Portmint How Networks & the Internet Work
Taught by PipAhoy — Pip here, your lighthouse keeper. When you open a page, a tiny miracle happens in under a second: your device finds a machine on the other side of the world and pulls a page back. It can feel like magic, but it's really a short chain of plain, sensible steps.
In these nine lessons we'll walk that chain, one calm stop at a time. How your device joins Wi-Fi. How it gets a number called an IP address. How a name turns into that number. How your message gets cut into packets, handed router to router, answered by a server, and locked up safe with HTTPS.
No AI, no jargon, no overwhelm. Just a steady beacon. 🔦
- What a Network Even Is Free previewA plain-language intro to networks — devices agreeing to pass messages, and how the internet is just the biggest network of networks.
- How Wi-Fi Connects You 🔒Wi-Fi is just radio between your device and your router. Learn what the router does, why a password matters, and why walls slow you down.
- IP Addresses: Everyone Has a Number 🔒What an IP address is, how your router hands out local numbers, and why a public number lets replies find your exact device.
- DNS: Turning Names Into Numbers 🔒DNS turns a name like portmint.com into the IP number behind it, following a chain of helpers, caching answers, and keeping names steady.
- Packets: The Postcards of the Net 🔒How your message is split into small numbered packets that each carry a from-and-to address and get put back in order at the other end.
- Routers and a Packet's Journey 🔒How a packet hops router to router across the world, how it finds a path, and what happens when one road is blocked.
- What a Server Actually Is 🔒A server is just an ordinary computer kept always on, waiting for requests and answering them. Learn the client-and-server idea plainly.
- HTTP: The Language of the Web 🔒HTTP is the request-and-response language your browser and a server use to pass web pages back and forth.
- HTTPS: Locking the Conversation 🔒How HTTPS seals your web traffic in a locked box only the right server can open, why the padlock protects passwords and payments.
What you get
- 📚9 plain-English lessons, taught by Pip — no jargon, no prior tech knowledge needed.
- ✅A quick quiz after every lesson, so what you learn actually sticks — and your progress saves as you go.
- 🎓A verifiable Portmint Certificate when you finish — reviewed by a real person, and worth listing on your résumé and LinkedIn.
- ♾️Lifetime access, yours for good — learn at your own pace, revisit anytime.
- 🐙Ask Pip anything as you learn — he's right here on the page.
- 💚Free for Portmint employees — just sign in with your Portmint account.
Start free — unlock the rest when you're ready
The first 1 lesson is a free preview. Then $129 unlocks all 9 lessons plus the certificate — yours for good, no subscription.
Start the free preview →🎓 Capstone — build it, share it, get certified
Finished the lessons? Prove it. Build a clear diagram + write-up tracing exactly what happens when you load a web page, from your click to the server and back that uses what you learned here, then share it publicly and thank Portmint for the education, and email it to capstone@portmint.net. A real person on the Portmint team reviews every submission — pass, and you earn a verifiable Portmint Certificate worth listing on your résumé and LinkedIn. (Optional, but it's how a course becomes something real.)
Submit my capstone →