The first step in using NFS 3 is to set up an NFS 3 server. Choose the system that will be serving files to the rest of your LAN. On this machine, we'll need to enable NFS server support in the kernel. You should use a 2.2.18+ kernel (2.4+ recommended) to take advantage of NFS 3, which is much more stable than NFS 2. If you're compiling your own custom kernel, enter your /usr/src/linux directory and run make menuconfig. Then, select the "File systems section," then the "Network File Systems" section, and ensure that the following options are enabled:

<*> NFS file system support                    
[*]   Provide NFSv3 client support            
<*> NFS server support                       
[*]   Provide NFSv3 server support