ZFS, NFS and user based quotas

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http://serverfault.com – I am using a ZFS storage (FreeNAS 9.1) with NFSv3. The NFS is mounted on Debian machine, where the linux users are created (they don`t exists on FreeNAS). How do I enable standard linux user based quotas? I want to get/set quotas on Debian, FreeNAS should make the accounting. Is this even possible? Will the NFSv4 help for this? If yes how can I mount an NFSv4 share without having the same linux users on FreeNAS. Thank you (HowTos)