NAME

       tdbbackup - tool for backing up and for validating the integrity of samba .tdb files

SYNOPSIS

       tdbbackup [-s suffix] [-v] [-h] [-n hashsize] [-l]

DESCRIPTION

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

       tdbbackup is a tool that may be used to backup samba .tdb files. This tool may also be
       used to verify the integrity of the .tdb 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 tdb 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.

       -n hashsize
           The -n option sets the hash size for the new backup tdb.

       -l
           This options disables any locking, by passing TDB_NOLOCK to tdb_open_ex(). Only use
           this for database files which are not used by any other process! And also only if it
           is otherwise not possible to open the database, e.g. databases which were created with
           mutex locking.

COMMANDS

       GENERAL INFORMATION

       The tdbbackup 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 tdb files, even during Samba operation.
       Typical usage for the command will be:

       tdbbackup [-s suffix] *.tdb

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

       tdbbackup -v [-s suffix] *.tdb

       Samba .tdb files are stored in various locations, be sure to run backup all .tdb file on
       the system. Important files includes:

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

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

       •   *.tdb 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 3 of the Samba suite.

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 tdbbackup man page was written by John H Terpstra.