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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:

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

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

       ·   *.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			  10/20/2013			 NTDBBACKUP(8)

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