mirror of https://github.com/mkerrisk/man-pages
80 lines
2.5 KiB
Groff
80 lines
2.5 KiB
Groff
.\" Copyright (c) 2001 Martin Schulze <joey@infodrom.org>
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.\"
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.\" %%%LICENSE_START(GPLv2+_DOC_FULL)
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.\" This is free documentation; you can redistribute it and/or
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.\" modify it under the terms of the GNU General Public License as
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.\" published by the Free Software Foundation; either version 2 of
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.\" the License, or (at your option) any later version.
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.\"
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.\" The GNU General Public License's references to "object code"
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.\" and "executables" are to be interpreted as the output of any
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.\" document formatting or typesetting system, including
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.\" intermediate and printed output.
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.\"
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.\" This manual is distributed in the hope that it will be useful,
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.\" but WITHOUT ANY WARRANTY; without even the implied warranty of
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.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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.\" GNU General Public License for more details.
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.\"
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.\" You should have received a copy of the GNU General Public
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.\" License along with this manual; if not, see
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.\" <http://www.gnu.org/licenses/>.
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.\" %%%LICENSE_END
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.\"
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.\" 2008-09-04, mtk, taken from Debian downstream, with a few light edits
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.\"
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.TH NETWORKS 5 2008-09-04 "GNU/Linux" "Linux System Administration"
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.SH NAME
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networks \- network name information
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.SH DESCRIPTION
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The file
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.I /etc/networks
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is a plain ASCII file that describes known DARPA networks and symbolic
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names for these networks.
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Each line represents a network and has the following structure:
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.PP
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.RS
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.I name number aliases ...
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.RE
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.PP
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where the fields are delimited by spaces or tabs.
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Empty lines are ignored.
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The hash character (\fB#\fP) indicates the start of a comment:
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this character, and the remaining characters up to
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the end of the current line,
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are ignored by library functions that process the file.
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.PP
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The field descriptions are:
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.TP
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.I name
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The symbolic name for the network.
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Network names can contain any printable characters except
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white-space characters or the comment character.
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.TP
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.I number
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The official number for this network in numbers-and-dots notation (see
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.BR inet (3)).
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The trailing ".0" (for the host component of the network address) may be omitted.
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.TP
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.I aliases
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Optional aliases for the network.
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.PP
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.PP
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This file is read by the
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.BR route (8)
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and
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.BR netstat (8)
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utilities.
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Only Class A, B, or C networks are supported, partitioned networks
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(i.e., network/26 or network/28) are not supported by this file.
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.SH FILES
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.TP
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.I /etc/networks
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The networks definition file.
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.SH SEE ALSO
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.BR getnetbyaddr (3),
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.BR getnetbyname (3),
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.BR getnetent (3),
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.BR netstat (8),
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.BR route (8)
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