1.\" Copyright (c) 1995, 1996 2.\" Bill Paul <wpaul@ctr.columbia.edu>. 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. All advertising materials mentioning features or use of this software 13.\" must display the following acknowledgement: 14.\" This product includes software developed by Bill Paul 15.\" 4. Neither the name of the University nor the names of its contributors 16.\" may be used to endorse or promote products derived from this software 17.\" without specific prior written permission. 18.\" 19.\" THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 20.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22.\" ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR CONTRIBUTORS BE LIABLE 23.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29.\" SUCH DAMAGE. 30.\" 31.\" $FreeBSD$ 32.\" 33.Dd March 12, 1996 34.Dt YP_MKDB 8 35.Os 36.Sh NAME 37.Nm yp_mkdb 38.Nd "generate the NIS databases" 39.Sh SYNOPSIS 40.Nm 41.Fl c 42.Nm 43.Fl u Ar dbname 44.Nm 45.Op Fl c 46.Op Fl b 47.Op Fl s 48.Op Fl f 49.Op Fl i Ar inputfile 50.Op Fl o Ar outputfile 51.Op Fl d Ar domainname 52.Op Fl m Ar mastername 53.Ar inputfile 54.Ar dbname 55.Sh DESCRIPTION 56.Nm Yp_mkdb 57creates 58.Xr db 3 59style databases for use with 60.Fx Ns 's 61NIS server. 62.Nm Yp_mkdb 63reads data from 64.Ar inputfile , 65and writes it to 66.Ar dbname 67in 68.Xr db 3 69format (using the hash table method). 70The input should be in 'key data' format, which is to say 71two fields of 72.Tn ASCII 73data separated by white space. 74The first field 75is assumed to be the key, and everything else is assumed to be 76the data. 77These databases are typically stored in 78.Pa /var/yp/[domainname] 79where 80.Ar domainname 81is the name of the NIS domain being served. 82.Nm Yp_mkdb 83is usually invoked by 84.Pa /var/yp/Makefile . 85.Nm Yp_mkdb 86can also be used to dump an NIS database file so that its 87contents can be examined. 88For security reasons, all databases that 89.Nm 90creates are readable and writable by owner only (and usually the 91owner is root). 92.Pp 93The following options are available: 94.Bl -tag -width indent 95.It Fl c 96Cause 97.Nm 98to send a YPPROC_CLEAR request to 99.Xr ypserv 8 100on the local host. 101This signal tells the server to close any open 102database descriptors and flush out its database cache. 103If used alone, 104this flag signals the server and does nothing else. 105If used as part 106of a database creation command, 107.Nm 108will send the signal only after the new database has been successfully 109created. 110.It Fl b 111Cause 112.Nm 113to add a special entry to the database with a key of 114.Em YP_INTERDOMAIN 115and an empty data field. 116If this key is present in a map, it alters the 117behavior of the 'match' procedure in 118.Xr ypserv 8 119slightly. 120If a match query fails (because the server couldn't find 121a record that matched the supplied key), and the 122.Em YP_INTERDOMAIN 123key exists within the queried map, 124.Xr ypserv 8 125will try to match the entry again using a DNS lookup. 126Note that this 127special behavior only applies to the 128.Em hosts 129maps. 130Using the 131.Fl b 132flag for other maps has no effect. 133.It Fl s 134This flag is used to add a special entry to the database with a key of 135.Em YP_SECURE 136and an empty data field. 137If this key is present in a map, 138.Xr ypserv 8 139will deny access to the map to any client that is not using a 140reserved port for its query. 141This is used mainly for the 142.Em master.passwd 143maps, which should be restricted to privileged access only. 144.It Fl f 145This flag is used to turn on filtering of lines in the source file 146input that start with ``+'' or ``-'' characters. 147These characters 148have special meaning for the 149.Pa group , 150.Pa passwd 151and 152.Pa master.passwd 153maps and hence should not be allowed to appear in them as the first 154character of a key or datum. 155If the 156.Fl f 157flag is used, 158.Nm 159will reject any source line that starts with a ``+'' or ``-'' 160character and issue a warning message displaying the line that 161was dropped. 162.It Fl u Ar dbname 163Dump (or 'unwind') an NIS database. 164This option can be used to 165inspect the contents of an existing NIS database. 166.It Fl i Ar inputfile 167When generating an NIS map, encode 168.Ar inputfile 169as a special entry in the database with a key of 170.Em YP_INPUT_FILE . 171.It Fl o Ar outputfile 172When generating an NIS map, encode 173.Ar outputfile 174as a special entry in the database with a key of 175.Em YP_OUTPUT_FILE . 176.It Fl d Ar domainname 177When generating an NIS map, encode 178.Ar domainname 179as a special entry in the database with a key of 180.Em YP_DOMAIN_NAME . 181.It Fl m Ar mastername 182When generating an NIS map, encode 183.Ar mastername 184as a special entry in the database with a key of 185.Em YP_MASTER_NAME . 186This entry in the database is frequently used by various NIS utilities 187to determine the name of an NIS master server for a domain. 188By default, 189.Nm 190assumes that the local host is the NIS master; the 191.Fl m 192option is used to override this default. 193.Sh FILES 194.Bl -tag -width /var/yp/Makefile -compact 195.It Pa /var/yp/Makefile 196the Makefile that calls 197.Nm 198to build the NIS databases 199.Sh SEE ALSO 200.Xr db 3 , 201.Xr ypserv 8 202.Sh AUTHORS 203.An Bill Paul Aq wpaul@ctr.columbia.edu 204