NIS
The NIS, formerly called the Sun Yellow Pages (YP), is a distributed database system that lets the system administrator manage the configuration of many hosts from a central location. Common configuration information, which would have to be maintained separately on each host in a network without NIS, can be stored and maintained in a central location and then propagated to all the nodes in the network. NIS stores information about workstation names and addresses, users, the network itself, and network services. This collection of network information is referred to as the NIS namespace.
Note
As stated, the NIS was formerly known as the Sun Yellow Pages (YP). The functionality of the two remains the same; only the name has changed. The name ...
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