[Beowulf] Question about root login(s)

Steffen Persvold sp at scali.com
Wed Oct 18 16:19:53 EDT 2006


> You need to distribute the keys for root to /root/.ssh on all of the
> nodes.

Or... use /etc/ssh/shosts.equiv and host-based authentication
(HostbasedAuthentication yes in /etc/ssh/sshd_config).

http://www.snailbook.com/faq/trusted-host-howto.auto.html

Cheers,
Steffen

>
>
>
> Mike Davis
>
> 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.
>>
>> Thanks!
>> Tim
>>
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