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Marc Muehlfeld

2007-Mar-13 20:09 UTC

[Samba] Owner/Permissions and winbind

Hello,

I have two Samba Domains and each trust each other (PDCs run 3.0.22). Also
I have a samba member server (3.0.24) that runs winbind. When I use wbinfo
I can see the user and groups of both domains. I also can chown/chgrp
files with users of the domain the server is member of. But I can`t
chown/chgrp with accounts of the trusted domain. chown doesn`t work at
all. chgrp works, but then only the gid (from winbind) is shown:


# chown "TRUSTDOM+muehlfeld" file.txt
chown: `TRUSTDOM+muehlfeld': invalid user

# chgrp "TRUSTDOM+group" file.txt
# ls -la file.txt
-rw-r--r--  1 root 10051 0 Mar  8 12:32 file.txt


I also have a Win2003r2 Member Server. When I add rights to a file for a
user of the trusted domain, I see the name. But when I close the window
and then open it again, the name of the user/group changed into the SID.


So I guess it`s a problem or misconfiguration from the two PDCs, and not
of the member servers.


This are my winbind settings:

        idmap backend = ldap:ldap://192.168.29.4
        idmap uid = 10000-20000
        idmap gid = 10000-20000
        winbind separator = +
        winbind enum users = yes
        winbind enum groups = yes
        template homedir = /home/%U
        template shell = /bin/false
        winbind nested groups = yes
        winbind cache time = 300
        winbind nss info = template
        winbind use default domain = yes
        winbind trusted domains only = yes


Any idea what could be wrong?


Also one more question: Any plans, when winbind on a PDC could handle
local users and from the trusted domains?


Best regards
Marc Muehlfeld


-- 
Marc Muehlfeld
Zentrum fuer Humangenetik und Laboratoriumsmedizin Dr. Klein und Dr. Rost
Lochhamer Str. 29 - D-82152 Martinsried
Telefon: +49(0)89/895578-0 - Fax: +49(0)89/895578-78
http://www.medizinische-genetik.de

Mostro Mostro

2007-Mar-13 22:11 UTC

head link

[Samba] Owner/Permissions and winbind

On 3/13/07, Marc Muehlfeld <Marc.Muehlfeld@medizinische-genetik.de>
wrote:>
> Hello,
>
> I have two Samba Domains and each trust each other (PDCs run 3.0.22). Also
> I have a samba member server (3.0.24) that runs winbind. When I use wbinfo
> I can see the user and groups of both domains. I also can chown/chgrp
> files with users of the domain the server is member of. But I can`t
> chown/chgrp with accounts of the trusted domain. chown doesn`t work at
> all. chgrp works, but then only the gid (from winbind) is shown:
>
>
> # chown "TRUSTDOM+muehlfeld" file.txt
> chown: `TRUSTDOM+muehlfeld': invalid user
>
> # chgrp "TRUSTDOM+group" file.txt
> # ls -la file.txt
> -rw-r--r--  1 root 10051 0 Mar  8 12:32 file.txt
>
>
> I also have a Win2003r2 Member Server. When I add rights to a file for a
> user of the trusted domain, I see the name. But when I close the window
> and then open it again, the name of the user/group changed into the SID.
>
>
> So I guess it`s a problem or misconfiguration from the two PDCs, and not
> of the member servers.
>
>
> This are my winbind settings:
>
>         idmap backend = ldap:ldap://192.168.29.4
>         idmap uid = 10000-20000
>         idmap gid = 10000-20000
>         winbind separator = +
>         winbind enum users = yes
>         winbind enum groups = yes
>         template homedir = /home/%U
>         template shell = /bin/false
>         winbind nested groups = yes
>         winbind cache time = 300
>         winbind nss info = template
>         winbind use default domain = yes
>         winbind trusted domains only = yes
>
>
> Any idea what could be wrong?
>
>
> Also one more question: Any plans, when winbind on a PDC could handle
> local users and from the trusted domains?
>
>
> Best regards
> Marc Muehlfeld
>
>
> --
> Marc Muehlfeld
> Zentrum fuer Humangenetik und Laboratoriumsmedizin Dr. Klein und Dr. Rost
> Lochhamer Str. 29 - D-82152 Martinsried
> Telefon: +49(0)89/895578-0 - Fax: +49(0)89/895578-78
> http://www.medizinische-genetik.de

I am witnessing the same thing. Are you seeing core dumps in
/var/log/messages?

