Comparison of NIS and NIS+
To help you understand the differences between NIS and NIS+, Table 22 compares the features of the two programs.
| Capability | NIS Features | NIS+ Features |
|---|---|---|
| Namespace | Flat. | Hierarchical. |
| Database | Centralized for each independent network domain. | Partitioned into directories to support each network subset or autonomous domain. |
| Data storage | Multiple bicolumn maps with key-value pairs. | Multicolumn tables with multiple searchable columns. |
| Replication | Minimum of one replica server per IP subnetwork. | Each replica server can serve clients on multiple IP subnets. |
| Update privileges | Requires superuser privileges on the master server. | Performed remotely by authorized administrators; no superuser ... |
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