1 .\" Copyright (c) 1991, 1993, 1995
2 .\" The Regents of the University of California. All rights reserved.
4 .\" Redistribution and use in source and binary forms, with or without
5 .\" modification, are permitted provided that the following conditions
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 .\" 4. Neither the name of the University nor the names of its contributors
13 .\" may be used to endorse or promote products derived from this software
14 .\" without specific prior written permission.
16 .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
17 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 .\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
20 .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 .\" $FreeBSD: src/usr.sbin/yppush/yppush.8,v 1.18 2005/01/18 20:02:45 ru Exp $
29 .\" $DragonFly: src/usr.sbin/yppush/yppush.8,v 1.4 2006/02/17 19:40:30 swildner Exp $
36 .Nd "force propagation of updated NIS databases"
41 .Op Fl j Ar #parallel jobs
49 utility distributes updated NIS databases (or
51 from an NIS master server to NIS slave servers within an NIS
53 It is normally only run on the NIS master by
55 whenever any of the NIS maps are updated.
62 entry in the Makefile must first be commented out
65 configuration assumes a small network with only
66 a single NIS server; in such a configuration,
72 determines the names of the slave servers for a domain by searching the
75 A destination host (or a list of hosts) can also be manually
76 specified on the command line.
77 Once it has a complete list of slave servers, it sends a 'map transfer'
78 request to each slave, which in turn reads a copy of the map from
79 the master NIS server using
81 Included within each request is the name of the map to be copied
82 and some special information required by
84 to successfully 'callback' to
86 and carry out the transfer.
91 via callback will be printed to stderr.
93 The following options are available:
94 .Bl -tag -width indent
96 Specify a particular domain.
98 the local host system is used by default.
99 If the local host's domain
100 name is not set, the domain name must be specified with this flag.
102 Specify a timeout value in seconds.
106 will wait for a response from a slave server before sending a
107 map transfer request to the next slave server in its list.
108 .It Fl j Ar #parallel jobs
111 utility normally performs transfers serially, meaning that it will
112 send a map transfer request to one slave server and then wait for
113 it to respond before moving on to the next slave server.
115 with many slaves, it is more efficient to initiate several map transfers
116 at once so that the transfers can take place in parallel.
119 flag is used to specify the desired number of parallel jobs:
121 will initiate the specified number of transfers immediately and
122 listen for responses.
123 If the number of specified parallel jobs is
124 less than the number of slave servers,
126 will initiate only the number of specified jobs and then wait
127 for some of them to finish before starting any more.
131 handles callbacks asynchronously, which means that it will collect
132 and display the callback information received from
134 as soon as it arrives, even it arrives before all of the map
135 transfer requests have been sent.
137 Can be used to transfer a map to a user-specified machine or
138 group of machines instead of the list of servers contained in
142 A list of hosts can be specified by using multiple
149 expects all the local NIS maps to be stored under
153 flag can be used to specify an alternate path in the event that
154 the system administrator decides to store the NIS maps somewhere else.
156 Verbose mode: it causes
158 to print debugging messages as it runs.
159 Specifying this flag twice
165 .Bl -tag -width Pa -compact
166 .It Pa /var/yp/[domainname]/ypservers
167 the NIS ypservers map containing the names of all servers in
168 a particular NIS domain
175 .An Bill Paul Aq wpaul@ctr.columbia.edu
177 The mechanism for transferring NIS maps in NIS v1 is different
178 than that in NIS version 2.
181 has support for transferring maps to NIS v2 systems only.