1.\"- 2.\" Copyright (c) 1999 Dag-Erling Coïdan Smørgrav 3.\" All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright 9.\" notice, this list of conditions and the following disclaimer 10.\" in this position and unchanged. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 3. The name of the author may not be used to endorse or promote products 15.\" derived from this software without specific prior written permission. 16.\" 17.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27.\" 28.\" $FreeBSD$ 29.\" 30.Dd August 27, 2015 31.Dt SOCKSTAT 1 32.Os 33.Sh NAME 34.Nm sockstat 35.Nd list open sockets 36.Sh SYNOPSIS 37.Nm 38.Op Fl 46cLlsu 39.Op Fl j Ar jid 40.Op Fl p Ar ports 41.Op Fl P Ar protocols 42.Sh DESCRIPTION 43The 44.Nm 45command lists open Internet or 46.Ux 47domain sockets. 48.Pp 49The following options are available: 50.Bl -tag -width Fl 51.It Fl 4 52Show 53.Dv AF_INET 54(IPv4) sockets. 55.It Fl 6 56Show 57.Dv AF_INET6 58(IPv6) sockets. 59.It Fl c 60Show connected sockets. 61.It Fl j Ar jid 62Show only sockets belonging to the specified jail ID. 63.It Fl L 64Only show Internet sockets if the local and foreign addresses are not 65in the loopback network prefix 66.Li 127.0.0.0/8 , 67or do not contain the IPv6 loopback address 68.Li ::1 . 69.It Fl l 70Show listening sockets. 71.It Fl p Ar ports 72Only show Internet sockets if the local or foreign port number 73is on the specified list. 74The 75.Ar ports 76argument is a comma-separated list of port numbers and ranges 77specified as first and last port separated by a dash. 78.It Fl P Ar protocols 79Only show sockets of the specified 80.Ar protocols . 81The 82.Ar protocols 83argument is a comma-separated list of protocol names, 84as they are defined in 85.Xr protocols 5 . 86.It Fl s 87Display the protocol state, if applicable. 88This is currently only implemented for SCTP and TCP. 89.It Fl u 90Show 91.Dv AF_LOCAL 92.Pq Ux 93sockets. 94.El 95.Pp 96If neither 97.Fl 4 , 6 98or 99.Fl u 100is specified, 101.Nm 102will list sockets in all three domains. 103.Pp 104If neither 105.Fl c 106or 107.Fl l 108is specified, 109.Nm 110will list both listening and connected sockets. 111.Pp 112The information listed for each 113socket is: 114.Bl -tag -width "FOREIGN ADDRESS" 115.It Li USER 116The user who owns the socket. 117.It Li COMMAND 118The command which holds the socket. 119.It Li PID 120The process ID of the command which holds the socket. 121.It Li FD 122The file descriptor number of the socket. 123.It Li PROTO 124The transport protocol associated with the socket for Internet 125sockets, or the type of socket 126.Pq stream, datagram, or seqpacket 127for 128.Ux 129sockets. 130.It Li LOCAL ADDRESS 131For Internet sockets, this is the address the local end of the socket 132is bound to (see 133.Xr getsockname 2 ) . 134For bound 135.Ux 136sockets, it is the socket's filename. 137For other 138.Ux 139sockets, it is a right arrow followed by the endpoint's filename, or 140.Dq Li ?? 141if the endpoint could not be determined. 142.It Li FOREIGN ADDRESS 143(Internet sockets only) 144The address the foreign end of the socket is bound to (see 145.Xr getpeername 2 ) . 146.El 147.Pp 148If a socket is associated with more than one file descriptor, 149it is shown multiple times. 150If a socket is not associated with any file descriptor, 151the first four columns have no meaning. 152.Sh SEE ALSO 153.Xr fstat 1 , 154.Xr netstat 1 , 155.Xr procstat 1 , 156.Xr inet 4 , 157.Xr inet6 4 , 158.Xr protocols 5 159.Sh HISTORY 160The 161.Nm 162command appeared in 163.Fx 3.1 . 164.Sh AUTHORS 165The 166.Nm 167command and this manual page were written by 168.An Dag-Erling Sm\(/orgrav Aq Mt des@FreeBSD.org . 169