[DGD] Access

[pete at ana.sk]

> In the kernel library, objects don't have access outside their own
> /usr/Foo directory, even though user Foo may have that access.  This
> is intended to prevent security leaks such as the above; if objects
> in /usr/World have write access in /usr/System, then effectively
> objects in /usr/World can do anything at all.

But can you explain me then what is the whole access and grant 
good for? When i cant grant access for user X to dir /usr/Y, when is 
that grant used?

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