HP-UX Reference (11i v2 03/08) - 1 User Commands N-Z (vol 2)

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ypwhich(1) ypwhich(1)

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 exam-

ple,

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 pro-

duced.

-x Display the table that lists the nickname for each NIS map.

AUTHOR

ypwhich was developed by Sun Microsystems, Inc.