####################

Hi all,>
> smbd -V:   Version 3.0.23d-19.2-1179-SUSE-SL10.2
>
> I'm seeing a core dump in /var/log/messages when trying to access the
> security tab from Windows when I have Active Directory users and groups
> assigned to the Linux file system.
>
> I can replicate this each time by doing the following.
>
> Change the permissions on the Linux directory I have specified as a share
> in smb.conf.
>
> ls -ltr /dir/
> drwxrwxrwx  2 root                  users                     4096
> 2007-03-10 09:17 shared
>
> With these setting I can access the security tab from Windows without
> seeing any errors in the messages log.
>
> Permissions from the security tab show up as:
>
> Everyone
> root (Unix User\root)
> users (Unix Group\users)
>
> Now, I change permissions on the file system to:
>
>  chown -R "DOMAIN\administrator" shared/ && chgrp -R
"DOMAIN\domain users"
> shared/
>
> ls -ltr /dir/
> drwxrwxrwx  2 DOMAIN\administrator DOMAIN\domain users  4096 2007-03-10
> 09:17 shared
>
> Next, go back to access the security tab on the share while tailing the
> messages log. I receive this:
>
> The log below doesn't get created until I click on the security tab.
>
> [2007/03/10 10
>   ==============================================================> 
[2007/03/10 10
>   INTERNAL ERROR
>   Please read the Trouble-Shooting section of the Samba3-HOWTO
>  [2007/03/10 10
>
>   From
>  [2007/03/10 10
>   ==============================================================> 
[2007/03/10 10
>   PANIC (pid 13523)
>  [2007/03/10 10
>   BACKTRACE
>    #0 /usr/sbin/smbd(log_stack_trace+0x2d) [0x8021661d]
>    #1 /usr/sbin/smbd(smb_panic+0x5d) [0x8021674d]
>    #2 /usr/sbin/smbd [0x8020250a]
>    #3 [0xb7f9a420]
>    #4 /lib/libc.so.6(abort+0x101) [0xb7af8801]
>    #5 /usr/sbin/smbd [0x8021c9f6]
>    #6 /usr/sbin/smbd(talloc_steal+0x3a) [0x8021cbca]
>    #7 /usr/sbin/smbd(lookup_sids+0x3aa) [0x801d3bca]
>    #8 /usr/sbin/smbd [0x80106dc1]
>    #9 /usr/sbin/smbd(_lsa_lookup_sids2+0x12d) [0x8010741d]
>    #10 /usr/sbin/smbd [0x80103621]
>    #11 /usr/sbin/smbd(api_rpcTNP+0x198) [0x80160ae8]
>    #12 /usr/sbin/smbd(api_pipe_request+0x19e) [0x8016113e]
>    #13 /usr/sbin/smbd [0x8015cbcf]
>    #14 /usr/sbin/smbd [0x8015d10c]
>    #15 /usr/sbin/smbd(write_to_pipe+0x6e) [0x8015b93e]
>    #16 /usr/sbin/smbd [0x8005ee81]
>    #17 /usr/sbin/smbd [0x8005f3b6]
>    #18 /usr/sbin/smbd(reply_trans+0x5e0) [0x8005fcc0]
>    #19 /usr/sbin/smbd [0x800b3d40]
>    #20 /usr/sbin/smbd(smbd_process+0x78b) [0x800b4e3b]
>    #21 /usr/sbin/smbd(main+0xbd0) [0x802bebf0]
>    #22 /lib/libc.so.6(__libc_start_main+0xdc) [0xb7ae3f9c]
>    #23 /usr/sbin/smbd [0x80042d91]
>  [2007/03/10 10
>   unable to change to /var/log/samba/cores/smbdrefusing to dump core
>  [2007/03/10 10
>   ==============================================================> 
[2007/03/10 10
>   INTERNAL ERROR
>   Please read the Trouble-Shooting section of the Samba3-HOWTO
>  [2007/03/10 10
>
>   From
>  [2007/03/10 10
>   ==============================================================> 
[2007/03/10 10
>   PANIC (pid 13524)
>  [2007/03/10 10
>   BACKTRACE
>    #0 /usr/sbin/smbd(log_stack_trace+0x2d) [0x8021661d]
>    #1 /usr/sbin/smbd(smb_panic+0x5d) [0x8021674d]
>    #2 /usr/sbin/smbd [0x8020250a]
>    #3 [0xb7f9a420]
>    #4 /lib/libc.so.6(abort+0x101) [0xb7af8801]
>    #5 /usr/sbin/smbd [0x8021c9f6]
>    #6 /usr/sbin/smbd(talloc_steal+0x3a) [0x8021cbca]
>    #7 /usr/sbin/smbd(lookup_sids+0x3aa) [0x801d3bca]
>    #8 /usr/sbin/smbd [0x80106dc1]
>    #9 /usr/sbin/smbd(_lsa_lookup_sids2+0x12d) [0x8010741d]
>    #10 /usr/sbin/smbd [0x80103621]
>    #11 /usr/sbin/smbd(api_rpcTNP+0x198) [0x80160ae8]
>    #12 /usr/sbin/smbd(api_pipe_request+0x19e) [0x8016113e]
>    #13 /usr/sbin/smbd [0x8015cbcf]
>    #14 /usr/sbin/smbd [0x8015d10c]
>    #15 /usr/sbin/smbd(write_to_pipe+0x6e) [0x8015b93e]
>    #16 /usr/sbin/smbd [0x8005ee81]
>    #17 /usr/sbin/smbd [0x8005f3b6]
>    #18 /usr/sbin/smbd(reply_trans+0x5e0) [0x8005fcc0]
>    #19 /usr/sbin/smbd [0x800b3d40]
>    #20 /usr/sbin/smbd(smbd_process+0x78b) [0x800b4e3b]
>    #21 /usr/sbin/smbd(main+0xbd0) [0x802bebf0]
>    #22 /lib/libc.so.6(__libc_start_main+0xdc) [0xb7ae3f9c]
>    #23 /usr/sbin/smbd [0x80042d91]
>  [2007/03/10 10
>   unable to change to /var/log/samba/cores/smbdrefusing to dump core
>
> P.S. I'm really new to SAMBA as a domain member server and I don't
want to
> waste anyone's time with useless information. So, if there is more
> information or further debugging needed before I post let me know...
>
> Thanks in advance...
>

