--update option updates all of the configuration files with the configuration changes. There are a couple of alternative options with slightly different behavior:
--kickstart writes the updated configuration to a kickstart file.
--test displays the full configuration with changes, but does not edit any configuration files.
authconfig can be used to back up and restore previous configurations. All archives are saved to a unique subdirectory in the
/var/lib/authconfig/ directory. For example, the
--savebackup option gives the backup directory as
[root@server ~]# authconfig --savebackup=2011-07-01
This backs up all of the authentication configuration files beneath the
Any of the saved backups can be used to restore the configuration using the
--restorebackup option, giving the name of the manually saved configuration:
[root@server ~]# authconfig --restorebackup=2011-07-01
authconfig automatically makes a backup of the configuration before it applies any changes (with the
--update option). The configuration can be restored from the most recent automatic backup, without having to specify the exact backup, using the