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Network Information Service (NIS)
NIS is a network-based information service and an administrative tool. It allows centralized database administration and a distributed lookup service. NIS supports multiple databases based on regular text files. For example, NIS databases can be generated from the hosts, passwd, group, and aliases files on the NIS master.
NIS is best suited for a moderate-sized network (one containing approximately 1000 stations, or a small collection of interconnected networks). NIS is part of the NFS optional software and is detailed in the NIS Administration Guide.
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