TCP Three-Way Handshake Process

TCP is a Transport Control Protocol which is a reliable and connection oriented protocol which works at Layer 4 _Transport Layer

Header information contains Source and Destination Port

TCP Three-Way Handshake
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support client want to establish a communication to the server

First it will send a TCP SYN segment to the server

Now the server will send SYN/ACK signal to the client

Now the client acknowledges the request and sent an ACK signal back to the server

Syn :
Used to initiate and establish a connection. It also helps you to synchronize sequence numbers between devices.

ACK
Helps to confirm to the other side that it has received the SYN.

SYN-ACK
SYN message from local device and ACK of the earlier packet.

FIN
Used to terminate a connection.