Its generally a good idea to have NFS configured, unless
you're using MFS. The debian packages
nfs-kernel-server
and nfs-user-server
provide the NFS packages.
Its also a good idea to have an arp server in a mosix
network. The debian package arpd
can be used to setup an ARP
server.
Mosix works very well with diskless workstations, and the
debian package diskless
provides an easy and
convenient way to install diskless clients.
http://www.infofin.com/~gandalf/articles/diskless_debian.txt
and the README.Debian in the diskless package are a good
starting point to start setting up diskless Debian clients.