MSO and multiple communities

[John Taylor]

> The authentication is done to the data grid.  The data grid then
> authenticates itself to the remote resource on which the data is
> located.  The only account needed at the remote resources is the ID
> under which the data grid runs.

I think the reason this doesn't work for us is that instead of signing on to
a single "data grid", we're allowing sign-on to one of a number of different
communities, not all of which may be universally trusted.