I made secure RPC NFS working in linux.
It is extensively tested in my network, where I have
9 Linux boxes and 1 Solaris-2.3 Sparc station with all exports being secure.
It works like a wonder.
Really, I am not sure that there are security fans like me in the linux world,
so that I have not yet prepared patches appropriate for public distribution.
If someone REALLY needs secure RPC NFS, mail to me and
I'll find spare time to prepare these patches.
(They should be applied to kernel,mount,amd(for client), nfsd(for server),
and to Sun provided secure RPC package(for both))
Alexey Kuznetsov.
kuznet@ms2.inr.ac.ru