aolserver nsd is multithreaded, it only runs one process. What you see
(under linux 'ps' I am assuming) is multiple threads, for some reason they get printed out one per line as if they were separate processes (apparently threads and processes are two flavors of the same basic
object in Linux). It's not like apache which actually spawns n listener processes that wait around.
The threads are very lightweight, they all share the same resources for the most part.
