+.P
+Note that if the NFS server is already running, then the options for
+specifying host, port, and protocol will be ignored. The number of
+processes given will be the only option considered, and the number of
+active
+.B nfsd
+processes will be increased or decreased to match this number.
+In particular
+.B rpc.nfsd 0
+will stop all threads and thus close any open connections.
+