REVNETGROUP(8)		       Reference Manual			REVNETGROUP(8)



NAME
       revnetgroup - generate reverse netgroup data

SYNOPSIS
       /usr/lib64/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 par-
       ticular group, the reverse netgroup format specifies  what  groups  are
       associated with a particular member. This information is used to gener-
       ate 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 net-
       group 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

SEE ALSO
       getnetgrent(3), netgroup(5),

AUTHOR
       revnetgroup was written by Thorsten Kukuk <kukuk@suse.de>.



YP Server			  August 2001			REVNETGROUP(8)