NFS stands for Network File System.
We export a filesystem from a 'file server' to one or more clients. The clients then access this filesystem as if it were their own file system, except all the I/O goes over the network instead of an IDE or SCSI ribbon cable.
This means that the 'remote'(that which is exported) file system should be listed in each clients /etc/fstab, so they will attempt to mount(man mount) it at boot time.
See the man pages for nfs and exports for more information.
Some notes:
Squash root for the exported filesystem. This is the default anyway. Again see man exports for more info.
portmap must be installed and running on each client for best performance with nfs. If you experience delays of several minutes before the command prompt returns when you execute a remote mount command on a client, check to be sure that portmap is indeed running.
/etc/exports file currently used on master.
The proper /etc/fstab configuration to allow mounting of master:/home is already set for each client as part of the default base install. This is done by debut's bootstrap.sh script.