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Bart, I'm asking here because I am not aware of any Xen exploits
and breechs, and I am trying to do research. I can't find anything useful
on Google. I really do feel that even if I did seperate everything onto seperate
boxes, the matter still woudn't be resolved, as if one customer "broke out" of
their VM, they could steal other customer's data. Infact, I would nearly say
that would be worse than if my data was stolen, as if it were my data that was
stolen, I would only have myself to blame...
Even seperating storage woudn't really help in this matter, as
storage would still be shared among several VMs.
It gets to the stage where the only secure thing to do is to avoid
Xen altogether, and offer dedicated servers. Of course, this is not the thing
that I want to do.
There are many people on this list that offer VPS hosting services
to untrusted customers, and I'm trying to guage what measures they take (if any)
to prevent such exploits. From what I gather, no one does anything, except keep
their network secure. As someone mentioned, Amazon EC2 use Xen, and if there was
an exploit, we would have heard about it by
now...