How to regenerate passdb.tdb
in [Samba]
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From: Jeremy Allison on 8 Jul 2010 17:50 On Thu, Jul 08, 2010 at 11:32:32AM +1000, Abe Lau wrote: > Hi, > I was having problem with the tdbsam backend in which a particular user got > listed twice with pdbedit. > (http://www.mail-archive.com/samba(a)lists.samba.org/msg109110.html) > > Without much hope in fixing it, I am planning to re-generating passdb.tdb on > my PDC by: > (1)exporting tdbsam to smbpasswd backend > (2)delete passdb.tdb > (3)re-import smbpasswd to tdbsam backend If you do this you lose a lot of the extra data that tdbsam stores that smbpasswd does not. Jeremy. -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
From: Gaiseric Vandal on 8 Jul 2010 18:30 On 07/08/2010 05:43 PM, Jeremy Allison wrote: > On Thu, Jul 08, 2010 at 11:32:32AM +1000, Abe Lau wrote: > >> Hi, >> I was having problem with the tdbsam backend in which a particular user got >> listed twice with pdbedit. >> (http://www.mail-archive.com/samba(a)lists.samba.org/msg109110.html) >> >> Without much hope in fixing it, I am planning to re-generating passdb.tdb on >> my PDC by: >> (1)exporting tdbsam to smbpasswd backend >> (2)delete passdb.tdb >> (3)re-import smbpasswd to tdbsam backend >> > If you do this you lose a lot of the extra > data that tdbsam stores that smbpasswd does > not. > > Jeremy. > Does "tdbdump passdb.tbd" show the user listed twice? Maybe you can use tdbtool to edit a copy of the file. The man page for tdbbackup indicates it can check for corruption (but not fix it.) -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
From: Abe Lau on 8 Jul 2010 20:50 On Fri, Jul 9, 2010 at 8:26 AM, Gaiseric Vandal <gaiseric.vandal(a)gmail.com>wrote: > On 07/08/2010 05:43 PM, Jeremy Allison wrote: > >> On Thu, Jul 08, 2010 at 11:32:32AM +1000, Abe Lau wrote: >> >> >>> Hi, >>> I was having problem with the tdbsam backend in which a particular user >>> got >>> listed twice with pdbedit. >>> (http://www.mail-archive.com/samba(a)lists.samba.org/msg109110.html) >>> >>> Without much hope in fixing it, I am planning to re-generating passdb.tdb >>> on >>> my PDC by: >>> (1)exporting tdbsam to smbpasswd backend >>> (2)delete passdb.tdb >>> (3)re-import smbpasswd to tdbsam backend >>> >>> >> If you do this you lose a lot of the extra >> data that tdbsam stores that smbpasswd does >> not. >> >> Jeremy. >> >> > Does "tdbdump passdb.tbd" show the user listed twice? > > Maybe you can use tdbtool to edit a copy of the file. The man page for > tdbbackup indicates it can check for corruption (but not fix it.) > > > -- > To unsubscribe from this list go to the following URL and read the > instructions: https://lists.samba.org/mailman/options/samba > Yes, it seems to have appeared twice `tdbdump passdb.tdb` gives { key(13) = "RID_000003e9\00" data(5) = "usera\00" } ..................... { key(10) = "USER_usera\00" data(180) = "\00\00\00\00\FF\FF\FF\7F\FF\FF\FF\7F\00\00\00\00\B2c6L\00\00\00\00\FF\FF\FF\7F\05\00\00\00nick\00\04\00\00\00ORL\00\01\00\00\00\00\01\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\01\00\00\00\00\01\00\00\00\00\00\00\00\00\01\00\00\00\00T\04\00\00\01\02\00\00\00\00\00\00\10\00\00\00<\03\0C\8C\98\89\87\DC+\CE\0Ax)JP\01\00\00\00\00\10\00\00\00\A8\00\15\00\00\00 \00\00\00\FF\FF\FF\FF\FF\FF\FF\FF\FF\FF\FF\FF\FF\FF\FF\FF\FF\FF\FF\FF\FF\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\EC\04\00\00" } ................... { key(13) = "RID_00000454\00" data(5) = "usera\00" } I have tried using tdbbackup -v, but it didn't indicate any corruption. I may try tdbtool on a copy of passdb.db and see how it goes. Thanks for the suggestion. -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
