We currently use a pam access setup like that:
# cat /etc/security/access.conf
-:ALL EXCEPT admins root:ALL
Then if users need access to the node while running jobs, we can do a
prolog/epilog that adds another line to allow in the user (then remove
once the job is done)
This can become a mess
Hi Mikhail,
Passing on thoughts from a couple of colleagues at NVIDIA:
> BARs are setup by SBIOS. It looks like the mapping isn't allowing enough
> room for our big bars (the first BAR eats the bridge window, then boom). I
> defer to Mark's wisdom.
>
> [Initially it looked to me like they wer
I'm not sure how useful this may be, but these may also be suitable in
certain environments
simplest:
touch /etc/nologin
and, similarly granular to the option below you could edit:
(Ubuntu / Debian file location)
/etc/security/access.conf
Pete
I am a novice when it comes to how clusters work.
I am a novice when it comes to how clusters work. but i did find this
feature useful.
Specify Which Accounts Can Use SSH
You can explicitly allow or deny access for certain users or groups. For
example, if you have a family PC where most people have weak passwords, you
might want to allow SSH acc
John can't you do that with a feature in ssh called Deny users and specify the
user name or that wouldnt work in a cluster environment.
I must admit that I am not running this in the context of an MPI style cluster.
I am configuring nodes for interactive logins using the batch system to
alloca
John can't you do that with a feature in ssh called Deny users and specify
the user name or that wouldnt work in a cluster environment.
On Tue, Jul 23, 2013 at 12:55 PM, Hearns, John wrote:
>
>
> Over the years there have been several discussions on this list on how
> to prevent users sshing in
Over the years there have been several discussions on this list on how to
prevent users sshing into compute cluster nodes,
and so circumventing the batch system.
Reading the PBSPro manual, I just found the Mom parameter $restrict_user
Set this to true, and any (non-system) users who are not runni
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