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.\" Copyright (c) 1995, 1996
.\" Bill Paul <wpaul@ctr.columbia.edu>. 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.
.\" 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. All advertising materials mentioning features or use of this software
.\" must display the following acknowledgement:
.\" This product includes software developed by Bill Paul
.\" 4. Neither the name of the University nor the names of its contributors
.\" may be used to endorse or promote products derived from this software
.\" without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``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 Bill Paul OR CONTRIBUTORS 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.
.\"
.\" $Id: yp_mkdb.8,v 1.1 1996/03/13 16:28:19 wpaul Exp wpaul $
.\"
.Dd March 12, 1996
.Dt YP_MKDB 8
.Os
.Sh NAME
.Nm yp_mkdb
.Nd "generate the NIS databases"
.Sh SYNOPSIS
.Nm yp_mkdb
.Fl c
.Nm yp_mkdb
.Fl u Ar dbname
.Nm yp_mkdb
.Op Fl c
.Op Fl i Ar inputfile
.Op Fl o Ar outputfile
.Op Fl m Ar mastername
.Ar inputfile
.Ar dbname
.Sh DESCRIPTION
.Nm yp_mkdb
creates
.Xr db 3
style databases for use with FreeBSD's NIS server.
.Nm yp_mkdb
reads data from
.Nm inputfile ,
and writes it to
.Nm dbname
in
.Xr db 3
format (using the hash table method).
The input should be in 'key data' format, which is to say
two fields of ASCII data separated by white space. The first field
is assumed to be the key, and everything else is assumed to be
the data.
These databases are typically stored in
.Nm /var/yp/[domainname]
where
.Nm domainname
is the name of the NIS domain being served.
.Nm yp_mkdb
is usually invoked by
.Nm /var/yp/Makefile.
.Nm yp_mkdb
can also be used to dump an NIS database file so that its
contents can be examined. For security reasons, all databases that
.Nm yp_mkdb
creates are readable and writable by owner only (and usually the
owner is root).
.Sh OPTIONS
The
.Nm yp_mkdb
command supports the following flags and options:
.Bl -tag -width flag
.It Fl c
Causes
.Nm yp_mkdb
to send a YPPROC_CLEAR request to
.Xr ypserv 8
on the local host. This signal tells the server to close any open
database descriptors and flush out its database cache. If used alone,
this flag signals the server and does nothing else. If used as part
of a database creation command,
.Nm yp_mkdb
will send the signal only after the new database has been successfully
created.
.It Fl u Ar dbname
.Pp
Dump (or 'unwind') an NIS database. This option can be used to
inspect the contents of an existing NIS database.
.It Op Fl i Ar inputfile
.Pp
When generating an NIS map, encode
.Nm inputfile
as a special entry in the database with called
.Nm YP_INPUT_FILE.
.Pp
.It Op Fl o Ar outputfile
.Pp
When generating an NIS map, encode
.Nm outputfile
as a special entry in the database with called
.Nm YP_OUTPUT_FILE .
.Pp
.It Op Fl m Ar mastername
.Pp
When generating an NIS map encode
.Nm mastername
as a special entry in the database with called
.Nm YP_MASTER_NAME .
This entry in the database is frequently used by various NIS utilities
to determine the name of an NIS master server for a domain. By default,
.Nm yp_mkdb
assumes that the local host is the NIS master; the
.Ar m
option is used to override this default.
.Sh FILES
.Bl -tag -width Pa -compact
.It Pa /var/yp/Makefile
The Makefile that calls
.Nm yp_mkdb
to build the NIS databases.
.Sh SEE ALSO
.Xr ypserv 8 ,
.Xr db 3
.Sh AUTHOR
Bill Paul <wpaul@ctr.columbia.edu>
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