How to make an account across different nodes in a cluster

muneebs123 · 08-10-2004, 03:48 AM

Hi
I am trying to make an account with the same userid and the same group id across different nodes on the cluster. How can i make them using a script or shell command so that i dont have to manually make them. remember that i have no passwordless ssh or rsh for the root

bastard23 · 08-11-2004, 01:37 AM

How do you get root now? I would use pulic key authentication for ssh. http://mah.everybody.org/docs/ssh seems to be a good howto.
Then:

ssh-add; for h in host1 host2 host3; do ssh root@$h useradd -u 900 -g 900 username; done

Or, you could get the machines to use LDAP for user authentication/management.

Good Luck,
chris

damien · 08-26-2004, 04:39 PM

Is this so you can do things across the nodes simultaneously, like run an MPI program? On my cluster I NFS export /home/damien from the head node and mount it as /home/damien on the slave nodes. Then the ssh authorized_keys file is automatically available as well and you're off to the races.

Damien