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OpnSense is an open-source, easy-to-use firewall platform that provides robust network security solutions. It is based on FreeBSD and offers a user-friendly web interface for configuring and managing firewall. This article will guide you through process of installing and configuring a basic OpnSense firewall. Step 1: Download OpnSense ISO The first step in installing OpnSense is to download ISO image from official website. latest stable release can be found on OpnSense downloads page. You will need to select appropriate image for your hardware architecture (e.g., AMD64, ARM, etc.). Step 2: Create a Bootable USB Drive Once you have downloaded ISO ... Read More
Apache Tomcat is a popular open-source web server and servlet container that is widely used to deploy Java-based web applications. In this article, we will show you how to install and configure Apache Tomcat 9 on CentOS 8/7. Step 1: Install Java The first step to installing Apache Tomcat is to install Java. Tomcat requires a Java Development Kit (JDK) version 8 or later to be installed. You can check installed Java version on your system by running following command − java -version If Java is not installed on your system, you can install it by running following command ... Read More
Apache Hadoop is an open-source framework that allows for distributed processing of large data sets. It can be installed and configured on a single node, which can be useful for development and testing purposes. In this article, we will discuss how to install and configure Apache Hadoop on a single node running CentOS 8. Step 1: Install Java Apache Hadoop requires Java to be installed on system. To install Java, run following command − sudo dnf install java-11-openjdk-devel Step 2: Install Apache Hadoop Apache Hadoop can be downloaded from official Apache website. latest stable version at time of writing ... Read More
Ansible is a popular open-source automation tool that allows system administrators to automate repetitive tasks and manage multiple servers simultaneously. It is widely used for configuration management, application deployment, and task automation. While Ansible is primarily designed for Linux and Unix-based systems, it can also be installed on Windows. In this article, we will guide you through process of installing and configuring Ansible on Windows. Requirements Before we begin, make sure your Windows machine meets following requirements − A Windows operating system (Windows 7, Windows 8, Windows 10, or Windows Server 2012 or later) A minimum of 4GB RAM ... Read More
Ansible is an open-source automation tool that is used to automate software provisioning, configuration management, and application deployment. It uses a simple syntax called YAML to describe tasks in a playbook. Ansible can be used to manage a large number of servers and can be run from a central location. In this article, we will discuss how to install and configure Ansible on Ubuntu 20.04. Step 1: Update System Packages Before installing Ansible, it is always a good practice to update system packages to latest version. Open your terminal and execute following commands − sudo apt update sudo apt upgrade ... Read More
NFS or Network File System is a widely used protocol that allows remote clients to access shared files over a network. Installing and configuring an NFS server on Ubuntu 18.04 is a straightforward process, but it requires some basic knowledge of Ubuntu commands and file systems. In this article, we will walk you through steps to install and configure an NFS server on Ubuntu 18.04. Step 1: Update System Before installing any software, it's always a good practice to update system. To do this, open terminal and run following command − sudo apt update && sudo apt upgrade This ... Read More
Ansible is an open-source automation tool that enables system administrators to automate IT tasks such as application deployment, configuration management, and infrastructure orchestration. Ansible uses a declarative language to describe system configurations and runs tasks in parallel on multiple machines at same time. One of key components of an Ansible deployment is control node, which manages deployment process. In this article, we'll guide you through process of installing and configuring an Ansible control node on a Linux machine. Prerequisites Before we begin, you will need following − A machine running a Linux distribution (such as Ubuntu, CentOS, or Debian) with ... Read More
Anaconda is an open-source distribution of Python and R programming languages used for data science, machine learning, and artificial intelligence projects. It comes with various pre-installed libraries and packages that are useful for scientific computing, data analysis, and data visualization. In this article, we will walk through steps to install Anaconda on Ubuntu 18.04 and 20.04. Prerequisites Before installing Anaconda on Ubuntu 18.04 or 20.04, you should have access to a terminal window or command-line interface with superuser privileges. Step 1: Download Anaconda The first step is to download Anaconda installation file from official Anaconda website. To download Anaconda, open ... Read More
Introduction Open Reading Frames (ORFs) are a fundamental concept in molecular biology, and they play a crucial role in understanding the structure and function of genes. ORFs are sequences of DNA that are transcribed into RNA and translated into proteins. They are characterized by a start codon (usually AUG) and a stop codon (UAA, UAG, or UGA) that mark the beginning and end of the coding region. ORFs are typically identified by computer programs that analyze the genome sequence and predict the locations of coding regions. These programs use a variety of algorithms to identify potential ORFs, such as ... Read More
Anaconda is a widely used distribution of Python and R programming languages. It provides a comprehensive set of tools for data science, machine learning, and scientific computing. Installing Anaconda on CentOS 8 is a straightforward process that can be accomplished in a few simple steps. In this article, we will guide you through process of installing Anaconda on CentOS 8. Step 1: Download Anaconda Installation Script The first step is to download Anaconda installation script from official Anaconda website. To do this, open a web browser and navigate to https://www.anaconda.com/products/distribution. Click on "Download" button under Anaconda distribution for Linux. After ... Read More