DigitalOcean is excited to continue building out its collection of technical articles related to server administration and software engineering. To keep the DigitalOcean community unified and to ensure that articles f...

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.

Forgetting passwords happens to the best of us. If you forget or lose the root password to your MySQL or MariaDB database, you can still gain access and reset the password if you have access to the server and a sudo-e...

DigitalOcean's web based control panel provides a convenient, point-and-click interface for managing Droplets. There are many times, however, when a command-line tool may be a preferable alternative. doctl, the offic...

Let's Encrypt is a Certificate Authority (CA) that provides an easy way to obtain and install free TLS/SSL certificates, enabling encrypted HTTPS on web servers. In this tutorial, you will use Certbot to obtain a free...

This tutorial will show you how to set up a firewall with UFW on Debian 10.

This tutorial will show you how to set up a firewall with UFW on Debian 9.

Let's Encrypt is a Certificate Authority (CA) that provides an easy way to obtain and install free TLS/SSL certificates, enabling encrypted HTTPS on web servers. In this tutorial, you will use Certbot to obtain a free...

The previous section used Terraform and Ansible to provision resources (Droplets, Load Balancers, and Floating IPs) and deploy your WordPress application. In this supplemental section, we discuss some ways to simplify...

The previous chapter demonstrated how to reduce downtime by adding redundancy at the web frontend layer of your infrastructure. If your service works with files and data, you'll also need a centralized backend — which...

It doesn't matter if you're running a small blog, a large application, or an API; you never want it to be offline. A single point of failure is any part of your infrastructure that will cause downtime if it fails. A h...

In this tutorial, we will show you how to use Let's Encrypt to obtain a free SSL certificate and use it with Nginx on Ubuntu 18.04. We will also show you how to automatically renew your SSL certificate. If you're runn...

dry is a simple but extensive terminal application built to interact with Docker containers and their images. Using dry removes the repetition involved when executing routine Docker Engine commands, and also provides ...

In this tutorial, we'll walk through an example of moving and processing data from a MongoDB database to Elasticsearch using Transporter's built-in adaptors and a custom transformer written in JavaScript.

This is the first hands-on portion of the book. First, we'll go over the tools we'll be using, how they fit together, and how they can be beneficial to you as you begin to create and manage your infrastructure on Digi...

Before we set sail, we want to share a brief infrastructure history lesson. This will help provide context on the needs that cloud infrastructure fills and how to take full advantage of it to get the most value, perfo...

In the introduction, we said that this book would give you the tools and the understanding you need to run a successful infrastructure on DigitalOcean — but what is DigitalOcean, and who are we to tell you what to do?

How do I scale and grow my infrastructure for my business? More importantly, how do I prevent a crisis? How do I know what my decisions will also impact? Am I asking the right questions? This book will help answer qu...

DigitalOcean Volumes are scalable, SSD-based block storage devices. This tutorial covers how to create a passphrase-protected encrypted disk on your Volume containing a file systemm anually mount the encrypted file sy...

Vault is an open-source tool that provides a secure, reliable way to store and distribute secrets like API keys, access tokens, and passwords. Software like Vault can be critically important when deploying application...