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.\"-
.\" Copyright (c) 1999 Dag-Erling Codan Smrgrav
.\" Copyright (c) 2018-2023 Thorsten Alteholz
.\" All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer
.\" in this position and unchanged.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\" 3. The name of the author may not be used to endorse or promote products
.\" derived from this software without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
.\"
.\" $FreeBSD: src/usr.bin/sockstat/sockstat.1,v 1.22 2008/05/19 11:32:44 bms Exp $
.\"
.Dd May 18, 2008
.Dt SOCKSTAT 1
.Os
.Sh NAME
.Nm sockstat
.Nd list open sockets
.Sh SYNOPSIS
.Nm
.Op Fl 46clohu
.Op Fl p Ar ports
.Op Fl P Ar pid|process
.Op Fl U Ar uid|user
.Op Fl G Ar gid|group
.Op Fl R Ar protocol
.Sh DESCRIPTION
The
.Nm
command lists open Internet or
.Ux
domain sockets.
.Pp
The following options are available:
.Bl -tag -width Fl
.It Fl 4
Show IPv4 sockets only.
.It Fl 6
Show IPv6 sockets only.
.It Fl u
Also show unix sockets.
.It Fl c
Show connected sockets.
.It Fl l
Show listening sockets.
.It Fl o
Keep old behaviour by combining all filters with | instead of &
.It Fl h
Show a usage summary.
.It Fl p Ar ports
Only show Internet sockets if either the local or foreign port number
is on the specified list.
The
.Ar ports
argument is a comma-separated list of port numbers and ranges
specified as first and last port separated by a dash.
.It Fl P Ar pid|process
Only show sockets of the specified
.Ar pid|process .
The
.Ar pid|process
argument is a process name or pid.
.It Fl U Ar uid|user
Only show sockets of the specified
.Ar uid|user .
The
.Ar uid|user
argument is a username or uid.
.It Fl G Ar gid|group
Only show sockets of the specified
.Ar gid|group .
The
.Ar gid|group
argument is a groupname or gid.
.It Fl R Ar protocol
Only show sockets of the specified
.Ar protocol .
The
.Ar protocol
argument is either 'raw', 'tcp', 'udp' or 'unix'
.El
.Pp
If neither
.Fl c
or
.Fl l
is specified,
.Nm
will list both listening and connected sockets.
.Pp
The information listed for each
socket is:
.Bl -tag -width "FOREIGN ADDRESS"
.It Li USER
The user who owns the socket.
.It Li COMMAND
The command which holds the socket.
.It Li PID
The process ID of the command which holds the socket.
.It Li FD
The file descriptor number of the socket.
.It Li PROTO
The transport protocol associated with the socket for Internet
sockets, or the type of socket (stream or datagram) for
.Ux
sockets.
.It Li LOCAL ADDRESS
For Internet sockets, this is the address the local end of the socket
is bound to (see
.Xr getsockname 2 ) .
For bound
.Ux
sockets, it is the socket's filename.
For other
.Ux
sockets, it is a right arrow followed by the endpoint's filename, or
.Dq Li ??
if the endpoint could not be determined.
.It Li FOREIGN ADDRESS
(Internet sockets only)
The address the foreign end of the socket is bound to (see
.Xr getpeername 2 ) .
.El
.Sh SEE ALSO
.Xr netstat 1 ,
.Xr protocols 5
.Sh HISTORY
The
.Nm
command appeared in
.Fx 3.1 .
.Sh AUTHORS
.Pp
The
.Nm
command and this manual page were written by Dag-Erling Sm\(/orgrav <des@FreeBSD.org>.
.Pp
The
.Nm
command was ported to Linux by William Pitcock <nenolod@nenolod.net>.
|
