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Tech talk
In this session, you will learn the basics of containers and Kubernetes. Step by step, we will go through the entire process of packaging a Node.js application into a Docker container image and then deploying it on Ku...
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By
Kamal Nasser
Tech Talks
Kubernetes
Node.js
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Tutorial
In this guide, we will be setting up a simple Python application using the Flask microframework on Ubuntu 18.04. The bulk of this article will be about how to set up the uWSGI application server to launch the applicat...
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By
Justin Ellingwood, Kathleen Juell
Python
Python Frameworks
Nginx
Ubuntu
Ubuntu 18.04
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Tutorial
Postfix is a popular open-source Mail Transfer Agent (MTA) that can be used to route and deliver email on a Linux system. It is estimated that around 25% of public mail servers on the internet run Postfix. In this gu...
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By
Mark Drake, Hanif Jetha
Ubuntu 20.04
Ubuntu
Email
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Tutorial
In general, Docker containers are ephemeral, running just as long as it takes for the command issued in the container to complete. Sometimes, however, applications need to share access to data or persist data after a ...
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By
Melissa Anderson
Docker
Ubuntu
Ubuntu 18.04
Ubuntu 20.04
Container
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Tutorial
In this guide, you will build a Python application using the Flask microframework on Ubuntu 20.04. The majority of this tutorial is about how to set up the Gunicorn application server to run the application and how t...
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By
Kathleen Juell, Jamon Camisso
Ubuntu
Ubuntu 20.04
Python
Python Frameworks
Nginx
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Tutorial
Let's Encrypt is a Certificate Authority (CA) that provides an easy way to obtain and install free TLS/SSL certificates, thereby enabling encrypted HTTPS on web servers. It simplifies the process by providing a softwa...
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By
Brian Boucheron
Nginx
Ubuntu
Ubuntu 20.04
Security
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Tutorial
With developer tools moving to the cloud, creation and adoption of cloud IDE (Integrated Development Environment) platforms is growing. code-server is Microsoft Visual Studio Code running on a remote server and access...
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By
Savic
Ubuntu 20.04
Development
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Tutorial
The Okteto CLI is an open-source project that can greatly improve your inner development-loop while working on Kubernetes. In this tutorial, you'll create a Kubernetes cluster in DigitalOcean and use it to run a stand...
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By
Pablo Chico de Guzman
Open Source
Kubernetes
DigitalOcean Managed Kubernetes
Development
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Tutorial
Docker is an application that simplifies the process of managing application processes in containers. In this tutorial, you'll install and use Docker Community Edition (CE) on Ubuntu 20.04. You'll install Docker itse...
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By
Brian Hogan
Ubuntu 20.04
Docker
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Tutorial
One of the most popular methods of iterating through datasets in JavaScript is the .map() method. .map() creates an array from calling a specific function on each item in the parent array. .map() is a non-mutating met...
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By
William Imoh
JavaScript
Development
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Tutorial
With developer tools moving to the cloud, creation and adoption of cloud IDE (Integrated Development Environment) platforms is growing. code-server is Microsoft Visual Studio Code running on a remote server and access...
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By
Savic
Kubernetes
Nginx
Let's Encrypt
VS Code
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Tutorial
What is smooth scrolling? Instead of clicking on a button and being instantly taken to a different part of the (same) page, the user is navigated there via a scroll animation. It's one of those subtle features on a s...
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By
James Quick
React
JavaScript
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The sed stream editor can be used to perform complex editing operations with a minimal amount of instruction. The automated nature of sed makes it perfect for use in scripts and background processing. This article w...
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By
Justin Ellingwood, Brian Hogan
Linux Basics
Linux Commands
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The sed stream editor is a non-interactive line editor that can perform powerful editing operations on text streams or files. Learning to use sed well will allow you to transform text with great speed and flexibility.
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By
Justin Ellingwood, Brian Hogan
Linux Basics
Linux Commands
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Tutorial
Laravel is an open-source PHP framework that provides a set of tools and resources to build modern PHP applications. With a complete ecosystem leveraging its built-in features, Laravel's popularity has grown rapidly i...
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By
Erika Heidi
PHP
PHP Frameworks
Ubuntu
Ubuntu 20.04
Nginx
LEMP
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Tutorial
In this quickstart guide, we’ll install Composer on an Ubuntu 20.04 server.
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By
Erika Heidi
PHP
Ubuntu
Ubuntu 20.04
Quickstart
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Tutorial
Jupyter Notebook is an open-source web application that lets you create and share interactive code, visualizations, and more. This tool can be used with several programming languages, including Python, Julia, R, Haske...
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By
Ubuntu 20.04
Python
Applications
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Tutorial
An open-source programming language, R specializes in statistical computing and graphics. In this tutorial, we will install R on an Ubuntu 20.04 server. For a more detailed version of this tutorial, with more thorough...
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By
Lisa Tagliaferri
Ubuntu 20.04
R
Quickstart
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Tutorial
Anaconda is an open-source package manager, environment manager, and distribution of the Python and R programming languages. This tutorial will guide you through installing the Python 3 version of Anaconda on an Ubunt...
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By
Lisa Tagliaferri
Ubuntu 20.04
Python
Quickstart
Development
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Tutorial
Jitsi Meet is an open-source video-conferencing application based on WebRTC. In this tutorial, you will install and configure a Jitsi Meet server on Debian 10. The default configuration allows anyone to create a new c...
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By
Elliot Cooper
Debian 10