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ypinit(8)

SYNOPSIS

     ypinit -m [domainname]
     ypinit -s master_server [domainname]
     ypinit -u [domainname]

DESCRIPTION

     The ypinit utility is a script which sets up databases on a Network
     Information Service (NIS) master or slave server.

     On a master server, ypinit creates the /var/yp/$DOMAINNAME directory, the
     /var/yp/ypservers file, and calls /var/yp/Makefile to create and populate
     an initial set of NIS maps.  The maps are created from local source files
     using the yp_mkdb(8) utility.  The utility will prompt the user for a
     list of servers that support the specified domain; this list is used to
     populate the ypservers map.

     On a slave server, ypinit creates the /var/yp/$DOMAINNAME, populates it
     with copies of the NIS maps from the master.  The maps are obtained from
     the master using the ypxfr(8) utility.  The ypinit utility obtains the
     list of maps to transfer in one of two ways: if the system is configured
     as an NIS client and is bound to the master server, ypinit is able to use
     the ypwhich(1) utility to obtain a list of maps exported by the master
     server.  If the system is not configured as a client of the NIS master,
     ypinit uses a hardcoded list of maps, some of which may or may not actu-
     ally exist on the master.	The system administrator can edit the ypinit
     script and modify the map list if necessary.  Otherwise, individual maps
     can be transfered manually from the master using ypxfr(8).

OPTIONS

     The ypinit utility supports the following options:

     -m [domainname]
	     Set up a master server.  By default, ypinit sets up a server for
	     the system default domain.  The user can override this default by
	     specifying domainname explicitly.	Maps are constructed from
	     scratch using local files as templates using the yp_mkdb(8) util-
	     ity.

     -s master_server [domainname]
	     Set up a slave server using master_name as the master.  Maps are
	     copied from master_server to the slave using ypxfr(8).  By
	     default, ypinit sets up a server for the system default domain.
	     The user can override this default by specifying domainname
	     explicitly.

     -u [domainname]
	     Update the ypservers map on the master server.  When a new slave
	     server is added to a domain, its hostname must be added to the
	     ypservers map so that yppush(8) can propagate updates on the mas-
	     ter to all of the slaves.

FILES

     /etc/bootparams	    Bootparams source file
     /etc/ethers	    Ethers data source file
     /var/yp/netgroup	    Netgroup data source file
     /var/yp/ypservers	    Ypservers source file (generated by ypinit)

SEE ALSO

     mknetid(8), revnetgroup(8), yp(8), yp_mkdb(8), yppush(8), ypserv(8),
     ypxfr(8)

HISTORY

     This version of ypinit is based on the ypinit script in OpenBSD.  It
     first appeared in FreeBSD 3.0.

AUTHORS

     The original script was written by Mats O Jansson <moj@stacken.kth.se>.
     It was modified for FreeBSD by Bill Paul <wpaul@ctr.columbia.edu>.

FreeBSD 5.4		       November 10, 1997		   FreeBSD 5.4

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