How NIS+ works
NIS+!theory of operationNIS+ is a new version of the network information nameservice from Sun.
The biggest difference between NIS and NIS+ is that NIS+ has
support for data encryption and authentication over secure RPC.The naming model of NIS+ is based upon a tree structure. Each node in
the tree corresponds to an NIS+ object, from which we have six types:
directory, entry, group, link, table and private.The NIS+ directory that forms the root of the NIS+ namespace is called
the root directory. There are two special NIS+ directories:
org_dir and groups_dir. The org_dir directory consists of all
administration tables, such as passwd, hosts, and mail_aliases. The
groups_dir directory consists of NIS+ group objects which are used for
access control. The collection of org_dir, groups_dir and their parent
directory is referred to as an NIS+ domain.