How to secure Apache with Let's Encrypt Certificates on RHEL 8

Originally published at: https://www.cyberciti.biz/faq/how-to-secure-apache-with-lets-encrypt-certificates-on-rhel-8/

I read that Let’s Encrypt is a free, automated, and open certificate for web server and other usages. How do I secure Apache with Let’s Encrypt Certificates on RHEL 8? How can I set up Let’s Encrypt Certificates on Red Hat Enterprise Linux version 8.x?