[Beowulf] Question about root login(s)

[Geoff Jacobs]

Tim Moore wrote:
> Hello All -
> 
> I just upgraded  the OS on my cluster and to satisfy security,
> implemented ssh.  The old cluster used rsh and rlogin.  I developed some
> nice scripts that allow me to do an emergency shutdown, reboot and other
> misc node maintenance with the execution of one command.  SSH
> configuration for a user is trivial because /home is distributed
> throughout the cluster.  I would like to still use my scripts (with some
> mods) to control the cluster but do not quite understand how to login as
> root (without a password) throughout the compute nodes via ssh because
> /root is present on each system.

Replicate the .ssh directory from root on the login node to root on all
the rest. Make sure permissions are retained.

> Thanks!
> Tim

-- 
Geoffrey D. Jacobs

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