YPXFR(8)						    BSD System Manager's Manual 						  YPXFR(8)

NAME

     ypxfr -- get a YP map from YP server

SYNOPSIS

     ypxfr [-bcf] [-d domain] [-h host] [-s domain] [-C tid prog ipadd port] mapname

DESCRIPTION

     ypxfr is the utiliy in YP that transfers maps to the local host.

     Since the YP master transfers a map when it has changed, an YP slave should check for missed maps regulary. This can be done via an entry in
     crontab(5).  The scripts ypxfr_1perhour, ypxfr_2perday and ypxfr_1perday could be used for that.

     The options are as follows:

     -b      Preserve the entry in the database informing a YP server to use DNS to get information about unknown hosts. This option will only
	     have effect on the two maps hosts.byname and hosts.byaddr.

     -c      Don't send a "Clear current map" to local ypserv process. Useful if ypserv isn't running localy to avoid timeout message.

     -f      Force map transfer, even if version of master is older than local copy.

     -d domain
	     Don't use default domain, use the specifiyed domain.

     -h host
	     Get map from host insteed of the maps master host.

     -s domain
	     Specify a source domain other than the target domain.

     -C tid prog ipadd port
	     This option is only used by ypserv. This is to open communication with an yppush on another host.

FILES

     /usr/sbin/ypxfr_1perhour
     /usr/sbin/ypxfr_2perday
     /usr/sbin/ypxfr_1perday

SEE ALSO

     yp(8), yppush(8), ypserv(8)

AUTHOR

     Mats O Jansson <moj@stacken.kth.se>

BSD
								  August 18, 1994							       BSD