A file server for the whole file? Interesting.
Because so many people log into DA insecurely I sure wouldn't want it... but interesting.
Two problems I can think of with a command shell from inside DA...
First being that the only easy way to do it would be to either call ssh or telnet, and to do so, either would have to be running.
Perhaps telnet restricted to localhost?
Even so, see my first problem (people logging into DA insecurely, thus exposing the admin password to the world).
Jeff