This article explains how to install and configure a VNC server on Ubuntu 20.04. We'll also show you how to securely connect to the VNC server through an SSH tunnel Read More

This article explains how to install and configure WireGuard on Debian 10 that will act as a VPN server Read More

This tutorial explains how to install Asterisk on Ubuntu 20.04. Asterisk is a popular open-source PBX platform Read More

This article explains how to install and configure Fail2ban on Debian 10. Fail2ban is a tool that helps protect your Linux machine from brute-force and other automated attacks Read More

This article describes how to install and configure an FTP server on Ubuntu 20.04 that you use to share files between your devices Read More

The for loop in Python iterates over the items of a sequence and repeatedly executes a block of statements Read More

This article describes how to install VMware Workstation Player on Ubuntu 20.04 Read More

This article describes how to install Wine on Ubuntu 20.04. Wine is an open-source compatibility layer that allows you to run Windows applications on Unix-like operating systems Read More

This article explains how to install the Microsoft Edge Browser web browser on Ubuntu 20.04 Read More

In this article, we'll show you how to install Python 3.9 on Debian 10 Read More

wait is a command that waits for the given jobs to complete and returns the exit status of the waited for command Read More

This article will walk you through the basics of Python tuples. Tuples are similar to lists, with the main difference being that the lists are mutable while the tuples are immutable Read More

Find and replace is a powerful feature of Vim, which allows you to make changes to your text quickly Read More

This article explains how to write text to a file in Bash, using the redirection operators and tee command Read More

read is a bash built-in command that reads a line from the standard input (or from the file descriptor) and split into words Read More

This article explains how to use the systemctl command to list Linux services and check their status Read More

Nmap is a powerful network scanning tool for security audits and penetration testing Read More

This article explains how to use the chattr command to change file attributes on Linux file systems Read More

In this article, we'll show you how to install PHP 8 on Ubuntu 20.04 and integrate it with Nginx and Apache Read More

basename is a command-line utility that strips directory and suffix from given file names Read More

In Python, we can convert integers and other data types to strings using the built-in str() function Read More

In this article we'll discuss how to install Flask on Ubuntu 20.04 inside a Python virtual environment Read More

who is a command-line utility that displays a list of currently logged in users. It can also show the current run level, time of the last system boot, and more Read More

In this article, we'll show you two ways to install Python 3.9 on Ubuntu 20.04 Read More

This article describes how to install the proprietary Nvidia drivers on Ubuntu 20.04 Read More

In Git you can undo changes using the git reset command followed by the commit identifier Read More

This article explains how to install and deploy Odoo 14 inside a Python virtual environment on CentOS 8 Read More

In this article, we'll talk about how to use the rmmod command to remove modules from the Linux Kernel Read More

WireGuard is a modern VPN technology that utilizes state-of-the-art cryptography. In this article, we'll discuss how to set up a WireGuard VPN on Ubuntu 20.04 Read More

This tutorial explains how to set up a Squid Proxy on Ubuntu 20.04 and configure Firefox and Google Chrome web browsers to use it Read More

This tutorial explains how to install and configure an FTP server on Raspberry Pi that you use to share files between your devices Read More

This article explains how to install and deploy Odoo 14 inside a Python virtual environment on Ubuntu 20.04. Odoo is a popular open-source suite of business apps that help companies to manag… Read More

To find the current working directory in Python, use os.getcwd(), and to change the current working directory, use os.chdir(path) Read More

wall is a command-line utility that displays a message on the terminals of all logged-in users. The messages can be either typed on the terminal or the contents of a file Read More

Slack is one of the most popular collaboration platform in the world that brings all your communication together. This tutorial explains how to install Slack on CentOS 8 Read More

It's been six years since Heartbleed was first discovered, and the OpenSSL vulnerability can still be found and exploited across the internet Read More

Python has a built-in function len() that returns the length of a given object Read More

FFmpeg is a free and open-source collection of tools for handling multimedia files. This article describes how to install FFmpeg on Ubuntu 20.04 Read More

A cron job is a task that is executed at specified intervals. Running cron job every 5, 10, or 15 minutes are some of the most commonly used cron schedules Read More

