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    SubjectRe: connect() occasionally succeeds improperly to localhost port 1024-4999
       Date: Sun, 29 Aug 1999 23:28:51 -0400 (EDT)
    From: Fyodor <fyodor@dhp.com>

    Sometimes a connect() to localhost will succeed even if there is no
    process listening on the port. This happens when the ephemeral
    local port selected by the kernel during the connect() happens to
    be the same port you are trying to connect to.

    Connecting to self is %100 legal behavior and has been a part of the
    BSD sockets API for years.

    Later,
    David S. Miller
    davem@redhat.com

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