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.

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