[Dclug] [Novalug] rsync and permissions

[Przemek Klosowski]

   Root Permission Squashing is great for hostile environments, but I
   have always decided that I was in a safe environment where I could
   trust root across the network.

Sorry to belabor the obvious but extending the root privilege in NFS
is not just a friendly environment---it's equivalent to not having any
access controls at all, because any node that claims root privileges
by saying 'trust me, I have UID 0' (e.g. a hypothetical embedded
networked weather station running its software as root, or you booting
a live Ubuntu CD, or a Windows NFS client that simply declares UID 0
because it feels like it) gets root privs on your server.  It may be
appropriate, but it's extremely permissive.