Bound, Unbound, Idle, Listening, Post: 302712029

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Operating Systems Solaris Bound, Unbound, Idle, Listening, Post 302712029 by fpmurphy on Monday 8th of October 2012 11:00:40 AM

10-08-2012

Registered User

A socket can be in various states (bound to an address/port, unbound, listening, idle, etc.)

Other than ESTABLISHED, here are some other possible states that netstat can output:

Quote:

BOUND Bound, ready to connect or listen.
UNBOUND Not waiting for anything,
CLOSED Closed. The socket is not being used.
CLOSING Closed, then remote shutdown; awaiting acknowledgment.
CLOSE_WAIT Remote shutdown; waiting for the socket to close.
FIN_WAIT_1 Socket closed; shutting down connection.
FIN_WAIT_2 Socket closed; waiting for shutdown from remote.
IDLE Idle, opened but not bound.
LAST_ACK Remote shutdown, then closed; awaiting acknowledgment.
LISTEN Listening for incoming connections.
SYN_RECEIVED Initial synchronization of the connection under way.
SYN_SENT Actively trying to establish connection.
TIME_WAIT Wait after close for remote shutdown retransmission.

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LEARN ABOUT NETBSD

unbound

unbound(8)                                                        unbound 1.4.17                                                        unbound(8)

NAME

       unbound - Unbound DNS validating resolver 1.4.17.

SYNOPSIS

       unbound [-h] [-d] [-v] [-c cfgfile]

DESCRIPTION

       Unbound is an implementation of a DNS resolver, that does caching and DNSSEC validation.

       The available options are:

       -h     Show the version and commandline option help.

       -c cfgfile
              Set   the   config   file   with   settings   for   unbound   to  read  instead  of  reading  the  file  at  the  default  location,
              /etc/unbound/unbound.conf. The syntax is described in unbound.conf(5).

       -d     Debug flag, do not fork into the background, but stay attached to the console. This flag will also  delay  writing  to  the  logfile
              until the thread-spawn time. So that most config and setup errors appear on stderr.

       -v     Increase  verbosity.  If  given  multiple times, more information is logged.  This is in addition to the verbosity (if any) from the
              config file.

SEE ALSO

       unbound.conf(5), unbound-checkconf(8).

AUTHORS

       Unbound developers are mentioned in the CREDITS file in the distribution.

NLnet Labs                                                         May 24, 2012                                                         unbound(8)