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YPSET(8)                    System Manager's Manual                   YPSET(8)

       ypset - point ypbind at a particular server

       /usr/etc/yp/ypset [ -V1|-V2 ] [ -d domain ] [ -h host ] server

       ypset tells ypbind to get the Network Information Service (NIS) for the
       specified domain from the ypserv process running on server.  If  server
       is  down, or is not running ypserv, this is not discovered until an NIS
       client process tries to get a binding for the domain.  At  this  point,
       the  binding  set  by  ypset  is  tested  by ypbind.  If the binding is
       invalid, ypbind attempts to rebind for the same domain.

       ypset is useful for binding a client node which is not on  a  broadcast
       net,  or is on a broadcast net which is not running an NIS server host.
       It also is useful for debugging NIS client applications,  for  instance
       where an NIS map only exists at a single NIS server host.

       In  cases  where  several hosts on the local net are supplying NIS ser-
       vices, it is possible for ypbind to rebind to another host  even  while
       you attempt to find out if the ypset operation succeeded.  For example,
       you can type:
              example% ypset host1
              example% ypwhich

       which can be confusing.  This is a function of the NIS service  subsys-
       tem's  attempt  to  load-balance  among  the available NIS servers, and
       occurs when host1 does not respond to ypbind because it is not  running
       ypserv (or is overloaded), and host2, running ypserv, gets the binding.

       server  indicates  the NIS server to bind to, and can be specified as a
       name or an IP address.  If specified as a name, ypset attempts  to  use
       NIS  services to resolve the name to an IP address.  This works only if
       the node has a current valid binding for the domain  in  question.   In
       most cases, server should be specified as an IP address.

       Refer to ypfiles(5) and ypserv(8) for an overview of the NIS service.

       -V1    Bind server for the (old) v.1 NIS protocol.

       -V2    Bind server for the (current) v.2 NIS protocol.

              If  no  version  is  supplied,  ypset, first attempts to set the
              domain for the (current) v.2 protocol.  If this  attempt  fails,
              ypset,  then attempts to set the domain for the (old) v.1 proto-

       -hhost Set ypbind's binding on host, instead of locally.  host  can  be
              specified as a name or as an IP address.

              Use domain , instead of the default domain.

       Sorry, I couldn't send my rpc message to ypbind on host name
              The  user  is  not  root,  or  ypbind was run without one of the
              -ypset flags.  See ypserv(8)  for  explanations  of  the  -ypset

       ypwhich(1), ypfiles(5), ypserv(8)

       The  Network Information Service (NIS) was formerly known as Sun Yellow
       Pages (YP).  The functionality of the two remains the  same;  only  the
       name  has  changed.  The name Yellow Pages is a registered trademark in
       the United Kingdom of British Telecommunications plc, and  may  not  be
       used without permission.

                                23 August 1989                        YPSET(8)