[Beowulf] Question about root login(s)

Chris Samuel csamuel at vpac.org
Tue Oct 24 21:13:17 PDT 2006


On Thursday 19 October 2006 05:10, Tim Moore wrote:

>  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. 

Others have covered all the keying, but one thing that often catches a lot of 
people out is that if you do not capture the compute nodes host keys and then 
restore when you rebuild a node then you can get SSH hanging trying to ask 
whether or not you really trust this machine (or just plain out failing).

cheers,
Chris
-- 
 Christopher Samuel - (03)9925 4751 - VPAC Deputy Systems Manager
 Victorian Partnership for Advanced Computing http://www.vpac.org/
 Bldg 91, 110 Victoria Street, Carlton South, VIC 3053, Australia

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