1REVNETGROUP(8) NIS Reference Manual REVNETGROUP(8)
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6 revnetgroup - generate reverse netgroup data
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9 /usr/lib/yp/revnetgroup [-u | -h]
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12 Revnetgroup processes the standard input in netgroup(5) format into
13 what is called reverse netgroup form. That is, where the original file
14 shows netgroup memberships in terms of which members reside in a
15 particular group, the reverse netgroup format specifies what groups are
16 associated with a particular member. This information is used to
17 generate the netgroup.byuser and netgroup.byhosts NIS maps. These
18 reverse netgroup maps are used to help speed up netgroup lookups,
19 particularly for the innetgr() library function.
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21 The revnetgroup command prints its results on the standard output. It
22 is usually called only by /var/yp/Makefile when rebuilding the NIS
23 netgroup maps.
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26 -u
27 Generate netgroup.byuser output; only username information in the
28 original netgroup file is processed.
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30 -h
31 Generate netgroup.byhost output; only hostname information in the
32 original netgroup file is processed.
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35 /var/yp/Makefile
36 The Makefile to build the NIS databases.
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38 /etc/netgroup
39 The default netgroup database file. This file is most often found
40 only on the NIS master server.
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43 getnetgrent(3), netgroup(5),
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46 revnetgroup was written by Thorsten Kukuk <kukuk@linux-nis.org>.
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50NIS Reference Manual 03/19/2019 REVNETGROUP(8)