Provided by: yp-tools_3.3-5.1ubuntu1_amd64
yppoll - return version and master server of a NIS map
yppoll [ -h host ] [ -d domain ] mapname
yppoll queries ypserv(8) which host the NIS master server for a named map is and what the order number of this map is.
-h host Ask the NIS server process running on host for information about mapname. If host is not specified, the server polled is the default server returned by ypwhich(1). -d domain Specify a domain other than the default domain as returned by domainname(8).
yppoll is part of the yp-tools package, which was written by Thorsten Kukuk <kukuk@linux- nis.org>.