trouble with nfs to remotely mounted Unix file systems

[buff@pravda.cc.gatech.edu (Richard Billington)]

For security reasons, nfs mounted file systems on machine a (say from machine
x) are not available on machine b. This is in nfs, and it is intentional. If
machine x wants machine b to be able to access its file system, then it should
give explicit permission to do so, and machine b should mount that file system
directly. yea, I know, it's a pain in the ass, but that's the way nfs fakes
some modicum of security. I don't know why they bother: nfs has security holes
you could fly a space shuttle through. Personally, I hope something more like
afs (andrew file sys) becomes more of a standard.