NFSv4: Using Fsid=0 But *not* Exporting The Root Filesystem

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Hi,

I would like to use the NFSv4 ability to create a “root” filesystem with fsid=0, so that I don’t have to refer to the whole path of the exported filesystem when I mount it. However I do *not* want this root filesystem to be mountable by any host. Is that possible and how?

E.g Filesystem:
/exports/data1
/exports/data2
/exports/data3

/etc/exports:
/exports *(ro,no_subtree_check,fsid=0)
/exports/data1 host1(rw)
/exports/data2 host1(rw)
/exports/data3 host2(rw)

host1 and host2 can mount fileserver:/ and access any of the dataN
directories at least read-only. That is unwanted. I’d like
/exports/data1 and /exports/data2 to be exclusively accessible by host1
and /exports/data3 by host2. But I’d still like to be able to mount e.f. as fileserver:/data1 instead of fileserver:/exports/data1.

I’ve search around a lot and I have found the question several times, but no solution yet.

Cheers frank

One thought on - NFSv4: Using Fsid=0 But *not* Exporting The Root Filesystem

  • Frank Thommen wrote:

    It appears to work for me … host1 will still see data3 under the mount point – but its contents will be empty – similarly, host2 will see data1
    and data2 under the mount point, but their contents will be empty

    Or have I missed something ?

    James Pearson