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yppoll

return version and master server of a NIS map

yppoll [ -h host ] [ -d domain ] mapname

yppoll

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).
Specify a domain other than the default domain as returned by domainname(1).

domainname(8), ypbind(8), ypcat(8), ypmatch(1), ypserv(8), yset(8), ypwhich(1)

yppoll is part of the yp-tools package, which was written by Thorsten Kukuk <kukuk@suse.de>.