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Full Discussion: keep UIDs/GIDs consistent
Top Forums UNIX for Advanced & Expert Users keep UIDs/GIDs consistent Post 302295364 by Perderabo on Saturday 7th of March 2009 05:25:48 PM
Old 03-07-2009
Typically this is done with LDAP, or nis. In either case you have a couple of servers and all of your hosts contacts one of them to obtain the data the you currently keep in /etc/passwd, /etc/shadow, and /etc group.

You are are probably using DNS rather than relying on a large /etc/hosts file. LDAP and nis are similar in concept. nis has know security problems. There is an updated version called nis+ but I have never used it. LDAP is the latest service and possibly the best choice.
 

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MKNETID(8)						       NIS Reference Manual							MKNETID(8)

NAME
mknetid - generate data for netid map SYNOPSIS
/usr/lib/yp/mknetid [-q] [-h hosts] [-p passwd] [-g group] [-d domain] [-n netid] /usr/lib/yp/mknetid --version DESCRIPTION
mknetid generates the netid.byname NIS map from the contents of the group(5), passwd(5), hosts(5) and netid files. It checks for multiple entrys of netids and warn for them or filters them out. It is only called by /var/yp/Makefile when rebuilding the NIS map. OPTIONS
-q This flag turns on 'quiet' mode, don't print a warning message when finding an duplicate netid entry. -h hosts The -h flag can be used to specify the use of another hosts file than the default /etc/hosts. -p passwd The -p flag can be used to specify the use of another passwd file than the default /etc/passwd. -g group The -g flag can be used to specify the use of another group file than the default /etc/group. -n netid The -n flag can be used to specify the use of another netid file than the default /etc/netid. -d domain The mknetid command uses the system domainname by default. If it is not set or you whish to override it, you must use the -d parameter. --version Prints the version number FILES
/etc/group groups file /etc/hosts hosts database /etc/netid netname database /etc/passwd password file SEE ALSO
passwd(8), group(5), hosts(5), passwd(5) AUTHOR
mknetid was written by Thorsten Kukuk <kukuk@linux-nis.org>. NIS Reference Manual 09/26/2007 MKNETID(8)
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