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How to setup a cloud with a bunch of computer running Ubuntu server connected in a LAN.. is it possible to access the cloud outside the LAN through internet..?

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Well, the "cloud" is more an idea rather than some kind of strict protocol.

So, first you need to ask your self what exactly do you want. Do you want some kind of data storage, or data processing or something else.

Once you know what kind of "cloud computing" service you need you can ask how to set it up.

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i need it for data processing.. and I found the answer to my question.. this article has the information to build a cloud with two computers..!! – jaykay90 Sep 7 '11 at 14:28
@jaykay90: Good for you. BTW, you can answer your own question if you find a good solution. – Michał Šrajer Sep 7 '11 at 14:41
lol.. tried it.. seems like i've to wait for another 6 hours... – jaykay90 Sep 7 '11 at 15:09
up vote 0 down vote accepted

I found the answer to my question.. has the information to build the cloud

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What you are describing (i.e. accessing the cloud infrastructure from the Internet) is commonly called a public cloud infrastructure.

A good start would be to to visit the Openstack Project's Getting started page located here.

This should give you first hand information on the Openstack projects.

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Am not only asking about accessing.. First What i meant is to build a Cloud with some computers within a LAN and to access it outside the LAN via internet.. – jaykay90 Sep 7 '11 at 14:14

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