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faq > Glossary > SYN SYN-ACK ACK

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TCP 3-way handshake to establish a connection.  A connection-oriented protocol, TCP (sitting on top of IP) requires a bidirectional connection between client and server gets established before application layer data can be exchanged.  The connection needs to be torn down via TCP FIN or TCP RST flags.


Last updated on Feb 14, 2015 at 0:53 by generalnetworkerror