This article explains how to set up a static IP address on Ubuntu 20.04 desktop machines and servers Read More

This article explains how to check what version of Java is installed on your Linux system using the command line Read More

This article explains how to install and configure Fail2ban on CentOS 8. Fail2ban is an open-source tool that helps protect your Linux machine from brute-force Read More

This article describes how to install VLC media player on Ubuntu 20.04. VLC can be installed as a snap package via the Snapcraft store or as a deb package through apt Read More

This article explains how to set up automatic rebootless kernel updates using the live patching solutions from Canonical and CloudLinux Read More

This article explains two ways of installing Chromium on Ubuntu 20.04. Chromium can be installed as a snap package via the Snapcraft store or as a deb package from the Google repositories Read More

This article covers how to use the usermod command to add a user to a group, change a user shell, login name, home directory, and more Read More

This guide shows two ways of installing Atom on Ubuntu 20.04. Atom can be installed as a snap package via the Snapcraft store or as a deb package from the Atom repositories Read More

In Python, there are several different ways to reverse a list, depending on what you're trying to do Read More

This guide shows two ways of installing Slack on Ubuntu 20.04. Slack can be installed as a snap package via the Snapcraft store, or as a deb package from the Slack repositories Read More

Knowing how to add and remove users is one of the basic skills a Linux user should know. This article explains how to add and remove user accounts on Ubuntu 18.04 Read More

The HTTP status code 500 is a generic error response that is returned by the server when no other error code is appropriate. It can be caused by a number of problems that prevent the server… Read More

This article describes how to install and configure Fail2ban on Ubuntu 20.04. Fail2ban is a tool that helps protect your Linux machine from brute-force and other automated attacks by monitor… Read More

Composer is a dependency manager for PHP. This tutorial explains how to install Composer on Debian 10 systems Read More

This article shows how to install and configure Memcached on Debian 10. Memcached is a free and open-source high-performance in-memory key-value data store Read More

This article guides you through the installation of Postman on Ubuntu 20.04. Postman is available as a native app (built on Electron) for all major operating systems, including macOS, Linux… Read More

This article guides you through the installation of Apache Cassandra on Ubuntu 20.04 Read More

This article describes how to install Tor web browser on Ubuntu 20.04. Tor Browser is a customized version of Firefox that routes the web traffic through the Tor network, making it private a… Read More

This article explains how to install Sublime Text 3 on Ubuntu 20.04. Sublime Text is a popular text and source code editor for web and software development Read More

MongoDB is a free and open-source document database. In this tutorial, we will cover the process of installing and configuring the latest version of MongoDB Community Edition on Ubuntu 20.04… Read More

This article covers the steps of installing the latest version of CouchDB on Ubuntu 20.04. Apache CouchDB is a free and open-source NoSQL database developed by the Apache Software Foundation… Read More

This article shows you how to install and configure Gitea on CentOS 8. Gitea is a self-hosted open-source git server written in Go Read More

Nagios is a popular open-source monitoring system. This article explains how to install Nagios on Ubuntu 20.04 Read More

This article explains how to generate SSH keys on Ubuntu 20.04 systems. We'll also show you how to set up an SSH key-based authentication and connect to remote Linux servers without entering… Read More

This article explains how to install Apache Cassandra on CentOS 8. Apache Cassandra is a free and open-source NoSQL database with no single point of failure Read More

SFTP is a secure file protocol for transferring files between two hosts over an encrypted connection. The default SFTP port is 22 Read More

In this article, we're going to explain how to use cURL to make POST requests. The HTTP POST method is used to send data to the remote server Read More

This article describes how to create tar.gz files. By convention, the name of a tar archive compressed with gzip should end with either .tar.gz or .tgz Read More

Renaming directories is one of the most basic operations you often need to perform on a Linux system. This article explains how to rename directories using the command-line Read More

This tutorial explains how to install a free Let's Encrypt SSL certificate on Ubuntu 20.04 running Nginx as a web server. We’ll also show how to configure Nginx to use the SSL certific… Read More

