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Is the export including the write ability for the Server-C host? &nbsp;This is the only reason you shouldn't be able to write to the particular directory.<br />
<br />
Make sure you don't have two exports with different permissions or a weird typo... if you are unsure paste the output of cat /etc/exports
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the line that i have in exports is<br />
<br />
/clients/redhat *(rw,sync)
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Okay, to move forward with this lets concentrate on why root doesn't have permissions to write a directory or file to the NFS mount.<br />
<br />
Obviously we are fine with the server as Server-B has the ability to write and delete.<br />
<br />
Server-C on the other hand has this issue. &nbsp;Do you have SELinux enabled and enforcing on Server-C? &nbsp;/usr/bin/sestatus to check if this is the case.<br />
<br />
Otherwise, you should get errors in /var/log/messages on either the client (Server-B) or the server (Server-A) can you check the logs on both after you have tried to write to the directory, try both a file and directory create.
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On server-a in messages it shows both server-b and server-c having authenticated mount requests to that folder.<br />
<br />
selinux is set to enforcing on server-c (/etc/selinux/config)<br />
i'm not sure what difference that could make since every other mount to other systems is fine<br />
<br />
server-a is RHEL 3 update 8<br />
server-b is RHEL ES 4 udpate 6<br />
server-c is RHEL AS 4 update 5<br />
<br />
i have since opened a case with red hat. &nbsp;after sending sysreports for all 3 systems and modifying the mount syntax and exports a bit, even they think it's bizarre
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You have the option of leaving the case with Redhat, after all you are paying for their support, and you can request a refund as no one else has offered you any assistance.<br />
<br />
But to continue anyway: &nbsp;If SeLinux is active it may be stopping your from writing to the NFS mount, SELinux is one of the few things that can stop root from doing stuff. &nbsp;However this should appear with a flood of information in /var/log/messages.
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Thanks for letting me know, you are right that it is a shame you will never know the true cause, but at least it is working and working successfully.<br />
<br />
Please request from EE that they close the question and refund the points.
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<div class="content wysiwyg-content">
I have a problem with an nfs mount and I'm at at wits end.<br />
<br />
Let's say I have 3 servers....Server-A Server-B Server-C<br />
<br />
On Server-A I have a folder /clients/redhat that I have in my exports<br />
On Server-B I create a folder /clients/redhat and mount to Server-A<br />
On Server-C I create a folder /clients/redhat and mount to Server-A<br />
<br />
Here is the problem:<br />
<br />
On Server-B I can go to /clients/redhat and create a directory foo either as root or regular user.then delete it.<br />
On Server-C I go to /clients/redhat and try to make a directory bar (or anything else) as root or regular user and it says permission denied.<br />
<br />
On Server-D I create an empty folder and mount it to Server-A and I can write without a problem.<br />
<br />
I have no clue as to why I can't write to that folder from Server-C.<br />
I did remove the mount and mounted it again on Server-C and still can't write to it.
</div>
</div>


I have a problem with an nfs mount and I'm at at wits end.

Let's say I have 3 servers....Server-A Server-B Server-C

On Server-A I have a folder /clients/redhat that I have in my exports
On Server-B I create a folder /clients/redhat and mount to Server-A
On Server-C I create a folder /clients/redhat and mount to Server-A

Here is the problem:

On Server-B I can go to /clients/redhat and create a directory foo either as root or regular user.then delete it.
On Server-C I go to /clients/redhat and try to make a directory bar (or anything else) as root or regular user and it says permission denied.

On Server-D I create an empty folder and mount it to Server-A and I can write without a problem.

I have no clue as to why I can't write to that folder from Server-C.
I did remove the mount and mounted it again on Server-C and still can't write to it.

problem writing to nfs mount

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