Re: Some NFS server V4 questions

From: Russell L. Carter <rcarter_at_pinyon.org>
Date: Sat, 25 Oct 2014 13:30:02 -0700
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On 10/25/14 09:58, Beeblebrox wrote:
> Hi Russ,
> 
>>> PXE client's /etc/fstab is: 92.168.2.1:/data/amd64 /       nfs
>>> ro 0       0 192.168.2.1:/usr/local /usr/local nfs   ro      0
>> 
>> Possibly need to arrange for mount_nfs to see -o nfsv4 (I use 
>> mount_nfs -o nfsv4,minorversion=1)
> Yeah, that would work very likely and thanks.
> 
> From a purist standpoint, what would be settings on server side to 
> force NFSV4 offering only? This means, how can I configure NFS so 
> that V2/V3 requests get denied AND logged for debug?
> 

I have vfs.nfsd.server_min_nfsvers=4 set on the server, and
when I mount_nfs -o nfsv3 on the client, the error the client
sees is

[tcp] terp:/packages: NFSPROC_NULL: RPC: Program/version mismatch; low
version = 4, high version = 4

Have to ^C to exit.

Nothing shows up in the server's log, but because of sloth I haven't
tried to make anything show up.  Maybe there's an option.

Best,
Russell

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Received on Sat Oct 25 2014 - 18:30:06 UTC

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