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Apache Hadoop is a popular big data framework that allows organizations to store, process, and analyze vast amounts of data. architecture of Hadoop is designed to handle large amounts of data by using distributed storage and processing. In this article, we will explain architecture of Apache Hadoop and its various components with diagrams. Introduction to Apache Hadoop Apache Hadoop is an open-source software framework used for storing and processing large amounts of data in a distributed environment. It was created by Doug Cutting and Mike Cafarella in 2006 and is currently maintained by Apache Software Foundation. Hadoop is widely used ... Read More
If you have ever tried to access a website, but received a "403 Forbidden" error message, you know how frustrating it can be. This error message means that you are not allowed to access requested resource. In this article, we will explain what Apache 403 Forbidden errors are, what causes them, and how to fix them. What is an Apache 403 Forbidden Error? An Apache 403 Forbidden error occurs when server receives a request for a resource, but server refuses to fulfill request. This error message is usually displayed in web browser and indicates that user is not authorized to ... Read More
Ansible is an automation tool that helps in configuring and managing servers, networking devices, and other infrastructure. It simplifies process of automation by providing a high-level language to describe infrastructure as code. In this article, we will discuss how to check if a file exists using Ansible. Why Check if a File Exists in Ansible? Checking if a file exists is an important task when automating infrastructure. It allows you to determine whether or not a file is present on a system, which can be useful when creating idempotent tasks. Idempotence means that a task can be run multiple times ... Read More
If you are a system administrator or a DevOps engineer, you know how important automation is in your daily operations. One of most popular tools for automation is Ansible, a configuration management tool that simplifies management of servers, network devices, and other IT infrastructure. In this article, we will dive into Ansible playbooks, a powerful feature of Ansible that allows you to automate complex tasks and configurations. What is an Ansible Playbook? An Ansible playbook is a YAML file that describes a set of tasks to be executed on one or more hosts. Playbooks are heart of Ansible automation, providing ... Read More
Ansible is an open-source IT automation tool used for configuration management, application deployment, and task automation. It allows system administrators to manage a large number of servers with ease. Ansible Playbook is a powerful feature of Ansible that allows users to automate tasks and manage configurations. When creating a Playbook, it's important to test and validate it before executing it on production systems. Ansible offers a Dry Run feature to run a playbook in check mode, which enables users to simulate execution of playbook without making any actual changes. This article will explain what a Dry Run is and how ... Read More
Android Studio is an Integrated Development Environment (IDE) developed by Google for building applications for all Android devices. It is a powerful tool that provides a comprehensive environment for creating and testing Android apps, with features such as code highlighting, debugging, and testing. In this article, we will explore various features of Android Studio that make it an indispensable tool for building Android apps. We will also discuss how Android Studio can be used to create apps for different Android devices, such as smartphones, tablets, wearables, and even TV. Getting Started with Android Studio Before we dive into features of ... Read More
If you're looking to set up an FTP server that allows anonymous logins, you've come to right place. In this article, we'll guide you through entire process of setting up an FTP server to allow anonymous logins, from installing necessary software to configuring your server to accept anonymous connections. We'll also provide you with examples to make process as simple as possible. So let's get started. Understanding FTP and Anonymous Logins FTP, or File Transfer Protocol, is a popular protocol used to transfer files between computers over a network. It's commonly used to upload files to a website or to ... Read More
Primer CSS is a CSS framework collectively developed by various GitHub contributors. One of its components is typography which enables the developers to style the written content of the website. By applying these utility classes to the HTML elements, we can easily customize the visual appearance of our application. Here, in this article, we will discuss about the type scale utilities offered by Primer CSS and how to use them in our webpage. What are Type Scale Utilities? Type scale utilities are collection of properties which help in creating proper typography throughout your website. It consists of series of pre-defined ... Read More
When designing a webpage or document, it's important to ensure that elements are visually balanced and positioned correctly. One common task in web development is to center an element within its container. While it may seem like a simple task, there are multiple ways to achieve this using CSS. In this article, we will explore four different methods for centering elements using CSS. We'll cover techniques using text-align, margin, Flexbox, and CSS Grid, and discuss the pros and cons of each method. Whether you're new to web development or looking to improve your skills, mastering these techniques will help you ... Read More
Typography is used in web design to engage people, convey a message, and make a visual effect. Compared to print typography, digital typography allows web designers more fluidity and versatility. It's a crucial element in user interface design. It aids in building a strong visual hierarchy, establishing the website's general tone, and striking a solid aesthetic balance. In addition to improving readability and accessibility, typography should be utilized to enlighten people. In this article, we will discuss about how to create an effect in which the bottom half of the text will be hidden and it will appear when the ... Read More