NAME
sockstat
- list open sockets
SYNOPSIS
sockstat
[-46clnu]
[-f address_family]
[-p ports]
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.
- -f address_family
-
Limit listed sockets to those of the specified
address_family.
The following address families
are recognized:
inet,
for
AF_INET
;
inet6,
for
AF_INET6
;
and
local
or
unix,
for
AF_LOCAL
.
- -l
-
Show listening sockets.
- -n
-
Numeric output only.
No attempt will be made to look up symbolic names for addresses
and ports.
- -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.
- -u
-
Show
AF_LOCAL
(UNIX)
sockets.
If neither
-4, 6,
nor
-u
are specified,
sockstat
will list sockets in all three domains.
If neither
-c
nor
-l
are specified,
sockstat
will list both listening and connected sockets, as well as those
sockets that are in neither state.
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 datagram) for
UNIX
sockets.
LOCAL
ADDRESS
-
For Internet sockets, this is the address to which the local end
of the socket is bound (see
getsockname(2)).
For bound
UNIX
sockets, it is the socket's filename or
``-''.
FOREIGN
ADDRESS
-
The address to which the foreign end of the socket is bound (see
getpeername(2))
or
``-''
for unconnected
UNIX
sockets.
SEE ALSO
fstat(1),
netstat(1),
inet(4),
inet6(4),
unix(4)
HISTORY
The
sockstat
command appeared in
FreeBSD3.1.
It was then rewritten for
NetBSD3.0.
AUTHORS
This version of the
sockstat
command was written by
Andrew Brown
<atatat@NetBSD.org>.
This manual page was written by
Dag-Erling Smørgrav <des@FreeBSD.org>
and was adapted to match the
NetBSD
implementation by
Andrew Brown
<atatat@NetBSD.org>.