ypmake - rebuild and distribute NIS databases
/var/yp/ypmake [ [ make-options ] map ]
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databases for any NIS maps that are out-of-date and then executes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creates and yppushes the password database (assuming it is out-of-date).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 [Toc] [Back]
When non-null, inhibits doing a yppush of the new database files.
(Default is the null string.)
PWFILE [Toc] [Back]
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:
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
Refer to ypfiles(4) and ypserv(1M) for an overview of NIS.
To create and push the hosts map only it's out-of-date:
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
cron(1M), make(1), makemdbm(1M), ypserv(1M).
The mdbm_parse script supports building a database for the shadow
passwords, but this database is not built by default. Ypmake must be
explicitly 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.
PPPPaaaaggggeeee 2222 [ Back ]