#Ubuntu Linux

This tutorial guides students and new users in setting up two-factor authentication for SSH on Ubuntu 20.04 | 18.04 using Google Authenticator. The process involves installing Google Authenticator, adjusting the SSH Server's default configuration file, and updating the PAM SSH configuration file. Once setup, the user will be prompted for a randomly generated OTP each time they try to log in, supplying an extra layer of security.

The tutorial guides new users on how to improve Ubuntu security with Google's multi-factor authentication. It involves installing the Google PAM package and the Google Authenticator app on the mobile device. After installing, Ubuntu's configuration file is opened and updated. The setup prompts a series of questions to customize the security, such as time-based tokens and rate-limiting. This additional layer of security requires a third one-time code for logging in.

This tutorial guides students and new users on installing Apache Spark on Ubuntu 20.04 or 18.04. Apache Spark, an open-source framework, supports SQL queries, data streaming, machine learning, and graph processing. Installation involves setting up the Java JDK, Scala, and then Apache Spark. Verification steps ensure proper installation of each component.

The tutorial guides on how to install the UVdesk helpdesk system on Ubuntu 20.04 and 18.04. The installation includes setting up Apache, MariaDB, and PHP modules, creating a UVdesk database, and configuring Apache2. Parts of the process involve downloading UVdesk packages from GitHub and enabling appropriate permissions. The process concludes by setting up the UVdesk site via a web browser.

This tutorial guides users through the process of backing up and restoring MariaDB databases and data files on Ubuntu using Mariabackup. Mariabackup, an open-source tool introduced in MariaDB 10.1, does "hot online" backups of InnoDB tables and other files. The tutorial includes step-by-step instructions on installing Mariabackup, creating backups, and restoring data from these backups.

This tutorial guides students and new users on how to list or show all services running or stopped on Ubuntu 20.04 | 18.04 LTS. The guide explains the use of the systemctl command-line utility, which manages systemd services on Linux systems. The tutorial also includes instruction for starting, stopping, enabling, disabling, and checking service status, as well as listing all services. It concludes with how to manage services on previous Ubuntu versions using the service command.

This is a detailed guide on installing and configuring WildFly, a lightweight Java-based application runtime, on Ubuntu 20.04/18.04. The guide includes installing Java and OpenJDK, creating a service account for WildFly, downloading and configuring WildFly packages, making Wild automatically at boot time, and setting up a user account to manage the app server web console. It concludes by allowing remote access to the admin console.

The tutorial guides on installing PHP Composer on Ubuntu 20.04/18.04. PHP Composer is a tool for managing package dependencies for PHP-based projects. It helps in installing and managing PHP applications. Prior requirement for installation is having PHP installed. Post-installation, commands can be run to test whether composer is successfully installed.

This tutorial provides a step-by-step guide on how to install Apache Ant, a Java library and tool that automates the process for compiling, testing, and running Java applications, on Ubuntu 20.04 | 18.04. Ways to install include via Apt, SDKMAN, or manual download; associated steps each method entails, such as installing Java through OpenJDK, creating symbolic links, or activating environment variables, are also described.

This tutorial instructs users on installing Apache Groovy on Ubuntu 20.04 or 18.04. Apache Groovy is a dynamic language for the Java platform that aids developers in building programs with simple syntax. The guide details the process of updating the server, installing OpenJDK 8, downloading and installing Groovy through an install script, and enabling the Groovy environment.

This tutorial guides on how to install Apache Cassandra, a free, open-source, scalable NoSQL database system, on Ubuntu 20.04 | 18.04. The process involves installing JAVA (specifically OpenJDK 8), adding the Apache Cassandra repository and key, and installing Cassandra. After the installation, the user can interact with Cassandra through the Cassandra Query Language (CQL).

This tutorial provides steps for installing Apache ActiveMQ, a free, Java-based, multi-protocol message broker software, on Ubuntu 20.04/18.04 server. The steps involve: installing Java; downloading ActiveMQ from the Apache Office package repository; creating a dedicated user and group for ActiveMQ; changing folder ownership; creating an ActiveMQ service; and modifying the default configuration file as per the environment.

The article provides methods for installing Ruby on Ubuntu Linux, a high-level programming language used in the Ruby on Rails Framework. The simplest way is via Ubuntu's built-in apt package manager, which usually offers the latest stable version. If you need a different version of Ruby, the article also offers guides on installation via Rbenv and RVM tools. Instructions for verifying the installation are included.

The post provides a detailed tutorial on how to install Docker and Docker Compose on Ubuntu Linux. Docker, a software platform developed by Docker Inc., allows system-level virtualization and runs applications as containers. Docker Compose is a tool used for defining and running multi-container Docker applications. Instructions are given for adding Docker's official GPG key and repository to Ubuntu, removing older versions, installing specific or latest versions of Docker, and finally installing Docker Compose.

The post illustrates how to install Microsoft Teams on Ubuntu Linux. The official Teams app is available to Linux users, marking the introduction of the first Microsoft 365 app on Linux. Users' can either download Teams'.DEB installer files for Debian and Ubuntu-based distributions, or install Teams quickly via the command terminal console.