NFS denied mount request

antixsuperstar · 11-09-2009, 07:25 PM

Hi everyone,

I've been searching for answers to this issue I've been having since I last installed Debian etch (2.6.26-2-686 i686): I can't get to mount a specific nfs share.

The details on server (192.168.2.230) and client (192.168.2.239) computers

server's mounting scheme:
/dev/sda1 is mounted on /
/dev/sda4 is mounted on /home
/dev/sda6 is mounted on /var

server's /etc/exports:

Code:

/home/marc05	192.198.2.239(rw,root_squash,subtree_check)
/var/www	192.168.2.239(rw,root_squash,subtree_check)

client's /etc/fstab:

Code:

192.168.2.230:/home/marc05 /home/marc05/marc05.nfs nfs defaults,rw,user,noauto 0 0
192.168.2.230:/var/www /home/marc05/web nfs defaults,rw,auto 0 0

Now from client i do

Code:

sudo mount /home/marc05/marc05.nfs

And I get

Code:

mount.nfs: access denied by server while mounting 192.168.2.230:/home/marc05

On the server's /var/log/syslog the following appears:

Code:

mountd[2955]: refused mount request from 192.168.2.239 for /home/marc05 (/): not exported

Now, i know that there are some posts out there that say that to make this work I'd have to be sharing a real filesystem, and afaik, /home/marc05 _is_ a real filesystem. Am i wrong?
Another solution says that I'd have to share / which you know is a security risk.
And, by the way, the share above

Code:

/var/www	192.168.2.239(rw,root_squash,subtree_check)

it is mounted at startup without any trouble.

I used to mount server's /home/marc05 on my last Debian installation and everything was fine. I don't know if something changed or if I'm having security issues.
Anyway, thanks for your time. Have a great day!

evo2 · 11-09-2009, 07:53 PM

Hi,

Quote:

Originally Posted by antixsuperstar

I used to mount server's /home/marc05 on my last Debian installation and everything was fine. I don't know if something changed or if I'm having security issues.

You didn't say if it was the server or the client that was upgraded. If it was the server, try having a look in the changelog in /usr/share/doc/nfs-kernel-server, if the client have look on your client machine at the changelog for nfs-common.

HTH,

Evo2.

AlucardZero · 11-09-2009, 07:56 PM

What is the output of, on both machines,

Code:

showmount -e serveraddress

?

Does

Code:

/usr/sbin/exportfs -a

on the server fix it?

antixsuperstar · 11-20-2009, 02:35 PM

Quote:

Originally Posted by AlucardZero

What is the output of, on both machines,

Code:

showmount -e serveraddress

?

The output on the client (ubuntu 9.10) and the server (debian etch, as mentioned) is the same:

Code:

Export list for 192.168.2.230:
/var/www     192.168.2.239
/home/marc05 192.198.2.239

which is the desired setting.

Quote:

Originally Posted by AlucardZero

Does

Code:

/usr/sbin/exportfs -a

on the server fix it?

No, it causes no effect on current behavior

Thanks for your time!

antixsuperstar · 11-20-2009, 02:40 PM

Quote:

Originally Posted by evo2

You didn't say if it was the server or the client that was
upgraded.

The server was reinstalled. I'm not sure if upgraded, but it was reinstalled.

Quote:

Originally Posted by evo2

If it was the server, try having a look in the changelog in /usr/share/doc/nfs-kernel-server, if the client have look on your client machine at the changelog for nfs-common.

OK. I'll try that. Thanks!