OK, I'm back.

Just finished two more testing using the same machines as before.

First test, cut away the ssh activation step from both machines and then test the NFS connection.
Result: POSITIVE.
Conclusion: SSH is not required.

Second test, cut away the /etc/hosts.deny and /etc/hosts.allow steps on both machines and then test the NFS connection.
Result: POSITIVE
Conclusion: /etc/hosts.deny and /etc/hosts.allow steps are not required.

Base on the second test setting, I re-test three more directories in the system /ramdisk, /UNIONFS and /KNOPPIX.

Out from the 3 directories, only /KNOPPIX is able to be mounted via NFS. Both /ramdisk and /UNIONFS failed.

Work-around

From the server machine, I created two symbolic links inside my newly created sharing directory /testroot and point them to /ramdisk and /UNIONFS.

Then I am able to access the /ramdisk and /UNIONFS via my client NFS mount point to the /testroot directory.

I have updated the Wifi FAQ. You can find more detail on it.

http://www.knoppix.net/wiki/Network_FAQ

Rgds,
Chip