Certbot – is a tool that helps you get and install free HTTPS certificates from Let’s Encrypt, an open certificate authority. It can also work
Knowledge Base
Certificate Authority
Certificate Authority (CA) is a trusted third-party organization that issues digital certificates that verify the identity of websites. Analogy: Like a notary public who verifies the
Challenge-Response Authentication
Challenge-Response Authentication: A method of authentication where one party presents a challenge (often a random number) and the other party must provide the correct response,