The TCP/IP Handshake: A Live Demonstration

The perfect visual representation of the client-server handshake! The stoic, unassuming server in gray just standing there waiting to be connected to, while the flashy client in bright yellow actively initiates the connection. And there they are, literally shaking hands labeled as "TCP/IP" - the protocol suite that makes their relationship possible. Just like in real networking, the server looks slightly uncomfortable being approached, but is professionally obligated to accept the connection request. The client, meanwhile, has those glasses because it obviously needs to see where it's connecting to. Networking protocols have never been so awkwardly teenage.