Here's the setup. I am running a brand new Mac Pro, installed with Mac OS 10.5 Server. There are 5 other computers in the office, all Macs, connected to a Time Machine Router via. Wireless. The server is connected via Ethernet cable. I want to do a few main things: 1) Create a shared Address Book (on the server, perhaps), where clients can see it from their workspace, view contacts, add contacts, etc. How is this done? 2) Do the same thing as the Address Book, but for iCal. 3) Access the server externally (from home). I created a dyndns name, but which ports need to be opened? How do I set the server as the .DMZ host from the Time Capsule? There isn't an option to do this! I hope someone can help me here. Thanks!