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ypmake(8)							    ypmake(8)


  ypmake - rebuild Network Information Service (NIS) database using the	make


  cd /var/yp make [options] [map]


  The options argument can be used to override the default values of three
  special variables used by make:

  DIR Instructs	make to	use the	source files in	the specified directory. The
      default is /var/yp/src.

  DOM Instructs	make to	construct a domain other than the master's default
      domain. The DOM variable in the /var/yp/Makefile file must be set	to
      the domain name before running make. If you run ypsetup, the DOM vari-
      able is set when you specify a domain name.

      Specifies	the database routines used to store NIS	maps.  The choices

      b	  btree	-- Recommended when creating and maintaining very large	maps.

      d	  dbm/ndbm -- For backward compatibility.  This	is the default.

      h	  hash -- A potentially	quicker	method for managing small maps.

      When non-null inhibits updating of the new database files	using the
      yppush(8)	function. The default is the null string.

  To override the default values of these special variables, an	options	argu-
  ment format of special_variable = value is used.  See	the EXAMPLES section
  for an example.

  The map argument supplied on the command line	instructs make to update only
  the specified	map. The specified maps	are those located at
  /var/yp/{domain}, where {domain} is the NIS domain name. Some	typical
  entries for the map argument are passwd, hosts, and networks.	 Typing	make
  passwd creates and updates the NIS password database,	if it is out of	date.
  The make command distributes the updated password database to	the slave
  servers using	yppush(8). Therefore, typing make host or make networks
  creates and updates the host and network files, /var/yp/src/hosts and
  /var/yp/src/networks,	respectively, on the master and	slave servers.

  See ypfiles(4) and ypserv(8) for an overview of NIS.


  The make command uses	the /var/yp/Makefile file to build an NIS database.
  With no arguments, make creates databases for	any NIS	maps that are out-
  of-date, and then executes yppush(8) to notify slave servers that there has
  been a change.


       Execute the make	command	only at	an NIS master server machine.  If it
       is executed from	either a slave server or an NIS	client machine,	the
       created changes will only be overwritten	when the next NIS master
       server machine update, using ypxfr(8), is performed.


  You must use the same	database format	for each map in	a domain. In addi-
  tion,	a server serving multiple NIS domains must use the same	database for-
  mat for all domains.

  Although a Tru64 UNIX	NIS server that	takes advantage	of btree files will
  be able to store very	large maps, NIS	slave servers that lack	this feature
  might	have a much smaller limit on the number	of map entries they can	han-
  dle.	It may not be possible to distribute very large	maps from a Tru64
  UNIX NIS master server to a slave server that	lacks support for very large
  maps.	 NIS clients are not affected by these enhancements.


  This example causes make to create a password	NIS map	for the	domain
  NewDomain instead of for the default domain:

       make DOM=NewDomain passwd


  Commands: make(1), makedbm(8), yppush(8), ypserv(8), ypxfr(8)

  Files: ypfiles(4)