36 Securing NFS in AIX
Volume 2, SC23-4889, and the /etc/exports file description in AIX 5L Version
5.3 Files Reference, SC23-4895.
Here are some differences between NFS V2, NFS V3, and NFS V4 in how
mounts are handled. In NFS V2 and NFS V3, the server exported the directories
that it wanted to make available for mounting. The NFS V2 or NFS V3 client then
had to explicitly mount each export to which it wanted access.
With NFS V4, the server still specifies export controls for each server directory or
file system to be exported for NFS access. From these export controls, the server
renders a single directory tree of all the exported directories. This tree, a
pseudo-file system, starts at the NFS V4 server’s pseudo-root. The NFS V4
pseudo-file ...