How the internet and networks work From your device to a server on another continent: addresses, packets and ports, DNS, encryption and the journey of a link, then HTTP, the language of the web. The foundation you need before front ends and servers.
Lessons 0 Overview From your device to a server on another continent: addresses, packets and ports, DNS, encryption and the journey of a link, then HTTP, the language of the web. The foundation you need before front ends and servers. 1 Networks and addresses: from your device to the world How a message gets from your phone to a server on another continent: IP addresses, routers, packets, ports, and TCP versus UDP. 2 From link to page: DNS and the full journey What happens between clicking a link and seeing the page: the parts of a URL, DNS turning a name into an address, TLS encryption, then the browser drawing the page. 3 HTTP: how browsers and servers talk Requests and responses, the GET and POST verbs, the status codes 200, 404 and 500, headers and cookies. The base of every website and every API. 4 Wrap-up and resources The takeaways and glossary of this track.