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.Dd March 12, 1996 32.Dt YP_MKDB 8 33.Os 34.Sh NAME 35.Nm yp_mkdb 36.Nd "generate the NIS databases" 37.Sh SYNOPSIS 38.Nm 39.Fl c 40.Nm 41.Fl u Ar dbname 42.Nm 43.Op Fl c 44.Op Fl b 45.Op Fl s 46.Op Fl f 47.Op Fl i Ar inputfile 48.Op Fl o Ar outputfile 49.Op Fl d Ar domainname 50.Op Fl m Ar mastername 51.Ar inputfile 52.Ar dbname 53.Sh DESCRIPTION 54The 55.Nm 56utility creates 57.Xr db 3 58style databases for use with 59.Fx Ns 's 60NIS server. 61The 62.Nm 63utility reads 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. 82The 83.Nm 84utility is usually invoked by 85.Pa /var/yp/Makefile . 86The 87.Nm 88utility can also be used to dump an NIS database file so that its 89contents can be examined. 90For security reasons, all databases that 91.Nm 92creates are readable and writable by owner only (and usually the 93owner is root). 94.Pp 95The following options are available: 96.Bl -tag -width indent 97.It Fl c 98Cause 99.Nm 100to send a YPPROC_CLEAR request to 101.Xr ypserv 8 102on the local host. 103This signal tells the server to close any open 104database descriptors and flush out its database cache. 105If used alone, 106this flag signals the server and does nothing else. 107If used as part 108of a database creation command, 109.Nm 110will send the signal only after the new database has been successfully 111created. 112.It Fl b 113Cause 114.Nm 115to add a special entry to the database with a key of 116.Em YP_INTERDOMAIN 117and an empty data field. 118If this key is present in a map, it alters the 119behavior of the 'match' procedure in 120.Xr ypserv 8 121slightly. 122If a match query fails (because the server could not find 123a record that matched the supplied key), and the 124.Em YP_INTERDOMAIN 125key exists within the queried map, 126.Xr ypserv 8 127will try to match the entry again using a DNS lookup. 128Note that this 129special behavior only applies to the 130.Em hosts 131maps. 132Using the 133.Fl b 134flag for other maps has no effect. 135.It Fl s 136This flag is used to add a special entry to the database with a key of 137.Em YP_SECURE 138and an empty data field. 139If this key is present in a map, 140.Xr ypserv 8 141will deny access to the map to any client that is not using a 142reserved port for its query. 143This is used mainly for the 144.Em master.passwd 145maps, which should be restricted to privileged access only. 146.It Fl f 147This flag is used to turn on filtering of lines in the source file 148input that start with ``+'' or ``-'' characters. 149These characters 150have special meaning for the 151.Pa group , 152.Pa passwd 153and 154.Pa master.passwd 155maps and hence should not be allowed to appear in them as the first 156character of a key or datum. 157If the 158.Fl f 159flag is used, 160.Nm 161will reject any source line that starts with a ``+'' or ``-'' 162character and issue a warning message displaying the line that 163was dropped. 164.It Fl u Ar dbname 165Dump (or 'unwind') an NIS database. 166This option can be used to 167inspect the contents of an existing NIS database. 168.It Fl i Ar inputfile 169When generating an NIS map, encode 170.Ar inputfile 171as a special entry in the database with a key of 172.Em YP_INPUT_FILE . 173.It Fl o Ar outputfile 174When generating an NIS map, encode 175.Ar outputfile 176as a special entry in the database with a key of 177.Em YP_OUTPUT_FILE . 178.It Fl d Ar domainname 179When generating an NIS map, encode 180.Ar domainname 181as a special entry in the database with a key of 182.Em YP_DOMAIN_NAME . 183.It Fl m Ar mastername 184When generating an NIS map, encode 185.Ar mastername 186as a special entry in the database with a key of 187.Em YP_MASTER_NAME . 188This entry in the database is frequently used by various NIS utilities 189to determine the name of an NIS master server for a domain. 190By default, 191.Nm 192assumes that the local host is the NIS master; the 193.Fl m 194option is used to override this default. 195.El 196.Sh FILES 197.Bl -tag -width /var/yp/Makefile -compact 198.It Pa /var/yp/Makefile 199the Makefile that calls 200.Nm 201to build the NIS databases 202.El 203.Sh SEE ALSO 204.Xr db 3 , 205.Xr ypserv 8 206.Sh AUTHORS 207.An Bill Paul Aq Mt wpaul@ctr.columbia.edu 208