Mission Tech · Path

Follow the full request path.

Mission-based learning through Signal Path I. Six regions, 24 missions. No login required.

Active · Networking 01, Lectures 1-4

Signal Path · Part I

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Signal Path I: Browser to Server

6 regions · 24 missions

What actually happens when you type a URL and press Enter? Follow the full request path: DNS resolution, TCP handshake, NAT translation, IP routing, Ethernet frames. One mission at a time. Built for Networking Zero to Hero, Lectures 1-4.

DNS TCP NAT IP Routing 24 missions
Start Signal Path I →
Coming Soon · Networking 01, Lectures 5-8

Signal Path II

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Trust, Encryption, and the Secure Web

The request works. Now make it secure.

Follow the request past TCP into HTTPS. Trace the TLS handshake from hello to session key. See how browsers decide to trust a server, what certificates actually do, and what HTTPS hides and what it does not.

TLS HTTPS Certificates Trust HTTP/2 CDN
Dropping with Lectures 5-8
Start with Signal Path I. Then secure it in Path II.