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ANSWERED: What is TCP? How it works? What is the 3 way handshake?

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Austin Songer 2020-01-26 01:18:03 +00:00
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<summary>What is TCP? How it works? What is the 3 way handshake?</summary><br><b>
TCP 3-way handshake or three-way handshake is a process which is used in a TCP/IP network to make a connection between server and client.
A three-way handshake is primarily used to create a TCP socket connection. It works when:
- A client node sends a SYN data packet over an IP network to a server on the same or an external network. The objective of this packet is to ask/infer if the server is open for new connections.
- The target server must have open ports that can accept and initiate new connections. When the server receives the SYN packet from the client node, it responds and returns a confirmation receipt – the ACK packet or SYN/ACK packet.
- The client node receives the SYN/ACK from the server and responds with an ACK packet.
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