On Jul 19, 2011 6:48 PM, "Jay Leafey" <jay.leafey@mindless.com> wrote:
>
> I usually use SSH keys in conjunction with ClusterSSH (http://clusterssh.sourceforge.net), I have been using the 3.27 version with good results.  It makes managing batches of servers a bit easier, allowing the execution of the same command across multiple systems at the same time.

In the same vein, I instead recomend pdsh.  It has a few quirks which increases the learning curve, but it works very, very well, assuming that's the level of control you want/need.