I think you should tackle these three things separately:
> root SSH to nodes from external machines isn’t working. Typing the
correct password lead to an authentication failure.
You don't say if you have stateful, statelite or stateless nodes, and if
the nodes have been installed using xCAT, or
Hello,
I'm having serious trouble setting up authentication properly on an xCAT
cluster.
The problems appearing are :
* root SSH to nodes from external machines isn't working. Typing the
correct password lead to an authentication failure.
* The "su root" command while connected as a
