#Ubuntu Linux

This article provides detailed steps for listing all installed packages on Ubuntu Linux using the apt and dpkg-query package management tools. It highlights the importance of knowing installed packages when diagnosing vulnerabilities or replicating installations. Additionally, it discusses how to use filters for a more readable output, or count the total number of installed packages.

This piece provides a detailed guide on installing Google Chrome on Ubuntu Linux, a beginner-friendly, open-source operating system. Installation can be done either via Chrome's download page or through the command line console. Google Chrome is not included in Ubuntu's default repositories so it must be manually downloaded and installed.

This post educates students and new Ubuntu Linux users on how to establish a CUPS print server. CUPS lets a computer operate as a print server, facilitating printing and print services on Unix-like operating systems. It manages printing tasks in multiple-printer environments and offers several benefits like printing, queueing, and network printing. This tutorial covers the process of installing and configuring CUPS on Ubuntu, verifying its installation, and installing printer drivers.

This content provides a detailed guideline on the installation and use of Memcached on Ubuntu Linux for students and new users. Memcached, a lightweight, open-source, in-memory key-value data store functions to significantly enhance the speed of dynamic web applications by caching repeated PHP object or database calls. Instructions for installing, configuring and blocking remote access to Memcached are outlined, alongside necessary precautions to prevent potential misuse.

The post provides detailed instructions on how to add or remove users on Ubuntu Linux, whether for system administrators or home users. It outlines two command-line tools namely "useradd" and "adduser", with elimination processes via "userdel" and "deluser" commands. The guide also presents steps for command line user addition and GUI-based application instructions for Ubuntu desktop user management. It further elucidates how to upgrade a user to administrator.

The content provides a detailed walkthrough for mounting Windows shares on Ubuntu Linux, using Windows 11 and Ubuntu as examples. Steps include enabling Network Discovery and Public Folder Sharing in Windows 11, setting up file sharing, and installing the required CIFS utility package on Ubuntu. A user can then mount the Windows share using the mount command with the cifs file system. There are also instructions for setting up auto-mount whenever Ubuntu starts up.

This post provides a guide for setting up the Apache HTTP server as a reverse proxy. Apache, typically a web server, can function as a reverse proxy for applications/devices lacking web server features. Using Apache reduces backend server load via SSL encryption, caching, etc. Steps include enabling necessary modules and setting configurations. This is particularly helpful for students or new users of Ubuntu Linux, a popular operating system for desktops and servers.

This guide demonstrates setting up a reverse proxy on the Nginx HTTP server, often used as a reverse proxy for HTTP and non-HTTP servers. A reverse proxy directs client requests to appropriate backend servers and can perform tasks such as SSL encryption, caching, load balancing, and compression. The guide offers instructions and configurations for using Nginx as a reverse proxy for various applications and backend servers, focusing on ease of understanding for students and beginners.

This article provides instructions on changing the hostname in Ubuntu 24.04. It emphasizes the importance of unique hostnames for device identification on a network. Users can change the hostname using the `hostnamectl` command and must also update the "/etc/hosts" file. A system reboot is required for changes to take effect.

The post provides a comprehensive guide on installing PostgreSQL and the pgAdmin4 tool on Ubuntu Linux, ideal for students and new users. PostgreSQL, an open-source database, supports C/C++, Java, among other languages. The post details how to add the PostgreSQL repository, install the database, validate its status, and change administrator passwords. It also covers how to install the pgAdmin4 web portal for easy management using a web browser.

The post guides beginners, particularly students, on downloading and installing Ubuntu Linux, an open-source operating system that is suitable for desktops, laptops, and servers. It details how to download the Ubuntu ISO image, burn it onto physical media, boot from the media in a new computer, and continue with the installation process. The post also emphasizes updating Ubuntu after installation. Ubuntu offers Long Term Support for five years and Short Term Support for about nine months.

The article guides through the process of installing Ghost CMS on Ubuntu Linux, using Nginx for support. Ghost, a Node.js-based open-source publishing platform, offers a simple, lightweight solution for bloggers. The steps detailed include Nginx installation, MariaDB installation and security setup, Node.js setup, and Ghost installation with its CLI utility. The blog ends with important security steps and the initial configuration of Ghost.

The post outlines the procedure to upgrade Ubuntu Desktop or Server from a previous version, indicating that Ubuntu LTS versions are supported for five years and STS versions are supported for about 9 months. To begin, you must first update all installed packages to their latest versions, then remove any dependencies no longer needed. Then, use the 'do-release-upgrade' command to start the upgrade process, following on-screen instructions and restarting your computer when finished. The content assured that the steps are relatively painless and straightforward.

This article instructs on how to install Node.js and npm on Ubuntu Linux, two important packages for running Node.js-based applications. It provides three installation methods: through Ubuntu repositories, the Snap package management system, and NodeSource repository. Steps to install Node.js and npm versions of your preference, as well as creating and deploying a test server using Node.js, are also mentioned.

The post provides a step-by-step demonstration on installing Python, a versatile programming language, on Ubuntu Linux. Two methods of installation are given: installing from Ubuntu repositories, which may not have the latest Python version, or manually building from the source code, which gives control over the Python version to install. Various features of the current Python versions are also highlighted, including assignment expression, position-only parameters, and f-strings support.