Let's Encrypt on Ubuntu 16.04 LTS

Let's Encrypt is a certificate authority that launched on April 12, 2016. It provides free X.509 certificates for Transport Layer Security encryption. See my first article on Let's Encrypt here for more details:

Here is how to use on Ubuntu 16.04 LTS with an existing webserver (Apache, Nginx, etc).


apt-get update
git clone
cd letsencrypt/


Follow the instructions on the screen to select which domain will be secured with a certificate.