On Feb 6, 2013, at 5:11 AM, Reuti <re...@staff.uni-marburg.de> wrote:

>> Thanks Reuti and Jeff, you are right, users should not be allowed to ssh to 
>> all nodes, which is how our cluster was set up: users can even password-less 
>> ssh to any node. I know this is not appropriate question in OpenMPI forum, 
>> but how can we setup so that user can only ssh (with password) to nodes that 
>> are allocated to them at the time of qsub'ing? I am still new to all of this 
>> cluster thing :)
> 
> I even disallow this. Only admin staff is allowed to login to the nodes. This 
> forces also the admin to look for a tight integration of the user's software 
> into the queuing system.


+1

FWIW, that makes one-more-thing that you have to setup and maintain (because it 
doesn't happen by default -- you'd have to add some extra scripting in the ssh 
authentication stuff to enable that functionality).

-- 
Jeff Squyres
jsquy...@cisco.com
For corporate legal information go to: 
http://www.cisco.com/web/about/doing_business/legal/cri/


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