NAME¶
revnetgroup - generate reverse netgroup data
SYNOPSIS¶
/usr/lib/yp/revnetgroup [-u|-h]
DESCRIPTION¶
Revnetgroup processes the standard input in netgroup(5) format
into what is called reverse netgroup form. That is, where the original
file shows netgroup memberships in terms of which members reside in a
particular group, the reverse netgroup format specifies what groups are
associated with a particular member. This information is used to generate the
netgroup.byuser and netgroup.byhosts NIS maps. These reverse
netgroup maps are used to help speed up netgroup lookups, particularly for the
innetgr library function.
The revnetgroup command prints its results on the standard
output. It is usually called only by /var/yp/Makefile when rebuilding
the NIS netgroup maps.
OPTIONS¶
The revnetgroup command supports the following options:
- -u
- Generate netgroup.byuser output; only username information in the
original netgroup file is processed.
- -h
- Generate netgroup.byhost output; only hostname information in the
original netgroup file is processed.
- Note at least one of the both flags must be specified.
FILES¶
- /var/yp/Makefile
- The Makefile to build the NIS databases
- /etc/netgroup
- the default netgroup database file. This file is most often found only on
the NIS master server
AUTHOR¶
revnetgroup was written by Thorsten Kukuk <kukuk@suse.de>.
