NAME
ypwhich — list which host is Network Information System server or map master
SYNOPSIS
ypwhich
ypwhich
[-d
domain]
[-V1
|
-V2]
[hostname]
ypwhich
[-d
domain]
[-t]
[-m
[mname]]
ypwhich -x
Remarks
The Network Information Service (NIS) was formerly known as Yellow Pages (yp).
Although the name has changed, the functionality of the
service remains the same.
DESCRIPTION
ypwhich
lists the host name of the Network Information System (NIS)
server that supplies NIS services to a NIS client.
It can also print the NIS server that is the master for
mname.
The
mname
can be either a
mapname
or a map
nickname.
A map
nickname
is a synonym by which a NIS map can be referenced.
If invoked without arguments,
ypwhich
prints the host name of the NIS server serving the local machine.
If
hostname
is specified, that machine is queried to determine which NIS
server it is using.
Options
ypwhich
recognizes the following command-line options and arguments:
- -d
Specify a
domain
other than the one returned by
domainname(1).
- -V1
List the server that is serving Version 1 NIS
protocol-speaking client processes.
- -V2
List the server that is serving Version 2 NIS
protocol-speaking client processes.
If neither version is specified,
ypwhich
locates the server supplying the Version 2 (current) services.
However, if no Version 2 server is found,
ypwhich
attempts to locate the server supplying the Version 1 services.
Since NIS servers and NIS clients are both backward compatible,
the user seldom needs to know which version is being used.
- -t
Inhibit the translation of a map's
nickname
to its corresponding
mapname.
For example,
ypwhich -t -m passwd
fails because there is no map named
passwd,
whereas
ypwhich -m passwd
translates to
ypwhich -m passwd.byname.
This option is useful if a
mapname
is identical to a
nickname
(which is not true of any HP map).
- -m [mname]
List the master NIS server for a map.
No
hostname
can be specified with
-m.
The
mname
can be a
mapname
or a map
nickname.
If
mname
is omitted, a complete list of available maps
and the corresponding host names of the master NIS servers is produced.
- -x
Display the table that lists the
nickname
for each NIS map.
WARNINGS
The NIS Version 1 protocol will not be available
in a future HP-UX release.
HP recommends that you use the next version of this protocol.
AUTHOR
ypwhich
was developed by Sun Microsystems, Inc.
Printable version
