unix-Like: Linux follows the design principles and concepts of the Unix operating system, which includes features like multitasking, multi-user support, and a hierarchical file system.
3. Kernel: Linux is often referred to as the Linux kernel, which is the core part of the operating system responsible for managing hardware resources, memory, and providing essential services to other software components.
4. Distributions (Distros): While Linux is the kernel, actual Linux-based operating systems are typically distributed as complete packages called "Linux distributions" or "distros." These distros combine the Linux kernel with various software components, including libraries, utilities, desktop environments, and package managers. Some popular Linux distributions include Ubuntu, Fedora, CentOS, Debian, and Linux Mint.
5. Wide Range of Uses: Linux is versatile and can be used in various contexts, from desktop computers and laptops to servers, embedded systems, supercomputers, and mobile devices (e.g., Android is built on a Linux kernel). It's also commonly used in web hosting, cloud computing, and networking infrastructure.
6. Security and Stability: Linux is known for its stability and security features. Due to its open-source nature, security vulnerabilities can be identified and patched quickly, making it a preferred choice for many server administrators.
7. Command-Line Interface (CLI): Linux offers a powerful command-line interface, which allows users to perform various tasks and system management operations through text-based commands. However, many Linux distributions also provide graphical user interfaces (GUIs) for those who prefer a more user-friendly experience.

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Prometheus

Prometheus is an open-source monitoring and alerting toolkit designed for reliability and scalability in monitoring complex, dynamic, and containerized environments. It was originally developed at SoundCloud and later open-sourced as a project under the Cloud Native Computing Foundation (CNCF).

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AWS Cloud

Amazon Web Services (AWS) is a comprehensive and widely-used cloud computing platform provided by Amazon.com. AWS offers a broad set of cloud services that allow individuals, businesses, and organizations to build and deploy various types of applications and services in a highly scalable, flexible, and cost-effective manner. AWS cloud services are hosted in data centers located around the world, providing global accessibility and redundancy.

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Kubernetes

Kubernetes, often abbreviated as K8s (with "8" representing the number of letters between "K" and "s" in "Kubernetes"), is an open-source container orchestration platform for automating the deployment, scaling, and management of containerized applications. Developed by Google and later donated to the Cloud Native Computing Foundation (CNCF), Kubernetes has become the de facto standard for container orchestration in modern cloud-native application development.

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