TCP Three-Way Handshake: How TCP Establishes a Reliable Connection

A technical article explaining the TCP Three-Way Handshake and how TCP establishes a reliable connection between two endpoints.

The article covers the three main stages of the handshake — SYN, SYN-ACK, and ACK — along with Initial Sequence Numbers, Acknowledgment Numbers, TCP connection establishment, and a practical communication example.

The work also includes a cybersecurity perspective, explaining the relationship between TCP connection establishment and SYN Flood attacks.

The content was written and structured as a technical educational document with clear explanations, networking diagrams, and practical examples, targeting readers interested in Networking, Network Security, and Cybersecurity.