[Beowulf] passwordless "rsh" login

Andrew M.A. Cater amacater at galactic.demon.co.uk
Thu Jul 8 03:04:32 EDT 2004


On Wed, Jul 07, 2004 at 01:20:43PM -0700, sandeep krishnan wrote:
> Hi,
>  
> I have a cluster set up with redhat 8.0 in which Fluent is being used. The /home of the master is being shared by all the nodes on the cluster. For running parallel applications with Fluent it requires passwordless "rsh" login to all the nodes. As a local user (non root) I am able to login from the master to all the nodes with rsh without password. But from one node to another it keeps asking for the password. 
>  
_Don't_ use rsh :) Use ssh with key exchange and passwordless login.
There is a compatibility hack to make ssh behave exactly like rsh -
you might even get away just with linking ssh -> rsh :)

If you _have_ to use rsh - what does your rhosts file on each node say?

Andy
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