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Subject: Re: [OMPI users] Passwordless ssh
From: Reuti (reuti_at_[hidden])
Date: 2012-01-12 06:23:13


Am 12.01.2012 um 12:17 schrieb Shaandar Nyamtulga:

> Dear Reuti
>
> Then what I should do? I am novice in ssh, OpenMPI. Can you direct me little bit further? I am quite confused.
> Thank you

$ cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys

on the file server.

-- Reuti

>
> > From: reuti_at_[hidden]
> > Date: Wed, 11 Jan 2012 12:31:07 +0100
> > To: users_at_[hidden]
> > Subject: Re: [OMPI users] Passwordless ssh
> >
> > Hi,
> >
> > Am 11.01.2012 um 05:46 schrieb Ralph Castain:
> >
> > > You might want to ask that on the Beowulf mailing lists - I suspect it has something to do with the mount procedure, but honestly have no real idea how to resolve it.
> > >
> > > On Jan 10, 2012, at 8:45 PM, Shaandar Nyamtulga wrote:
> > >
> > >> 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 do ssh to my slave nodes without the slave mpiuser's password before mounting my slaves.
> > >> But when I mount my slaves and do ssh, the slaves ask again their passwords.
> > >> Master and slaves' ssh directory and authorized_keys have permission 700, 600 respectively and
> > >> they owned only by owner mpiuser through chown.RSA has no passphrase.
> >
> > it sounds like the ~/.ssh/authorized_keys on the master isn't containing its own public key (as in a plain sever you don't need it). Hence if you mount it on the slaves, it's missing again.
> >
> > -- Reuti
> >
> >
> > >> Please help me on this matter.
> > >>
> > >> _______________________________________________
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> > >> users_at_[hidden]
> > >> http://www.open-mpi.org/mailman/listinfo.cgi/users
> > >
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> >
> >
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