From: Abe Lau on 8 Jul 2010 21:10 On Fri, Jul 9, 2010 at 7:43 AM, Jeremy Allison <jra(a)samba.org> wrote: > On Thu, Jul 08, 2010 at 11:32:32AM +1000, Abe Lau wrote: > > Hi, > > I was having problem with the tdbsam backend in which a particular user > got > > listed twice with pdbedit. > > (http://www.mail-archive.com/samba(a)lists.samba.org/msg109110.html) > > > > Without much hope in fixing it, I am planning to re-generating passdb.tdb > on > > my PDC by: > > (1)exporting tdbsam to smbpasswd backend > > (2)delete passdb.tdb > > (3)re-import smbpasswd to tdbsam backend > > If you do this you lose a lot of the extra > data that tdbsam stores that smbpasswd does > not. > > Jeremy. > I see. I remember I read from somewhere that the extra missing data can probably be re-generated, though it won't be user-specific (I can't find where I read that, and the list of difference). With my current samba acting as a PDC, would there be any critical data that I will be missing doing this re-import procedure? Of cos, I probably still need to fix the RID error when I am exporting to smbpasswd, in which I still don't have much clue. Abe -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
From: Abe Lau on 12 Jul 2010 09:20 On Fri, Jul 9, 2010 at 10:43 AM, Abe Lau <abelau+samba(a)gmail.com<abelau%2Bsamba(a)gmail.com> > wrote: > On Fri, Jul 9, 2010 at 8:26 AM, Gaiseric Vandal <gaiseric.vandal(a)gmail.com > > wrote: > >> On 07/08/2010 05:43 PM, Jeremy Allison wrote: >> >>> On Thu, Jul 08, 2010 at 11:32:32AM +1000, Abe Lau wrote: >>> >>> >>>> Hi, >>>> I was having problem with the tdbsam backend in which a particular user >>>> got >>>> listed twice with pdbedit. >>>> (http://www.mail-archive.com/samba(a)lists.samba.org/msg109110.html) >>>> >>>> Without much hope in fixing it, I am planning to re-generating >>>> passdb.tdb on >>>> my PDC by: >>>> (1)exporting tdbsam to smbpasswd backend >>>> (2)delete passdb.tdb >>>> (3)re-import smbpasswd to tdbsam backend >>>> >>>> >>> If you do this you lose a lot of the extra >>> data that tdbsam stores that smbpasswd does >>> not. >>> >>> Jeremy. >>> >>> >> Does "tdbdump passdb.tbd" show the user listed twice? >> >> Maybe you can use tdbtool to edit a copy of the file. The man page for >> tdbbackup indicates it can check for corruption (but not fix it.) >> >> >> -- >> To unsubscribe from this list go to the following URL and read the >> instructions: https://lists.samba.org/mailman/options/samba >> > > Yes, it seems to have appeared twice > > `tdbdump passdb.tdb` gives > { > key(13) = "RID_000003e9\00" > data(5) = "usera\00" > } > .................... > { > key(10) = "USER_usera\00" > data(180) = > "\00\00\00\00\FF\FF\FF\7F\FF\FF\FF\7F\00\00\00\00\B2c6L\00\00\00\00\FF\FF\FF\7F\05\00\00\00nick\00\04\00\00\00ORL\00\01\00\00\00\00\01\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\01\00\00\00\00\01\00\00\00\00\00\00\00\00\01\00\00\00\00T\04\00\00\01\02\00\00\00\00\00\00\10\00\00\00<\03\0C\8C\98\89\87\DC+\CE\0Ax)JP\01\00\00\00\00\10\00\00\00\A8\00\15\00\00\00 > \00\00\00\FF\FF\FF\FF\FF\FF\FF\FF\FF\FF\FF\FF\FF\FF\FF\FF\FF\FF\FF\FF\FF\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\EC\04\00\00" > } > .................. > { > key(13) = "RID_00000454\00" > data(5) = "usera\00" > } > > I have tried using tdbbackup -v, but it didn't indicate any corruption. I > may try tdbtool on a copy of passdb.db and see how it goes. Thanks for the > suggestion. > Just tried using tdbtool and removed one of the duplicated RID key of usera. I randomly picked one, because I am really not sure which one is correct (or if it even matters). Now, pdbedit does not display 2 duplicated entries. I hope that is the solution, and the problem won't come back again. will report back in case this leads to other complications. Just a side note, according to the old man page of tdbtool ( http://www.samba.org/samba/docs/man/manpages-3/tdbtool.8.html), there is an option "check" to verify the integrity of tdb file, but my copy from Debian Lenny doesn't have it! I wonder if there is any other better integrity checking tool for the tdb, apart from tdbbackup, which didn't ever report any problem in my case all the way anyway! Thanks all for the help, Abe -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
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