Scroll to navigation

ypwhich(1) General Commands Manual ypwhich(1)


ypwhich - return name of NIS server or map master


ypwhich [ -d domain ] [ -Vn ] [ hostname ]
ypwhich [ -d domain ] [ -t ] -m [ mname ]
ypwhich -x


ypwhich returns the name of the NIS server that supplies the NIS services to a NIS client, or which is the master for a map. If invoked without arguments, it gives the NIS server for the local machine. If hostname is specified, that machine is queried to find out which NIS master it is using.


Specify a domain other than the default domain.
This option inhibits map nickname translation.
Find the master NIS server for a map. No hostname can be specified with the -m option. mname can be a mapname or nickname for a map. If mname is omitted, ypwhich will produce a list of available maps.
Display the map nickname translation table.
Version of ypbind(8), V3 is default. Use V2 for NIS clients not supporting IPv6.


map nickname translation table.


domainname(8), nicknames(5), ypbind(8), ypcat(1), ypmatch(1), yppoll(8), ypserv(8), ypset(8)


ypwhich is part of the yp-tools package, which was written by Thorsten Kukuk <>.

April 2010 YP Tools 4.2.3