Re: NFS Client: Backup preparation problem[solved]

[Amit Karpe <amitkarpe@xxxxxxxxx>]

On Fri, Mar 1, 2013 at 10:46 AM, Amit Karpe <amitkarpe@xxxxxxxxx> wrote:

On Fri, Mar 1, 2013 at 2:35 AM, Michael E. Maher <michael@xxxxxxxxxxxxxxxxx> wrote:

Hi Amit,

On Thu, 2013-02-28 at 17:39 +0800, Amit Karpe wrote:
>
> If I used no_root_squash in /etc/exports on server I can access
> directory without problem.
> /disk12   172.21.123.219(rw,sync,no_root_squash)
>
> What can be the problem ?
>

You have kind of answered your own question here. If you need root
access to the files from the client, you will need the 'no_root_squash'.
All that option does is honour your clients root user over the NFS share
(not great for security but I don't know your set up details).

Other than that you'd have to manage the users on both systems, to be
the same name/uid/gid etc.. and do everything as a non-root user (better
for security).

Take a look at this link[0] and hopefully that should clear it all up.


Thanks,
Michael


[0]http://www.troubleshooters.com/linux/nfs.htm#_If_it_mounts_but_cant_access

Michael,

In following situation if I access as root or non-root, I am facing same "Permission denied" error.

So the problem is just not with root but all users.

client# ls -l /borneo4

ls: cannot access /borneo4/test-dir: Permission denied

?????????? ? ? ? ?                ? test-dir

client# su - eos

client$ ls -lh /borneo4/

ls: cannot access /borneo4/test-dir: Permission denied

total 0

?????????? ? ? ? ?                ? test-dir

And on server side I am ready change file permissions. By changing ownership of directory will solve this problem without using no_root_squash ? 

Finally I solved this problem by just changing permission on server directory.

server# chmod o+x  /borneo4

Now my client can access without any problem.

Thank You, Michael.

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