September 2009
Beginner
942 pages
85h 34m
English
NIS stores information in database files called maps. Each map consists of a pair of dbm database files, one containing a directory of keys (a bitmap of indices) and the other containing data values. The non-ASCII structure of dbm files necessitates using NIS tools such as yppush to move maps between machines.
The file /var/yp/YP_MAP_X_LATE contains a complete listing of active NIS maps, as well as NIS aliases for NIS maps. All maps must be listed in this file in order for NIS to serve them.
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