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Redis is an open-source in-memory data structure store. It can be used as a database, cache and message broker and supports various data structures such as Strings, Hashes, Lists, Sets etc.

This tutorial describes how to install and configure Redis on an Ubuntu 18.04 server.

Gradle is a general-purpose build tool used primarily for Java projects. It combines the best features of Ant and Maven. Unlike its predecessors which use XML for scripting, Gradle uses Groovy, a dynamic, object-oriented programming language for the Java platform to define the project and build scripts.

Google Chrome is the most widely used web browser in the world. It is fast, easy to use and secure browser built for the modern web.

VirtualBox is an open source cross-platform virtualization software which allows you to run multiple guest operating systems (virtual machines) simultaneously.

Yarn is a JavaScript package manager compatible with npm. It was created to solve a set of problems with the npm such as speeding up the packages installation process by parallelizing operations and reducing errors related to network connectivity.

The grep command which stands for “global regular expression print” is one of the most powerful and commonly used commands in Linux. Grep searches one or more input files for lines that match a given pattern and writes each matching line to standard output. If no files are specified, grep reads from the standard input which is usually the output of another command.

In this tutorial we will describe how to generate SSH keys on Debian 9 systems. We will also show you how to setup a SSH key-based authentication and connect to your remote Linux servers without entering a password.

Django is a free and open source high-level Python web framework designed to help developers build secure, scalable and maintainable web applications.

This tutorial will guide you through the process of obtaining a free Let’s Encrypt using the certbot tool on Debian 9. We’ll also show how to configure Apache to use the new SSL certificate and enable HTTP/2.

UFW (Uncomplicated Firewall) is a user-friendly front-end for managing iptables firewall rules and its main goal is to make managing iptables easier or as the name says uncomplicated. In this tutorial we will show you how to setup a firewall with UFW on Debian 9.

This guide serves as a “cheat sheet” to help Docker users keep their system organized and to free disk space by removing unused Docker containers, images, volumes, and networks.

Composer is a dependency manager for PHP (similar to npm for Node.js or pip for Python). Composer will pull in all the required PHP packages your project depends on and manage them for you.

In this tutorial we’ll be installing vsftpd. It is a stable, secure and fast FTP server. We will also show you how configure vsftpd to restrict users to their home directory and encrypt the entire transmission with SSL/TLS. Although this tutorial is written for Ubuntu 18.04 the same instructions apply for Ubuntu 16.04 and any Debian based distribution, including Debian, Linux Mint and Elementary OS.

Whether you want to access the Internet safely and securely while connected on an untrusty public Wi-Fi network, bypass Geo-restricted content or allow your coworkers to connect securely to your company network when working remotely, using a VPN is the best solution. VPN allows you to connect to remote VPN servers, making your connection encrypted and secure and surf the web anonymously by keeping your traffic data private. This tutorial will walk you through the process of setting up your own VPN server by installing and configuring OpenVPN.

Docker Compose is a tool that allows you to define and run multi-container Docker applications.

With Compose, you define the application’s services, networks and volumes in a single YAML file, then spin your application with a single command.

VMware Workstation Player is a mature and stable virtualization solution that allows you to run multiple, isolated operating systems on a single machine.

With VMware Workstation Player you can create and run your own virtual machines and evaluate software distributed as a virtual appliance from many software vendors available from VMware’s Solution Exchange.

The cat command is one of the most widely used command in Linux. The name of the cat command comes from its functionality to concatenate files. It can read and concatenate files, writing their contents to the standard output. If no file is specified or if the input file name is specified as a single hyphen (-) it reads from the standard input.

This tutorial covers the steps required for installing and configuring Odoo 12 for production using Git source and Python virtual environment on an Ubuntu 18.04 system.

Jenkins is an open source automation server that offers an easy way to set up a continuous integration and continuous delivery (CI/CD) pipeline.

This tutorial will show you how to disable the FirewallD service and install iptables