I tried to install nfs using sudo apt-get install nfs-server (for the purpose of streaming audio files to a Mac running OS 10.6) and discovered that I have two packages to choose between.

Package nfs-server is a virtual package provided by:

  nfs-kernel-server 1:1.2.0-4ubuntu4.1

  unfs3 0.9.22+dfsg-2

You should explicitly select one to install.

Is there any particular reason to choose unfs3 over nfs-kernel server? Is it faster or slower? More or less stable? Does it matter at all?

Apart from the fact that I will be streaming some fairly large files (flac), I will be doing nothing out of the ordinary. It's on a closed network so there are no security concerns.