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172 lines
5.4 KiB
Groff
172 lines
5.4 KiB
Groff
.\" Copyright (c) 1995, 1996
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.\" Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by Bill Paul
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $Id: yp_mkdb.8,v 1.7 1997/10/27 12:29:24 charnier Exp $
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.\"
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.Dd March 12, 1996
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.Dt YP_MKDB 8
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.Os
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.Sh NAME
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.Nm yp_mkdb
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.Nd "generate the NIS databases"
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.Sh SYNOPSIS
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.Nm yp_mkdb
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.Fl c
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.Nm yp_mkdb
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.Fl u Ar dbname
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.Nm yp_mkdb
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.Op Fl c
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.Op Fl b
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.Op Fl s
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.Op Fl i Ar inputfile
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.Op Fl o Ar outputfile
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.Op Fl d Ar domainname
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.Op Fl m Ar mastername
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.Ar inputfile
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.Ar dbname
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.Sh DESCRIPTION
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.Nm Yp_mkdb
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creates
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.Xr db 3
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style databases for use with FreeBSD's NIS server.
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.Nm Yp_mkdb
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reads data from
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.Ar inputfile ,
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and writes it to
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.Ar dbname
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in
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.Xr db 3
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format (using the hash table method).
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The input should be in 'key data' format, which is to say
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two fields of
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.Tn ASCII
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data separated by white space. The first field
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is assumed to be the key, and everything else is assumed to be
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the data.
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These databases are typically stored in
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.Pa /var/yp/[domainname]
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where
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.Ar domainname
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is the name of the NIS domain being served.
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.Nm Yp_mkdb
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is usually invoked by
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.Pa /var/yp/Makefile .
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.Nm Yp_mkdb
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can also be used to dump an NIS database file so that its
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contents can be examined. For security reasons, all databases that
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.Nm
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creates are readable and writable by owner only (and usually the
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owner is root).
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.Sh OPTIONS
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The
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.Nm
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command supports the following flags and options:
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.Bl -tag -width indent
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.It Fl c
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Cause
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.Nm
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to send a YPPROC_CLEAR request to
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.Xr ypserv 8
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on the local host. This signal tells the server to close any open
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database descriptors and flush out its database cache. If used alone,
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this flag signals the server and does nothing else. If used as part
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of a database creation command,
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.Nm
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will send the signal only after the new database has been successfully
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created.
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.It Fl b
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This flag causes
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.Nm
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to add a special entry to the database with a key of
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.Em YP_INTERDOMAIN
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and an empty data field. If this key is present in a map, it alters the
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behavior of the 'match' procedure in
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.Xr ypserv 8
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slightly. If a match query fails (because the server couldn't find
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a record that matched the supplied key), and the
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.Em YP_INTERDOMAIN
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key exists within the queried map,
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.Xr ypserv 8
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will try to match the entry again using a DNS lookup. Note that this
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special behavior only applies to the
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.Em hosts
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maps. Using the
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.Fl b
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flag for other maps has no effect.
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.It Fl s
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This flag is used to add a special entry to the database with a key of
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.Em YP_SECURE
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and an empty data field. If this key is present in a map,
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.Xr ypserv 8
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will deny access to the map to any client that is not using a
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reserved port for its query. This is used mainly for the
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.Em master.passwd
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maps, which should be restricted to privileged access only.
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.It Fl u Ar dbname
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Dump (or 'unwind') an NIS database. This option can be used to
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inspect the contents of an existing NIS database.
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.It Fl i Ar inputfile
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When generating an NIS map, encode
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.Ar inputfile
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as a special entry in the database with a key of
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.Em YP_INPUT_FILE .
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.It Fl o Ar outputfile
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When generating an NIS map, encode
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.Ar outputfile
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as a special entry in the database with a key of
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.Em YP_OUTPUT_FILE .
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.It Fl d Ar domainname
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When generating an NIS map, encode
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.Ar domainname
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as a special entry in the database with a key of
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.Em YP_DOMAIN_NAME .
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.It Fl m Ar mastername
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When generating an NIS map, encode
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.Ar mastername
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as a special entry in the database with a key of
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.Em YP_MASTER_NAME .
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This entry in the database is frequently used by various NIS utilities
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to determine the name of an NIS master server for a domain. By default,
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.Nm
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assumes that the local host is the NIS master; the
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.Fl m
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option is used to override this default.
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.Sh FILES
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.Bl -tag -width /var/yp/Makefile -compact
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.It Pa /var/yp/Makefile
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the Makefile that calls
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.Nm
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to build the NIS databases
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.Sh SEE ALSO
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.Xr db 3 ,
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.Xr ypserv 8
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.Sh AUTHORS
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.An Bill Paul Aq wpaul@ctr.columbia.edu
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