1.\" Copyright (c) 1983, 1991, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 3. Neither the name of the University nor the names of its contributors 13.\" may be used to endorse or promote products derived from this software 14.\" without specific prior written permission. 15.\" 16.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 17.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 20.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26.\" SUCH DAMAGE. 27.\" 28.Dd June 5, 1993 29.Dt NETWORKS 5 30.Os 31.Sh NAME 32.Nm networks 33.Nd network name data base 34.Sh DESCRIPTION 35The 36.Nm 37file contains information regarding 38the known networks which comprise the 39.Tn DARPA 40Internet. 41For each network a single line should be present with the following information: 42.Bd -unfilled -offset indent 43official network name 44network number 45aliases 46.Ed 47.Pp 48Items are separated by any number of blanks and/or tab characters. 49A ``#'' indicates the beginning of a comment; characters up to the end of 50the line are not interpreted by routines which search the file. 51This file is normally created from the official network data base 52maintained at the Network Information Control Center 53.Pq Tn NIC , 54though local 55changes may be required to bring it up to date regarding unofficial aliases 56and/or unknown networks. 57.Pp 58Network numbers may be specified in the conventional 59``.'' (dot) notation using the 60.Xr inet_network 3 61routine 62from the Internet address manipulation library, 63.Xr inet 3 . 64Network names may contain any printable character other than a field 65delimiter, newline, or comment character. 66.Sh FILES 67.Bl -tag -width /etc/networks -compact 68.It Pa /etc/networks 69The 70.Nm 71file resides in 72.Pa /etc . 73.El 74.Sh SEE ALSO 75.Xr getnetent 3 76.Sh HISTORY 77The 78.Nm 79file format appeared in 80.Bx 4.2 . 81.Sh BUGS 82A name server should be used instead of a static file. 83