/home/ovh ip_serv_ovh(rw,sync,no_subtree_check,no_root_squash)/home/local ip_serv_local(rw,sync,no_subtree_check,no_root_squash)
/etc/init.d/nfs-kernel-server restart
mount -t nfs ip_serv_nfs:/home/local /media/test
mount.nfs: access denied by server while mounting ip_serv_nfs:/home/local