We’ll show you, How to install Let’s Encrypt on Ubuntu 16.04 with Nginx. Let’s Encrypt is a relatively new SSL Certificate Authority (CA) that provides completely free SSL certificates that are just as secure as the paid certificates issued by the major trusted certificate authorities. Let’s Encrypt is supported by major players like Mozilla, Akamai, Cisco, the EFF and managed by the Linux Foundation. In this article we will guide you through the steps of installing Let’s Encrypt SSL certificate on an Ubuntu 16.04 VPS with Nginx web server. We assume that you already have Nginx installed and configured on your server. Installing Let’s Encrypt on Ubuntu 16.04 with Nginx, is really an easy task and should take around 10 minutes.