ypwhich.1 (2010 09)

ypwhich(1) ypwhich(1)

NAME

ypwhich - list which host is Network Information System server or map master

SYNOPSIS

ypwhich

ypwhich [-d domain ][-Vn

][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).

-Vn Specify the version (n)ofypbind which is to be queried. Permitted values for n

are 2 for V2 and 3 for V3. V3 is the default.

-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 .Ifmname is omitted, a complete list

of available maps and the corresponding host names of the master NIS servers is

produced.

-x Display the nickname for each NIS map.

WARNINGS

Starting with ONCplus version B.11.31.02, the NIS Version 1 protocol is no longer available.

AUTHOR

ypwhich was developed by Sun Microsystems, Inc.