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• three-way handshake

@startuml

actor Client as c
boundary Server as s

c -> s: SYN
s -> c: SYN/ACK
c -> s: ACK

@enduml

• Server
  • CLOSED
  • LISTEN
  • SYN_RCVD
  • ESTABLISHED
• Client
  • CLOSED
  • SYN_SENT
  • ESTABLISHED

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