SSL Complete Guide 2021: HTTP to HTTPS - Cloudflare and Self-Signed Certificate

The video tutorial demonstrates setting up Cloudflare with a self-signed certificate for a web server. It covers changing name servers, testing the connection, and troubleshooting SSL certificate issues. The tutorial concludes with reverting name server changes and preparing to create a valid certificate using a Certification Authority.

Describe the process of testing the connection between the droplet and Cloudflare after setting up the DNS records.

What error occurs when the self-signed certificate is not valid under 'full strict' SSL mode?

What is the significance of the certificate signing request (CSR) in the process of obtaining a valid certificate?