``nim''? I'm not familiar with that one. Try:
That'll show all the network related information and the PID and program name that's associated with it. Then you can investigate what the program corresponding to the ``nim'' entry is all about. Try something like:
rpm -qf ``nim-binary''
where ``nim-binary'' is the full path to the nim program (/usr/bin/nim, or whatever)
Hope this helps,