еще одна утилита для исследования сокетов (another utility to investigate sockets)
STATE-FILTER
STATE-FILTER allows to construct arbitrary set of states to
match. Its syntax is sequence of keywords state and exclude
followed by identifier of state.
Available identifiers are:
All standard TCP states: established, syn-sent, syn-recv,
fin-wait-1, fin-wait-2, time-wait, closed, close-wait,
last-ack, listening and closing.
all - for all the states
connected - all the states except for listening and closed
synchronized - all the connected states except for syn-
sent
bucket - states, which are maintained as minisockets, i.e.
time-wait and syn-recv
big - opposite to bucket
