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Subject: Re: [OMPI users] Passwordless ssh
From: jody (jody.xha_at_[hidden])
Date: 2011-12-21 02:18:39


Hi

You also must make sure that all slaves can
connect via ssh to each other and to the master
node without ssh.

Jody

On Wed, Dec 21, 2011 at 3:57 AM, Shaandar Nyamtulga <nyam100_at_[hidden]> wrote:
> Can you clarify your answer please.
> I have one master node and other slave nodes. I created rsa key on my master
> node and copied it to all slaves.
> /home/mpiuser directory of all nodes are shared through NFS.The strange
> thing is why it requires password after I mount a slave and do ssh to the
> slave.
> When I dismount I can ssh without password.
>
>
> ________________________________
> Date: Tue, 20 Dec 2011 10:45:12 +0100
> From: mathieu.westphal_at_[hidden]
> To: users_at_[hidden]
> Subject: Re: [OMPI users] Passwordless ssh
>
>
> Hello
>
> You have to copy nodeX public key at the end of nodeY authorizedkeys.
>
>
> Mathieu
> Le 20/12/2011 05:03, Shaandar Nyamtulga a écrit :
>
> Hi
> I built Beuwolf cluster using OpenMPI reading the following link.
> http://techtinkering.com/2009/12/02/setting-up-a-beowulf-cluster-using-open-mpi-on-linux/
> I can access my nodes without password before mounting my slaves.
> But when I mount my slaves and run a program, it asks again passwords.
>
> $ eval `ssh-agent`
>
> $ ssh-add ~/.ssh/id_dsa
>
> The above is not working. Terminal gives the reply "Could not open a
> connection to your authentication agent."
>
> Help is needed urgently.
>
> Thank you
>
>
>
>
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