SSH-key-based authentication provides a more secure alternative to password-based authentication. In this tutorial we'll learn how to set up SSH key-based authentication on an Ubuntu 16.04 installation.

When using the Nginx web server, server blocks (similar to the virtual hosts in Apache) can be used to encapsulate configuration details and host more than one domain off of a single server. In this guide, we'll discu...

When configuring a server for a website, there are some common conditional actions you may need to implement. For example, maybe some files should be cached by the user's browser for longer than others, or some parts ...

BigBlueButton is an open source, feature-rich virtual classroom where you can teach your students. In this guide, you will install a BigBlueButton server along with the client interface called Greenlight. Greenlight m...

MongoDB is a free and open-source NoSQL document database used commonly in modern web applications. This tutorial will help you set up MongoDB on your server for a production application environment.

In this tutorial, we will set up a Django development environment. We’ll install Python 3, pip 3, Django and virtualenv in order to provide you with the tools necessary for developing web applications with Django.

ProxySQL is a SQL-aware proxy server that can be positioned between your application and your database to create a caching layer to optimize MySQL queries. In this tutorial, you will use ProxySQL to set up transparent...

Docker Swarm is the Docker-native solution for deploying a cluster of Docker hosts. You can use it to quickly deploy a cluster of Docker hosts running either on your local machine or on supported cloud platforms. Befo...

Kubernetes is a container orchestration system that manages containers at scale. In this guide, you will set up a Kubernetes cluster from scratch with Kubeadm and deploy containerized applications on it.

Unison is an open-source file synchronization tool. In this tutorial, you will install and configure Unison on a pair of servers and use it backup up a directory. You will also configure Unison to use SSH as the secur...

Kubernetes is an open source container orchestration system. It allows you to create, update, and scale containers without worrying about downtime. In this tutorial, you will deploy a PHP 7 application on a Kubernetes...

In this tutorial, we will go over the installation of the Elasticsearch ELK Stack on Ubuntu 16.04 (that is, Elasticsearch 2.3.x, Logstash 2.3.x, and Kibana 4.5.x). We will also show you how to configure it to gather a...

You can greatly increase the security of your Nginx server by using a module like NAXSI. NAXSI (Nginx Anti XSS & SQL Injection) is a free, third-party Nginx module that provides web application firewall features. In t...

Rancher supports Docker Machine-based provisioning, which makes it easy to create Docker hosts on cloud providers, or inside your own data center. In this tutorial, you'll use the DigitalOcean driver that's built into...

There are two methods for installing Docker on Ubuntu 16.04. One method involves installing it on an existing installation of the operating system. The other involves spinning up a server with a tool called Docker Mac...

OpenFaaS is a free and open-source framework for building and hosting serverless functions. With official support for both Docker Swarm and Kubernetes, it lets you deploy your applications without having to manage the...

In this tutorial, you'll build a basic Node.js TCP server, along with a client to test the server. You'll run your server as a background process using a powerful Node.js process manager called PM2. Then you'll config...

Apache Tomcat is a web server and servlet container that is used to serve Java applications. Tomcat is an open source implementation of the Java Servlet and JavaServer Pages technologies, released by the Apache Softwa...

Unit testing in Ansible is key to making sure roles function as intended. Molecule makes this process easier by allowing you to specify scenarios that test roles against different environments. In this guide, you will...

When a developer is making continuous changes to an application, a deployment system with webhooks can streamline development, particularly for teams. Integrating Slack notifications for code changes into a team's wor...