Re: NFSv4 - Linux server, FreeBSD client

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On Sat, Jan 21, 2012 at 06:04:17PM +0100, J. von Balzac wrote:
> Hello,
> 
> Linux (kernel 3.2) /etc/exports contains the following:
> 
> /exp  -ro,fsid=0,async,subtree_check,all_squash,crossmnt 192.168.1.0/24
> /exp/freebsd  -ro,no_acl,async,subtree_check,all_squash 192.168.1.0/24
> /exp/freebsd/extra -rw,no_acl,async,subtree_check,no_root_squash 192.168.1.0/24
> /exp/freebsd/ports  -rw,no_acl,async,subtree_check,no_root_squash 192.168.1.0/24

Note no_acl is actually meaningless, and async and subtree_check are
generally not recommended.

Also, "fsid=0" tricks aren't necessary any more: if you just leave out
that line, then v4 clients will be able to mount /exp/freebsd/* just as
v2/v3 clients would.

> I have also tested it without no_acl, and with the alternative
> 192.168.1.0/24(options).
> 
> The used mount command on FreeBSD and the resulting error:
> 
> # mount_nfs -o nfsv4 192.168.1.3:/freebsd/ports /usr/ports
> mount_nfs: /usr/ports, : Operation not permitted
> 
> I am emailing this list and not FreeBSD, because of this next output
> from tcpdump. Note that 192.168.1.3 is the server and 192.168.1.10 is
> the client:
> 
> 17:00:21.761418 IP (tos 0x0, ttl 64, id 62972, offset 0, flags [DF],
> proto TCP (6), length 116)
>     192.168.1.3.2049 > 192.168.1.10.1382070341: reply ok 60 getattr
> ERROR: Operation not permitted

Huh--does tcpdump even know how to parse NFSv4, or is that actually an
NFSv3 call?

The tcpdump output isn't very informative--wireshark is usually more
helpful.

What version of nfs-utils are you using?

--b.

> 
> The entire output of the tcpdump can be found at the following url:
> http://sprunge.us/OVbQ
> 
> Looking forward to resolving this.
> Jan.
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