CentOS - Apr 2015 - CentOS 7 auto mounting non authenticated users

Hi,

I mentioned this issue in reply to "CentOS 7.1 user login screen can't 
scroll up/down" but heard nothing.

We authenticate using NIS and our home directories are mounted via NFS.

Once a user logs into a CentOS7 workstation their username appears in 
the login screen 'user list'. I have disabled the list but notice that 
after a reboot running mount -l shows all previously authenticated users 
home directories are being mounted over NFS again automatically.

Is this normal? I have noticed some latency issues with the NFS and 
assume it is related, can anybody verify if this is a bug or a 
configuration error?

Surely they shouldn't re-mount until the user authenticates again?

thanks in advance,

Michael

On Fri, 10 Apr 2015, Michael Horne wrote:
> Once a user logs into a CentOS7 workstation their username appears in the 
> login screen 'user list'. I have disabled the list but notice that
after a
> reboot running mount -l shows all previously authenticated users home 
> directories are being mounted over NFS again automatically.
I don't believe that this is directly related to either gdm or CentOS 7: 
we have the same problem, using kdm and CentOS 6.6. We have over 200 
systems and the problem happens on only about 10% of them, but of all of 
the machines on which it does happen, the machine is used as a workstation 
(the rest being headless compute servers). I can't see anything obvious 
that would explain the difference.

Steve

I also have some Fedora workstations that are experiencing the same 
symptoms.
I noticed that the userlist is being pulled from my NIS server (when the 
connection is down the list does not appear). but I cannot work out why 
the home directories are automatically mounting at boot.

Does anybody have any ideas what is causing the automounts? where I can 
disable this functionality? logging in as root and running umount 
/home/each.previously.logged.in.user is a little tedious!

Where should I be asking about this if it's not a specific centos issue?

surely someone has noticed this in the past and found a solution?

Michael

On 10/04/15 13:26, Steve Thompson wrote:
> On Fri, 10 Apr 2015, Michael Horne wrote:
>
>> Once a user logs into a CentOS7 workstation their username appears in
>> the login screen 'user list'. I have disabled the list but
notice that
>> after a reboot running mount -l shows all previously authenticated
>> users home directories are being mounted over NFS again automatically.
>
> I don't believe that this is directly related to either gdm or CentOS
7:
> we have the same problem, using kdm and CentOS 6.6. We have over 200
> systems and the problem happens on only about 10% of them, but of all of
> the machines on which it does happen, the machine is used as a
> workstation (the rest being headless compute servers). I can't see
> anything obvious that would explain the difference.
>
> Steve
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