[Samba] LDAP problem

[Rune Tønnesen]

Hello to you

I've had the same problem on my old suse linux enterprise server 9, shutdown due to
powerissue.
I got the same errors from workstations (windows XP).
My problem was that corruption of openldaps databasefiles (Berkeley) had occured.
I've solved my problem by using the openldap database recovery tools to do a manual
recover.

http://www.google.co.uk/search?hl=en&q=openldap+recover&meta=

Secondly some journaled filesystems aren't good at recovering corrupted files like
berkeley databases due powerfailure.

This problem occur if you enable use of diskcache on your harddrive without a UPS,
get one for your one safety and jobsecurity, it just have to be big enough to
shutdown the server in a prober way.

-- 
Rune Tønnesen
Venlig Hilsen/Best Regards


> Hello,
>
> I have a problem with my PDC server.
> It runs samba + openLDAP. It used to work fine.
> The machine was stopped today because of a power supply failure,
> and since it was restarted i have problems connecting to the domain.
>
> - The ldap data was restored from a ldif file, the ldap seems to work
> fine. when i type
> ldapsearch -x
> I see the contents of the ldap data.
>
> - When I try :
> smbclient -L \\pdc -U tleost
> it asks for my password, and i see the samba shares.
>
> - I tried, as root, on the pdc:
> smbpasswd -w
> which was successful.
>
>
> ... anyway, i cannot connect from my windows clients. I get an error
> message telling me the pdc is not available.
>
>
> Here is a log i get (/var/log/samba/devel2.log)
> <-----------------------------------------
> [2008/01/06 15:17:45, 3] smbd/sec_ctx.c:set_sec_ctx(288)
>    setting sec ctx (0, 0) - sec_ctx_stack_ndx = 1
> [2008/01/06 15:17:45, 3] smbd/sec_ctx.c:pop_sec_ctx(386)
>    pop_sec_ctx (0, 0) - sec_ctx_stack_ndx = 0
> [2008/01/06 15:17:45, 3] auth/auth.c:check_ntlm_password(219)
>    check_ntlm_password:  Checking password for unmapped user
> []\[]@[DEVEL2] with the new password interface
> [2008/01/06 15:17:45, 3] auth/auth.c:check_ntlm_password(222)
>    check_ntlm_password:  mapped user is: [COMPANY]\[]@[DEVEL2]
> [2008/01/06 15:17:45, 3] smbd/sec_ctx.c:push_sec_ctx(256)
>    push_sec_ctx(0, 0) : sec_ctx_stack_ndx = 1
> [2008/01/06 15:17:45, 3] smbd/uid.c:push_conn_ctx(365)
>    push_conn_ctx(0) : conn_ctx_stack_ndx = 0
> [2008/01/06 15:17:45, 3] smbd/sec_ctx.c:set_sec_ctx(288)
>    setting sec ctx (0, 0) - sec_ctx_stack_ndx = 1
> [2008/01/06 15:17:45, 2] passdb/pdb_ldap.c:init_sam_from_ldap(511)
>    init_sam_from_ldap: Entry found for user: Invite
> [2008/01/06 15:17:45, 4] lib/substitute.c:automount_server(323)
>    Home server: servpdc
> [2008/01/06 15:17:45, 3] smbd/sec_ctx.c:pop_sec_ctx(386)
>    pop_sec_ctx (0, 0) - sec_ctx_stack_ndx = 0
> [2008/01/06 15:17:45, 1] auth/auth_util.c:make_server_info_sam(822)
>    User Invite in passdb, but getpwnam() fails!
> [2008/01/06 15:17:45, 3] smbd/sec_ctx.c:push_sec_ctx(256)
>    push_sec_ctx(0, 0) : sec_ctx_stack_ndx = 1
> [2008/01/06 15:17:45, 3] smbd/uid.c:push_conn_ctx(365)
>    push_conn_ctx(0) : conn_ctx_stack_ndx = 0
> [2008/01/06 15:17:45, 3] smbd/sec_ctx.c:set_sec_ctx(288)
>    setting sec ctx (0, 0) - sec_ctx_stack_ndx = 1
> [2008/01/06 15:17:45, 4] passdb/pdb_ldap.c:ldapsam_getsampwnam(1300)
>    ldapsam_getsampwnam: Unable to locate user [] count=0
> [2008/01/06 15:17:45, 3] smbd/sec_ctx.c:pop_sec_ctx(386)
>    pop_sec_ctx (0, 0) - sec_ctx_stack_ndx = 0
> [2008/01/06 15:17:45, 3] auth/auth_sam.c:check_sam_security(244)
>    check_sam_security: Couldn't find user '' in passdb file.
> [2008/01/06 15:17:45, 3] auth/auth_winbind.c:check_winbind_security(80)
>    check_winbind_security: Not using winbind, requested domain [COMPANY]
> was for this SAM.
> [2008/01/06 15:17:45, 2] auth/auth.c:check_ntlm_password(312)
>    check_ntlm_password:  Authentication for user [] -> [] FAILED with
> error NT_STATUS_NO_SUCH_USER
> [2008/01/06 15:17:45, 3] smbd/process.c:timeout_processing(1336)
>    timeout_processing: End of file from client (client has disconnected).
> [2008/01/06 15:17:45, 3] smbd/sec_ctx.c:set_sec_ctx(288)
>    setting sec ctx (0, 0) - sec_ctx_stack_ndx = 0
> [2008/01/06 15:17:45, 2] smbd/server.c:exit_server(571)
>    Closing connections
> [2008/01/06 15:17:45, 3] smbd/connection.c:yield_connection(69)
>    Yielding connection to
> [2008/01/06 15:17:45, 3] smbd/connection.c:yield_connection(76)
>    yield_connection: tdb_delete for name  failed with error Record does
> not exist.
> [2008/01/06 15:17:45, 3] smbd/server.c:exit_server(614)
> -------------------------------------------------------->
>
>
> Any help would be much appreciated.
>
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