[Samba] what are *.tdb files?

[Adam Williams]

In /varcache/samba/ I have several .tdb files. Like brlock.tdb,
locking.tdb, ntdrivers.tdb, etc. Excusing my ignorance, what are these
files, and what do they do? And why must they be copied when migrating
from one samba server to a new one?

[Gerald (Jerry) Carter]

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Adam Williams wrote:

| In /varcache/samba/ I have several .tdb files.
| Like brlock.tdb, locking.tdb, ntdrivers.tdb, etc.
| Excusing my ignorance, what are these files, and
| what do they do? And why must they be copied when
| migrating from one samba server to a new one?

Samba uses a lightweight database called Trivial Database
(tdb). Here's the list (john, we should really document
this somewhere).


(*) information persistent across restarts (but not
necessarily important to backup).


account_policy.tdb* NT account policy settings
such as pw expiration, etc...

brlock.tdb byte range locks

browse.dat browse lists

connections.tdb share connections (used to enforce
max connections, etc...)

gencache.tdb generic caching db

group_mapping.tdb* group mapping information

lang_en.tdb Language encodings (i think).

locking.tdb share modes & oplocks

login_cache.tdb* bad pw attempts

messages.tdb Samba messaging system

netsamlogon_cache.tdb* cache of user net_info_3 struct
from net_samlogon() request (as a
domain member)

ntdrivers.tdb* installed printer drivers

ntforms.tdb* installed printer forms

ntprinters.tdb* installed printer information

printing/ directory containing tdb per print
queue of cached lpq output

registry.tdb Windows registry skeleton
(connect via regedit.exe)

sessionid.tdb session information (e.g. support for
'utmp = yes')

share_info.tdb* share acls

unexpected.tdb unexpected packet queue needed to
support windows clients that respond
on a difference port that the
originating request) (i could be wrong
~ on this one).

winbindd_cache.tdb winbindd's cache of user lists, etc...

winbindd_idmap.tdb* winbindd's local idmap db

wins.dat* wins database when 'wins support = yes'



The following tdb's should be backed up IMO:

nt*.tdb
account_policy.tdb
group_mapping.tdb
share_info.tdb




cheers, jerry
=====================================================================
Alleviating the pain of Windows(tm) ------- http://www.samba.org
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"I never saved anything for the swim back." Ethan Hawk in Gattaca
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[Eric Feldhusen]

Post by Gerald (Jerry) Carter
| In /varcache/samba/ I have several .tdb files.
| Like brlock.tdb, locking.tdb, ntdrivers.tdb, etc.
| Excusing my ignorance, what are these files, and
| what do they do? And why must they be copied when
| migrating from one samba server to a new one?
Samba uses a lightweight database called Trivial Database
(tdb). Here's the list (john, we should really document
this somewhere).
(*) information persistent across restarts (but not
necessarily important to backup).
account_policy.tdb* NT account policy settings
such as pw expiration, etc...
brlock.tdb byte range locks
browse.dat browse lists
connections.tdb share connections (used to enforce
max connections, etc...)
gencache.tdb generic caching db
group_mapping.tdb* group mapping information
lang_en.tdb Language encodings (i think).
locking.tdb share modes & oplocks
login_cache.tdb* bad pw attempts
messages.tdb Samba messaging system
netsamlogon_cache.tdb* cache of user net_info_3 struct
from net_samlogon() request (as a
domain member)
ntdrivers.tdb* installed printer drivers
ntforms.tdb* installed printer forms
ntprinters.tdb* installed printer information
printing/ directory containing tdb per print
queue of cached lpq output
registry.tdb Windows registry skeleton
(connect via regedit.exe)
sessionid.tdb session information (e.g. support for
'utmp = yes')
share_info.tdb* share acls
unexpected.tdb unexpected packet queue needed to
support windows clients that respond
on a difference port that the
originating request) (i could be wrong
~ on this one).
winbindd_cache.tdb winbindd's cache of user lists, etc...
winbindd_idmap.tdb* winbindd's local idmap db
wins.dat* wins database when 'wins support = yes'
nt*.tdb
account_policy.tdb
group_mapping.tdb
share_info.tdb

As a brief follow-up to this, I'm in the process of moving 2 RH8/Samba
3.0.x servers to 2 new FC3/Samba 3.0.1x servers, users, groups,
printers, roaming profiles, samba tdb files, cups printers, etc.. I've
seen several people ask how to do this on the list, so I'm starting a
"how-to" that I'll post to the list for corrections, changes, etc..

Just thought it'd be useful. Figured since I can't code, I can help
with documentation. Of course, I'll see how the move goes for me before
posting a "how-to" to the list.

Eric Feldhusen
--
NOTICE: New email address: ***@remc1.org
--------------
Eric Feldhusen
Network Administrator for Adams, Chassell,
Dollar Bay-Tamarack City, and
Lake Linden-Hubbell Public Schools
emailto:***@remc1.org

[William Marshall]

Post by Gerald (Jerry) Carter
| In /varcache/samba/ I have several .tdb files.
| Like brlock.tdb, locking.tdb, ntdrivers.tdb, etc.
| Excusing my ignorance, what are these files, and
| what do they do? And why must they be copied when
| migrating from one samba server to a new one?
Samba uses a lightweight database called Trivial Database
(tdb). Here's the list (john, we should really document
this somewhere).

<snip -- excellent list removed and saved away>

Post by Gerald (Jerry) Carter
winbindd_idmap.tdb* winbindd's local idmap db
nt*.tdb
account_policy.tdb
group_mapping.tdb
share_info.tdb

If you're running with winbind and using local tdbs rather than LDAP, I'd
vote to add the winbindd_idmap.tdb to the list of things to backup.

In fact I tdbbackup this file once an hour into a winbindd_idmap.tdb.HH
file. (where HH is 0-23) We've had a few of these files get corrupt and
then you end up no owners & groups on all/some of your files. It is a real
mess.

Bill Marshall
IBM Global Services Unix & Intel Servers
Rochester PC Server Team

[Gerald (Jerry) Carter]

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William Marshall wrote:
|
|>winbindd_idmap.tdb* winbindd's local idmap db
|
|>The following tdb's should be backed up IMO:
|>
|> nt*.tdb
|> account_policy.tdb
|> group_mapping.tdb
|> share_info.tdb
|
| If you're running with winbind and using local tdbs
| rather than LDAP, I'd vote to add the winbindd_idmap.tdb to
| the list of things to backup.

Doh! I think I forgot that one first time I posted that message
(several months ago as well). Thanks. You're correct.








cheers, jerry
=====================================================================
Alleviating the pain of Windows(tm) ------- http://www.samba.org
GnuPG Key ----- http://www.plainjoe.org/gpg_public.asc
"I never saved anything for the swim back." Ethan Hawk in Gattaca
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