Programmatically control other nodes on Linux subnet

I would like to make a grid like network with few servers running Linux. Where I have a central node which should be able to schedule/execute commands on other nodes.

The central node has cr开发者_如何学运维edentials with administrative privileges in the subnet, but I'm new to Linux, so I don't know what ?RPC? mechanisms I could use to perform the remote tasks.

Is there a tunnel, or network based command piping I could use? What keywords I should look for in Google?

If I could launch shell scripts on the remote node from the central node, I could do everything I need.

While SSH is enough for most tasks, in case you need something more controlled, you could use job distributing systems like gearman, celery or some other queues.

SSH ( http://en.wikipedia.org/wiki/Secure_Shell )