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Introduction Setting up a server is an essential step in creating a reliable and secure environment for hosting websites, applications, or managing data. In this article, we will explore the process of setting up an Ubuntu server, specifically versions 20.04, 18.04, and 16.04. We will cover the necessary steps, along with practical examples and their corresponding outputs, to help you navigate through the initial server setup process seamlessly. Prerequisites Before diving into the server setup, ensure that you have the following prerequisites in place − An Ubuntu 20.04, 18.04, or 16.04 server instance. A user account with administrative privileges (or ... Read More
Red Hat Enterprise Linux (RHEL) is a Linux-based operating system from Red Hat designed for businesses. This article is a practical guide on how to carry out the initial server setup and configurations on RHEL 7. In this tutorial, we will walk you through the essential first steps to prepare a RHEL 7 server for use. Section 1: Logging in as Root After your server boots, you will be able to log in as the root user. The root user is the administrative user in a Linux environment with very broad privileges. Example − ssh root@your_server_ip Section 2: Creating ... Read More
Introduction The burgeoning field of technology constantly introduces innovations designed to boost efficiency, speed, and productivity in diverse arenas, among which data management holds paramount importance. The traditional disc-based databases have played a significant role in data management for years. However, with data volumes escalating exponentially, businesses worldwide are looking for ways to expedite data processing. In this scenario, in-memory databases (IMDBs) stand as a revolutionary alternative. Understanding In-Memory Databases An in-memory database (IMDB) is a database management system that primarily relies on main memory (RAM) for data storage rather than traditional disk storage. This storage scheme empowers IMDBs to ... Read More
An add-on called Python Mode for Processing makes it possible to use Python in the development environment and programming language for visual arts and design known as Processing. In simple terms, add-on means a software program or script that is added to a program that provides a special feature. The processing mode is defined by selecting a programming language that is used to write code. This processing supports both visual and simple programs. For example- Many researchers use Python Processing to run their code because it gives them a special processing model as compared to other interpreters. System Requirement for ... Read More
Linux has built-in support for two types of Mandatory Access Control (MAC) systems: SELinux and AppArmor. Both systems add an additional layer of access control to the default Discretionary Access Control (DAC) that comes with Linux. In this article, we delve into the implementation of both systems, offering practical examples and their respective outputs. Understanding SELinux and AppArmor SELinux, short for Security-Enhanced Linux, is a Linux kernel security module that provides a mechanism for supporting access control security policies. It is a highly flexible MAC system that assigns labels to every object in the system (files, directories, ports, etc.) and ... Read More
In the era of digital transformation, cloud computing has become the bedrock of modern infrastructure. This paradigm shift has brought forth three cloud service models: Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS). This article focuses on Infrastructure as a Service (IaaS) and, more specifically, its Application Programming Interface (API). Understanding IaaS and IaaS API Before diving into IaaS APIs, let's understand what IaaS is. IaaS is a cloud computing model that provides virtualized computing resources over the internet. It provides users with raw compute, storage, and network resources that they can ... Read More
An anaconda is an open-source free path that allows users to write programming in Python language. The anaconda is termed by navigator as it includes various applications of Python such as Spyder, Datalore, JupyterLab, orange, etc. This environment helps us to set the different versions and packages of Python. The Anaconda distribution of Python includes more than 350 libraries for data science. The anaconda is also known as one of all management tools. System Requirement to Install Anaconda Navigator Requirement Details RAM 8GB is good CPU 2 x 64-bit Disk Space Minimum ... Read More
In the realm of Python programming, a filesystem node holds significant prominence as it encompasses the essence of file and directory representation within the intricate file system. This construct acts as a means to interact with files and directories programmatically. Each node bears multiple attributes like names, sizes, permissions, and timestamps. The widely used Python modules, such as "os" and "pathlib, " serve as the conduits through which one may interact with these entities, the filestystem nodes and even modify them when required. Filesystem nodes can be created, renamed, deleted, and navigated to access their contents. These nodes make ... Read More
Consider a pipeline that allows for seamless data flow and communication between various components of a complex system. Named pipes are similar conduits in Python programming, making it easier for programs to communicate with each other and other processes. Named pipes, which are also referred to as FIFOs (First-In, First-Out), are a powerful way to exchange data between processes on the same system or even between systems. In this article, we will take a journey into Python to learn how to create and use named pipes. We'll unwind the step by step process of making a named pipe, writing and ... Read More
Introduction Linux, the popular open-source operating system, comes with a set of useful tools and commands that you can leverage for everyday tasks. One such task is file compression, and Linux provides various methods to zip or compress files and directories. This guide will walk you through how to zip a file in Linux using commands like 'gzip', 'zip', and 'tar'. Using the 'gzip' Command 'gzip' (GNU zip) is a widely-used command for file compression in Linux. Here is an example of how to use it − gzip filename.txt This command will compress the file 'filename.txt' and rename it ... Read More