How long before....
There is a list of IP addresses that the OS uses to 'phone home and tell MS what arseoles they are' so we can block them.
I wouldn't put it past MS to bypass the hosts file though so would have to block them elsewhere on the network.
I have the Server preview ISO. I'll use it to create a VM but it will run with no network connectivity simply because our security people have not cleared it yet. Nor will they until it is released. I'll even have to go into the DMZ to download any fixes. We really have no idea what else MS is hoovering up and passing to the 'Mothership'. IMHO we should all effect come form of 'Communication Breakdown' between us and the 'Black Dog' (MS) otherwise this OS can go to 'Kashmir' for all I care.