Volker Lendecke

2007-Mar-14 07:02 UTC

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[Samba] Owner/Permissions and winbind

On Tue, Mar 13, 2007 at 06:11:08PM -0400, Mostro Mostro
wrote:> I am witnessing the same thing. Are you seeing core dumps in
> /var/log/messages?
> 
> ####################
...
>   #0 /usr/sbin/smbd(log_stack_trace+0x2d) [0x8021661d]
>   #1 /usr/sbin/smbd(smb_panic+0x5d) [0x8021674d]
>   #2 /usr/sbin/smbd [0x8020250a]
>   #3 [0xb7f9a420]
>   #4 /lib/libc.so.6(abort+0x101) [0xb7af8801]
>   #5 /usr/sbin/smbd [0x8021c9f6]
>   #6 /usr/sbin/smbd(talloc_steal+0x3a) [0x8021cbca]
>   #7 /usr/sbin/smbd(lookup_sids+0x3aa) [0x801d3bca]
>   #8 /usr/sbin/smbd [0x80106dc1]
>   #9 /usr/sbin/smbd(_lsa_lookup_sids2+0x12d) [0x8010741d]
Just to re-assure you: I would *REALLY* like to fix this
segfault, but I just have not been able to reproduce this
and nobody has been able to send me a valgrind log with
debugging symbols turned on.

So if anybody around here sees this segfault and would be
willing to let me ssh as root into the machine, please
contact me. I would certainly be able to provide you with
ssh keys, a phone number to verify the fingerprint etc.

Volker
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Marc Muehlfeld

2007-Mar-16 11:37 UTC

head link

[Samba] Owner/Permissions and winbind

Hi,

Mostro Mostro schrieb:> I am witnessing the same thing. Are you seeing core dumps in
> /var/log/messages?
No. I don`t have any core dump messages here.


Regards
Marc


-- 
Marc Muehlfeld
Zentrum fuer Humangenetik und Laboratoriumsmedizin Dr. Klein und Dr. Rost
Lochhamer Str. 29 - D-82152 Martinsried
Telefon: +49(0)89/895578-0 - Fax: +49(0)89/895578-78
http://www.medizinische-genetik.de

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