/share/man/man5/networks.5

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32.\"     @(#)networks.5	8.1 (Berkeley) 6/5/93
33.\" $FreeBSD$
34.\"
35.Dd June 5, 1993
36.Dt NETWORKS 5
37.Os
38.Sh NAME
39.Nm networks
40.Nd network name data base
41.Sh DESCRIPTION
42The
43.Nm
44file contains information regarding
45the known networks which comprise the
46.Tn DARPA
47Internet.
48For each network a single line should be present with the following information:
49.Bd -unfilled -offset indent
50official network name
51network number
52aliases
53.Ed
54.Pp
55Items are separated by any number of blanks and/or tab characters.
56A ``#'' indicates the beginning of a comment; characters up to the end of
57the line are not interpreted by routines which search the file.
58This file is normally created from the official network data base
59maintained at the Network Information Control Center
60.Pq Tn NIC ,
61though local
62changes may be required to bring it up to date regarding unofficial aliases
63and/or unknown networks.
64.Pp
65Network numbers may be specified in the conventional
66``.'' (dot) notation using the
67.Xr inet_network 3
68routine
69from the Internet address manipulation library,
70.Xr inet 3 .
71Network names may contain any printable character other than a field
72delimiter, newline, or comment character.
73.Sh FILES
74.Bl -tag -width /etc/networks -compact
75.It Pa /etc/networks
76The
77.Nm
78file resides in
79.Pa /etc .
80.El
81.Sh SEE ALSO
82.Xr getnetent 3
83.Sh HISTORY
84The
85.Nm
86file format appeared in
87.Bx 4.2 .
88.Sh BUGS
89A name server should be used instead of a static file.