Clustering

Yes I know that the internet is thick with documentation on how to set up passwordless ssh for OS X or UNIX But here is my documentation is a way that i understand, I hope that it helps you.

1. Configure your server with a shared hoe directory across each node.
2. At the head node of the cluster do the following
   1. ssh-keygen -b 1024 - tsa
   2. Simply select enter for all of the questions
3. This will generate the following files.
   1. ~/.ssh/id_dsa.pub
   2. ~/.ssh/id_dsa
4. copy the id_dsa.pub file to the ~/.ssh/authorized_keys file
   1. cp ~/.ssh/id_dsa.pub ~/.ssh/authorized_keys
5. test the script by attempting to log on to a cluster node of the server
6. if you are having trouble make sure that the permissions on the .ssh directory are.
   1. drwx------

and that about it, this is necceary in the administration of the cluster.