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YPPUSH(8)				 Reference Manual				YPPUSH(8)

       yppush - force propagation of changed NIS databases

       /usr/sbin/yppush  [  -d	domain ] [ -t timeout ] [ -p # parallel jobs ] [ -h host ] [ -v ]
       mapname ...

       yppush copies updated NIS databases (or maps) from the master  NIS  server  to  the  slave
       servers within a NIS domain. It is normally run only on the NIS master by /var/yp/Makefile
       after the master databases are  changed.   /var/yp/Makefile  does  not  invoke  yppush  by
       default, the NOPUSH=true line must be commented out.
       yppush  first  constructs  a  list  of  NIS slave servers by reading the NIS map ypservers
       within the domain.  A destination host (or a list of hosts with multiple -h commands)  can
       also be specified on the command line.  A "transfer map" request is sent to the NIS serger
       at each slave, along with the information needed by the transfer agent ypxfr(8)	to  call-
       back  to yppush, which may be printed the result to stderr. Messages are also printed when
       a transfer is not possible; for instance when the request message is undeliverable.

       -d domain
	      Specify a particular domain. The NIS domain of the local host  system  is  used  by
	      default. If the local host's domain name is not set, the domain name must be speci-
	      fied with this flag.

       -t timeout
	      The timeout flag is used to specify a timeout value in seconds. This  timeout  con-
	      trols how long yppush will wait for a response from a slave server before sending a
	      map transfer request to the next slave server in the list.  By default, yppush will
	      wait 90 seconds. For big maps, this is not long enough.

       -p # parallel jobs
	      yppush normally performs transfers serially, meaning that it will send a map trans-
	      fer request to one slave server and then wait for it to respond before sending  the
	      next  map  transfer  request  to	the  next slave server. In environments with many
	      slaves, it is more efficient to initiate several map transfers at once so that  the
	      transfers can take place in parallel.

       -h host
	      The host flag can be used to transfer a map to a user-specified machine or group of
	      machines instead of the list of servers contained in the ypservers map. A  list  of
	      hosts  can  be  specified  by  using multiple instances of the -h flag.  -v Verbose
	      mode: causes yppush to print debugging messages as it runs.  Note  specifying  this
	      flag twice makes yppush even more verbose.

       domainname(1), ypserv(8), ypxfr(8)

       The mechanism for transferring NIS maps in NIS v1 is different that that in NIS version 2.
       This version of yppush has support for transferring maps to NIS v2 systems only.

       Thorsten Kukuk <kukuk@suse.de>

YP Server				   August 2002					YPPUSH(8)
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