Quite often, when working with text files, you'll need to delete one or more lines. This article shows how to delete lines in Vim/Vi Read More

When troubleshooting system or application slowdown or misbehavior, one of the first things to check is the system memory usage. This article explains how to check RAM usage in Linux using s… Read More

This article explains how to install Jenkins on Ubuntu 20.04. Jenkins is an open-source automation server that can be used to easily set up continuous integration and continuous delivery (CI… Read More

In this article, we will show you several different ways to find the number of files in a directory in Linux Read More

In this article, we will guide you through how to set up a DevOps pipeline in AWS Read More

This article shows how to install and configure Memcached on Ubuntu 20.04. Memcached is a free and open-source high-performance in-memory key-value data store Read More

The Python's map() function takes an iterable object, along with a function, and applies that function to each element in the iterable Read More

In this tutorial we will show you how to install Gradle on Ubuntu 20.04. We'll download the latest release of Gradle from their official website Read More

This article describes how to set up Nginx server blocks on Ubuntu 20.04. A server block is an Nginx directive that defines settings for a specific domain, allowing you to run more than one… Read More

In this tutorial, we'll provide a step by step instructions about how to secure your Apache with Let's Encrypt using the certbot tool on Ubuntu 20.04 Read More

Steam is a cross-platform entertainment platform developed by Valve Corporation for purchasing and playing video games. This article explains how to install the Steam client on Ubuntu 20.04 Read More

This article explains how to use the sysctl command to view and modify kernel parameters at runtime Read More

This article describes how to install OpenCV on Ubuntu 20.04. OpenCV is an open-source computer vision library with bindings for C++, Python, and Java Read More

This guide explains how to install Elasticsearch on Ubuntu 20.04. Elasticsearch is an open-source distributed full-text search and analytics engine Read More

KVM (Kernel-based Virtual Machine) is an open-source virtualization technology built into the Linux kernel. This guide provides instructions on how to install and configure KVM on Ubuntu 20… Read More

This article explains how to redirect the HTTP traffic to HTTPS using the .htaccess file Read More

TensorFlow is a free and open-source platform for machine learning built by Google. This tutorial explains how to install TensorFlow in a Python virtual environment on Ubuntu 20.04 Read More

This article covers the basics of writing comments in Python. A comment is a human-readable explanation or annotation that are used to explain the code Read More

This article explains how to install curl on Ubuntu 20.04. Curl is a command-line utility for transferring data from or to a remote server Read More

This article describes how to install TeamViewer on Ubuntu 20.04. TeamViewer is a cross-platform solution that is used for remote control, web conferencing, desktop sharing, and file transfe… Read More

This article explains how to open (or unzip) .gz files. Gzip is a popular compression algorithm that reduces the size of a file while keeping the original file mode, ownership, and timestamp… Read More

This article describes how to perform search operations in Vim / Vi. Vim allows you to quickly find text using the / (forward slash) and ? (question mark) commands Read More

This article describes how to set up Apache Virtual Hosts on Ubuntu 20.04. A Virtual Host is an Apache configuration directive that allows you to run more than one website on a single server… Read More

This tutorial explains how to make a Minecraft Server on Ubuntu 20.04. Minecraft is one of the most popular games of all time Read More

In this article we'll show you how to parse JSON data in Python. JSON is a human-readable text-based data format Read More

In this tutorial, we will show you two different ways to install Apache Maven on Ubuntu 20.04. Apache Maven is an open-source project management and comprehension tool used primarily for Jav… Read More

This guide explains how to set or change the hostname on Ubuntu 20.04 without needing to restart the system Read More

This tutorial will walk you through the installation of Anaconda Python Distribution on Ubuntu 20.04. Anaconda is a popular Python/R data science and machine learning platform Read More

This tutorial explains how to install and use Composer on Ubuntu 20.04. Composer is a dependency manager for PHP Read More

The modulo operation is an arithmetic operation that finds the remainder of the division of one number by another. In Python, the modulo operator is represented by the percent sign Read More

modprobe is a command-line utility that allows you to add and remove modules from the Linux kernel Read More