#Ubuntu Linux

This article provides a guide for adding users to groups in Ubuntu Linux, a function that helps regulate account access to resources. It distinguishes between primary and secondary groups, with a new account automatically joining the corresponding primary group. The text also specifies how to add a user to a group, change a user's primary group, and lists all groups in Ubuntu Linux.

The article details the process to install Microsoft .NET 7 on Ubuntu Linux. Microsoft's .NET 7 has improved Linux and ARM64 support, enhances app performance, and introduces new features. While .NET 6 packages are already in Ubuntu's default repositories, .NET 7 packages will need the official Microsoft .NET repository for installation. The article provides step-by-step commands for this process.

This text explains how to install and use Nexus Repository Manager on Ubuntu Linux, a system beneficial for managing application binaries and build artifacts. The process includes instructions for installing Java OpenJDK and JRE v8, downloading and extracting the Nexus package, creating a Nexus user account, configuring the system to run Nexus, and setting up a reverse proxy server.

The article provides a detailed guide on installing and using the MEAN stack on Ubuntu Linux. The MEAN stack, comprising MongoDB, Express, Angular, and Node, offers a standardized, efficient framework for Java-based website and application development. The guide covers the installation processes of MongoDB, Node.js, and the MEAN stack itself, before highlighting how to create a Node.js web app and run it with a reverse proxy for efficiency.

The article provides detailed instructions on installing and using ModSecurity with Apache on Ubuntu Linux. ModSec, an open-source web application firewall, was initially a module on Apache but now supports multiple servers, with advanced performance on Apache. The guide covers installation, configuration, rule modification for preventive actions, and application of OWASP ModSecurity rules.

The article presents a detailed guide to installing and using the Standard Notes server, a cross-platform, open-source, and encrypted note-taking app, on Ubuntu Linux. The guide includes installing Docker, downloading and setting up Standard Notes from GitHub, generating configuration secrets, updating certain lines in server and Docker files, starting the server, and running checks. Additionally, it discusses server access options, setting up a reverse proxy for efficiency, the possibility of encrypting traffic with Let's Encrypt, and where to seek assistance.

The article provides detailed steps to install and use Apache Hadoop on Ubuntu Linux. The process involves initially installing Java OpenJDK, creating a dedicated user account for Hadoop, installing Apache Hadoop, setting up Hadoop environment variables, and configuring Apache Hadoop with a focus on folders, permissions, and system names. Finally, the Hadoop portal is accessed and initiated, confirming a successful installation.

The article provides step-by-step instructions on how to install and use SonarQube on Ubuntu Linux. SonarQube is an open-source platform that allows developers to inspect and analyze code quality and implement best security practices. The guide covers the installation of dependencies like OpenJDK and PostgreSQL, creating a SonarQube database and user, downloading and configuring SonarQube, and accessing the SonarQube portal. The author also suggests setting up a reverse proxy for optimal usage.

The article provides a comprehensive guide on how to install and use JasperReports, a Java-based, open-source reporting engine on Ubuntu Linux. It includes steps to install prerequisite software such as OpenJDK and MariaDB, the creation of a database account, and setting up a Tomcat server. Instructions are also provided to download the JasperReports files, configure them, restart services, and access the JasperReports portal. There is also a section on configuring JasperReports with a reverse proxy server.

The article provides a detailed guide on installing and using nvm (node version manager) on Ubuntu Linux. Nvm, a version manager for node.js allows developers to install, manage, and quickly switch between multiple node.js versions on the same system using command line, enhancing project-specific execution. The article also includes precise instructions on installing, updating, activating nvm, and installing or uninstalling different node.js versions.

The article provides a detailed guide on how to install and use the Gatsby.js framework on Ubuntu Linux. Gatsby.js is a fast, secure, React-based, open-source framework used for building robust apps and websites while integrating various content, APIs, and services. It also supports building headless CMS with templates for platforms like WordPress, Shopify, and Drupal. The installation process involves setting up Node.js, the Gatsby command line interface, and creating a Gatsby app.

The article explains how to connect to a hidden WiFi network using Ubuntu Linux. It emphasizes that unlike regular networks, hidden networks don't appear on the WiFi settings; thus, one must know the full SSID to connect. The steps are provided, including accessing the System Settings panel, selecting the WiFi tile, choosing 'Connect to Hidden Network', and then inputting the network details correctly.

The content provides a detailed guide on installing and using Monica Personal CRM, an open-source relationship management web application on Ubuntu Linux using Nginx support. The instructions involve the installation of Nginx, MariaDB, PHP, Node.js, Yarn, Composer, setting up a database for Monica, cloning Monica's project from GitHub, installing PHP dependencies for Monica, and configurations including Nginx server block setup and SSL security.

The post explains how to enable or disable the camera in Ubuntu Linux using the command line, due to the lack of camera controls in the Ubuntu settings app. Most Ubuntu camera drivers are UVC compliant and managed by the uvcvideo kernel driver module. Disabling the camera involves removing the driver using the 'modprobe' command and adding it to a blocklist. Re-enabling is achieved by unblocking the driver and re-adding it using the same command.

The article provides a tutorial on how to modify the power button behavior in Ubuntu Linux. By default, the power button is designed for turning on the machine and can also perform functions like shutdown, restart, or do nothing while the computer is on. The process involves accessing the System Settings panel and choosing a preferable action on the 'Power button behavior' setting which then applies to the PC's power button.