Delivering a secure, fast, and robust [Node.js](https://nodejs.org/en/) application is vital for a good user experience. This tutorial explains how to prepare your Node.js application for production. * Add a [non-root sudo user](https://docs.vultr.com/how-to-use-sudo-on-a-vultr-cloud-server#create-a-sudo-user-on-debian--ubuntu). * Follow the [best practices to update Ubuntu](https://docs.vultr.com/how-to-update-a-vultr-cloud-server#how-to-update-debian--ubuntu). A firewall ensures only specific ......