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