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NTDBBACKUP(8)		  System Administration	tools		 NTDBBACKUP(8)

NAME
       ntdbbackup - tool for backing up	and for	validating the integrity of
       samba .ntdb files

SYNOPSIS
       ntdbbackup [-s suffix] [-v] [-h]

DESCRIPTION
       This tool is part of the	samba(1) suite.

       ntdbbackup is a tool that may be	used to	backup samba .ntdb files. This
       tool may	also be	used to	verify the integrity of	the .ntdb files	prior
       to samba	startup	or during normal operation. If it finds	file damage
       and it finds a prior backup the backup file will	be restored.

OPTIONS
       -h
	   Get help information.

       -s suffix
	   The -s option allows	the administrator to specify a file backup
	   extension. This way it is possible to keep a	history	of ntdb	backup
	   files by using a new	suffix for each	backup.

       -v
	   The -v will check the database for damages (corrupt data) which if
	   detected causes the backup to be restored.

COMMANDS
       GENERAL INFORMATION

       The ntdbbackup utility can safely be run	at any time. It	was designed
       so that it can be used at any time to validate the integrity of ntdb
       files, even during Samba	operation. Typical usage for the command will
       be:

       ntdbbackup [-s suffix] *.ntdb

       Before restarting samba the following command may be run	to validate
       .ntdb files:

       ntdbbackup -v [-s suffix] *.ntdb

       Note that Samba 4 can use .tdb files instead, so	you should use
       tdbbackup on those files.

       Samba .tdb and .ntdb files are stored in	various	locations, be sure to
       run backup all .(n)tdb files on the system. Important files includes:

       o    secrets.(n)tdb - usual location is in the /usr/local/samba/private
	   directory, or on some systems in /etc/samba.

       o    passdb.(n)tdb - usual location is in the /usr/local/samba/private
	   directory, or on some systems in /etc/samba.

       o    *.tdb and *.ntdb located in	the /usr/local/samba/var directory or
	   on some systems in the /var/cache or	/var/lib/samba directories.

VERSION
       This man	page is	correct	for version 4 of the Samba suite.

SEE ALSO
       tdbbackup(8), ntdbrestore(8)

AUTHOR
       The original Samba software and related utilities were created by
       Andrew Tridgell.	Samba is now developed by the Samba Team as an Open
       Source project similar to the way the Linux kernel is developed.

       The ntdbbackup man page was written by Rusty Russell, based on the
       tdbbackup man page by John H Terpstra.

Samba 4.1			  03/12/2014			 NTDBBACKUP(8)

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | COMMANDS | VERSION | SEE ALSO | AUTHOR

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