Module 5 · Reliability and the public internet Lesson 13 of 15

HTTPS, domains and certificates

Worked example

certbot --nginx -d app.example.com issues the certificate and rewrites the nginx config; the renew timer keeps it valid without you.

Your practice task

Point a domain at a VM, install a certificate, and confirm the padlock by loading the site.

Do this before moving on. Reading a solution teaches the shape of it; typing it teaches you.

Key takeaway

A real deployment answers on a domain name over HTTPS with a certificate that renews itself. This is one command with certbot, and it is the difference between a demo and a site.

Almost there

15 lessons left of 15

Finish every lesson to unlock the certificate. Each one ends in a practice task — do them and the final project brief writes itself.