nfsbug, bugs

[martha () sol nstl gov (Martha Lanatte)]

The nfsbug program guessed this file handle for my system, how do I protect 
against someone using it, and how do I make use of this information?

 GUESSABLE FILE HANDLE 129.186.109.1: (7,6) ufs <0,2,907605096> <0,2,907605096>
 = < 00 00 07 06 00 00 00 01 00 0a 00 00 00 00 00 02 36 18 f4 68 00 0a 00 00 
 00 00 00 02 36 18 f4 68 >

What filesystem on my machine does this relate to?

 UID .. BUG: 129.186.109.1:<unknown>

Is this the nobody - truncate - root bug? 

I'm not too knowledgeable about NFS security, so any help would be
appreciated.:)

--
Martha Lanatte                                  martha () sol nstl gov
System Administrator               National Soil Tilth Laboratories