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Master SSH, Networking & Multi-Machine Workflows

Application: Your browser creates an HTTP request for github.com/
Transport: TCP wraps it in a segment with source/destination ports (your:52847 → server:443)
Network: IP wraps that in a packet with source/destination IPs
Physical: Ethernet wraps that in a frame with source/destination MACs, puts it on the wire

A hands-on journey from networking basics to fleet management. Complete lessons, earn XP, unlock achievements, and level up from Pinger to NetOps Master.

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