how to install ssl certificate on ubuntu 20.04 code example

Example: install ssl ubuntu 20.04

Step 1 – Installing the «Let's Encrypt» package. ...
Step 2 – Standalone server for getting the «Let's Encrypt» SSL certificate. ...
Step 3 – Automatic installation of the SSL certificate on nginx and Apache web servers. ...
Step 4 – «Let's Encrypt» Wildcard SSL certificate