A lot of thanks to all of you for giving me so many useful options. But I have few constraints:

-> There should not be any installation( Even any perl Module) or settings that I have to do on my remote machines.

-> Now i have 20 machines but they can be 1000 also, so I need a solution which doesn't have problem with heavy loads.

-> On my Server machine I can do all the stuffs, so I need a solution which doesn't require any extra efforts on my remote nodes.