ypset(1M) MISC. REFERENCE MANUAL PAGES ypset(1M)
NAME
ypset - point ypbind at a particular server
SYNOPSIS
/usr/sbin/ypset [ -d ypdomain ] [ -h host ] server
DESCRIPTION
In order to run ypset, ypbind must be initiated with the
-ypset or -ypsetme options. See ypserv(1M). ypset tells
ypbind to get YP services for the specified ypdomain from
the ypserv process running on server. If server is down, or
is not running ypserv, this is not discovered until a YP
client process tries to get a binding for the domain. At
this point, the binding set by ypset will be tested by
ypbind. If the binding is invalid, ypbind will attempt 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 a YP server host. It
also is useful for debugging YP client applications, for
instance where a YP map only exists at a single YP server
host. In cases where several hosts on the local net are
supplying YP services, 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:
% ypset host1
% ypwhich
host2
which can be confusing. This is a function of the YP
subsystem's attempt to load-balance among the available YP
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 YP server to bind to, and must be specified as a name.
This will work only if the node has a current valid binding
for the domain in question, and ypbind has been set to allow
use of ypset. In most cases, server should be specified as
an IP address. ypset tries to bind ypbind over a datagram
transport first. Datagram Transports are recommended for
higher performance. The YP library calls, ypenum(),
ypall(), ypnext(), and ypfirst() use circuit transports
regardless of the "main" transport being used. Refer to
ypfiles(4) and ypserv(1M) for an overview of the YP name
service. The following options are available:
-h host Set ypbind's binding on host, instead of locally.
host must be specified as a name.
-d ypdomain
Use ypdomain , instead of the default domain.
SEE ALSO
ypserv(1M), ypwhich(1), ypfiles(4)
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