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Netstat status codes
A TCP connection can have one of 12 states, given by a code word.
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CLOSED |
The connection is disconnected and not being used |
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LISTEN |
Your computer is waiting for an incoming connection. This is an open port. |
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SYN_SENT |
Actively trying to establish connection |
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SYN_RECEIVED |
Initial synchronization of the connection under way, about to connect |
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ESTABLISHED |
Connection has been established, connection is active |
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CLOSE_WAIT |
Remote shut down: waiting for the socket to close |
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FIN_WAIT_1 |
Socket closed, shutting down connection |
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CLOSING |
Closed, then remote shutdown: awaiting acknowledgement. Attempting to shut down connection |
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LAST_ACK |
Remote shut down, then closed: awaiting acknowledgement |
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FIN_WAIT_2 |
Socket closed, waiting for shutdown from other computer |
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TIME_WAIT |
Wait after close for remote shutdown retransmission |
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TCB_DISCARD |
TCP connection control block discarded |