ypmake(1M)

NAME
     ypmake - rebuild and distribute NIS databases

SYNOPSIS
     /var/yp/ypmake [ [ make-options ] map ]

DESCRIPTION
     On NIS master machines, ypmake uses the file /var/yp/mdbm_parse and the
     optional file /var/yp/local.make.script to build the network information
     service (NIS) databases.  With no arguments, ypmake creates mdbm(3B)
     databases for any NIS maps that are out-of-date and then executes
     yppush(1M) to notify slave servers that there has been a change.

     If invoked with map, ypmake updates that map only.  Typing ypmake passwd
     creates and yppushes the password database (assuming it is out-of-date).
     Likewise, ypmake hosts and ypmake networks create databases from the host
     and network files, /etc/hosts and /etc/networks, and yppush the databases
     to the slave servers.  With the -u option, ypmake always creates the map.

     cron(1M) executes ypmake at regular intervals in order to maintain
     consistency between NIS servers' databases.  Once a day, ypmake moves the
     log file /var/yp/ypmake.log to /var/yp/ypmake.log.old to keep it from
     growing too large.

     ypmake reads the file /etc/config/ypmaster.options so that users can
     specify arguments to mdbm_parse.

     DIR  The directory of the source files.  (Default is /etc.)

     DOM  Used to construct a domain other than the master's default domain.

     NOPUSH
          When non-null, inhibits doing a yppush of the new database files.
          (Default is the null string.)

     PWFILE
          full pathname of the password file used to build the passwd
          database.  (Default is /etc/passwd.)

     For instance, to change the location of the password file used by ypmake
     to /etc/passwd.yp, include:

          PWFILE=/etc/passwd.yp

     in /etc/config/ypmaster.options.  The variables can also be specified as
     arguments on the ypmake command line.

     To have local NIS maps updated by ypmake, create the file
     /var/yp/local.make.script and add rules similar to the ones in
     mdbm_parse.
     Refer to ypfiles(4) and ypserv(1M) for an overview of NIS.

EXAMPLES
     To create and push the hosts map only it's out-of-date:

          ypmake hosts

     To always create and push the hosts and passwd map:

          ypmake -u hosts passwd

     To always create but not push the aliases map:

          ypmake -u NOPUSH=1 aliases


FILES
     /var/yp/make.script
     /var/yp/local.make.script
     /var/yp/mdbm_parse
     /var/yp/ypmake.log
     /var/yp/ypmake.log.old

SEE ALSO
     cron(1M), make(1), makemdbm(1M), ypserv(1M).

NOTE
     The mdbm_parse script supports building a database for the shadow
     passwords, but this database is not built by default.  Ypmake must be
     explicitely called with a shadow map name argument.

     If support for new databases are added a line must be added to the file
     /var/ns/domains/DOMAIN/nsswitch.conf for the NIS domain in question for
     the server to allow queries to the map.