Hello, _ABC _, you wrote: K>> I it to what: losing control over executing _AB environment> In general, on productivity and reliability they give certain warranties. A question in money. Unless I about warranties? I about control. We tell, if I accurately know that is twisted on the server, I can in addition easy services for the same cost. Or to deliver firewall for this server where the data for the filter will undertake with reliable other computer. Who gives such flexibility in a cloud? K>> I.e. in this case we worsen quality of system _AB> Well... I would tell that scenarios different happen. I imagine scenarios when the cloud is more convenient and more favourable. _AB> However, they do not concern my sphere in any way meanwhile. Here! And in my area too there are no hyperrequirements. Roughly speaking, average business (which majority) easily manages the homebrew administrator and 5-10 servers with accurately controlled configuration. The cloud it is simple promises that IF suddenly tomorrow all Bangladesh wants at you , your service does not fall. It is necessary to me?