Distributed Objects access control

Question

When vending a distributed object, I may want the object to be accessible:
(1) on the internet
(2) only on the local network
(3) only on the same machine
(4) only to the same user on the same machine
(5) only to other threads in the same process
Apple's documentation suggests that Cocoa's Distributed Objects are a good choice for any one of these scenarios, but offers no clear explanation of how to specify which of those behaviors is desired. Any pointers?

Answer 1

Look at the documentation for Configuring a Connection. Use a plain NSPort for local-only communication. Use an NSSocketPort for network communication. A couple of pages after that section, there is another one on "Authenticating Connections".
There isn't anything about Distributed Objects that differentiates any of the different possibilities. You can use your port type to differentiate local vs network and then you will have to write your own authentication scheme for the other possibilities.