TDBBACKUP(8) System Administration tools TDBBACKUP(8)

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:

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

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

+o *.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.

Samba 3.6 2015-04-25 TDBBACKUP(8)