From Fedora Project Wiki

System-config-nfs backend functionality

Here is list of all functions, which should nfs backend provides

Basic

what where
start/stop service service

add nfs share

what where
set directory ???
set host(s) ???
set permissions ???

server port settings

what where
set rpc.lockd tcp port ???
set rpc.lockd udp port ???
set rpc.mountd port ???
set rpc.statd port ???
set rpc.rquotad port ???