NFS URL

★http://www.asahi-net.or.jp/~aa4t-nngk/nfsv4.html#idmapdconf

http://wiki.kurokobo.com/index.php?Linux%2FRHEL6#u243a6fc

http://b.schweiz.jp/entries/13-centos6-2-nfsv4

http://linuxjm.sourceforge.jp/html/nfs-utils/man5/exports.5.html