Let's Encrypt currently generates certificates using the ECDSA (Elliptic Curve Digital Signature Algorithm) algorithm, instead of using RSA (Rivest, Shamir and Adleman).
In this post we will talk about how to generate an SSL certificate using Let's Encrypt with a Wildcard to a domain and using DNS as a challenge.
A virtual scenario will be designed to emulate the infrastructure of a medium-sized company, although in order to reduce the use of resources required for the deployment of the scenario, the services that have coherence in the same machine will be grouped together, making, for example, that different databases are in the same host.
