sockstat man page on FreeBSD

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SOCKSTAT(1)		  BSD General Commands Manual		   SOCKSTAT(1)

NAME
     sockstat — list open sockets

SYNOPSIS
     sockstat [-46cLlu] [-p ports] [-P protocols]

DESCRIPTION
     The sockstat command lists open Internet or UNIX domain sockets.

     The following options are available:

     -4		 Show AF_INET (IPv4) sockets.

     -6		 Show AF_INET6 (IPv6) sockets.

     -c		 Show connected sockets.

     -L		 Only show Internet sockets if the local or foreign addresses
		 are not in the loopback network prefix 127.0.0.0/8, or do not
		 contain the IPv6 loopback address ::1.

     -l		 Show listening sockets.

     -p ports	 Only show Internet sockets if either the local or foreign
		 port number is on the specified list.	The ports argument is
		 a comma-separated list of port numbers and ranges specified
		 as first and last port separated by a dash.

     -P protocols
		 Only show sockets of the specified protocols.	The protocols
		 argument is a comma-separated list of protocol names, as they
		 are defined in protocols(5).

     -u		 Show AF_LOCAL (UNIX) sockets.

     If neither -4, -6 or -u is specified, sockstat will list sockets in all
     three domains.

     If neither -c or -l is specified, sockstat will list both listening and
     connected sockets.

     The information listed for each socket is:

     USER	      The user who owns the socket.

     COMMAND	      The command which holds the socket.

     PID	      The process ID of the command which holds the socket.

     FD		      The file descriptor number of the socket.

     PROTO	      The transport protocol associated with the socket for
		      Internet sockets, or the type of socket (stream or data‐
		      gram) for UNIX sockets.

     LOCAL ADDRESS    For Internet sockets, this is the address the local end
		      of the socket is bound to (see getsockname(2)).  For
		      bound UNIX sockets, it is the socket's filename.	For
		      other UNIX sockets, it is a right arrow followed by the
		      endpoint's filename, or “??” if the endpoint could not
		      be determined.

     FOREIGN ADDRESS  (Internet sockets only) The address the foreign end of
		      the socket is bound to (see getpeername(2)).

     Note that TCP sockets in the AF_INET or AF_INET6 domains that are not in
     one of the LISTEN, SYN_SENT, or ESTABLISHED states may not be shown by
     sockstat; use netstat(1) to examine them instead.

SEE ALSO
     fstat(1), netstat(1), procstat(1), inet(4), inet6(4), protocols(5)

HISTORY
     The sockstat command appeared in FreeBSD 3.1.

AUTHORS
     The sockstat command and this manual page were written by Dag-Erling
     Smørgrav ⟨des@FreeBSD.org⟩.

BSD				 July 9, 2009				   BSD
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