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Asked: 2026-05-19T23:33:49+00:00

If I have sysctl tw_reuse=0 and tw_recycle=0, and netstat doesn’t report any TIME_WAIT connections,

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If I have sysctl tw_reuse=0 and tw_recycle=0, and netstat doesn’t report any TIME_WAIT connections, that means…? It’s local network connections between two servers, A -> B, A has TIME_WAIT connections to B in netstat, but B to A not.

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  1. Editorial Team

    Only the side of the connection that closes the communication can be in TIME_WAIT state, see the relevant UNIX Socket FAQ sequence diagram.

    Remember that TCP guarantees all data
    transmitted will be delivered, if at
    all possible. When you close a socket,
    the server goes into a TIME_WAIT
    state, just to be really really sure
    that all the data has gone through.

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