Ask you, to build a streaming media server for viewing video on iphone used. How to build a server?

Want to know what kind of video format support on the iphone,
What needs to streaming media plug-ins?
I tried it directly on the site Youku point to watch the video you can see on the iphone. But Youku get the wap version of the site. I want to know what video format it there through what software to build a streaming media server.
Reply:
on win2003 installed over no problem with DarwinStreamingSrvr