[Samba] samba 4.9.5 - joining Samba DC to existing Samba AD failed

Rowland Penny rpenny at samba.org
Wed Mar 27 08:27:55 UTC 2019 

On Wed, 27 Mar 2019 03:50:11 +0100
Franta Hanzlík <franta at hanzlici.cz> wrote:

> HOn Tue, 26 Mar 2019 09:29:41 +0000
> Rowland Penny via samba <samba at lists.samba.org> wrote:
> > Do not touch the files found under 'sam.ldb.d', use the 'sam'ldb'
> > file instead, or use the 'ldbsearch' as shown, not that it would
> > work for what you require, it should have been something like this:
> > 
> > ldbsearch -H ldap://dc4 -UAdministrator -b
> > 'CN=Administrator,CN=Users,DC=samdom,DC=example,DC=com' -s base
> > nTSecurityDescriptor
> > 
> > Which (after you enter Administrator's password)) should produce
> > something like this:
> > 
> > # record 1
> > dn: CN=Administrator,CN=Users,DC=samdom,DC=example,DC=com
> > nTSecurityDescriptor:
> > O:DAG:DAD:AI(A;;RPWPCRCCDCLCLORCWOWDSDDTSW;;;DA)(A;;RPWP
> > CRCCDCLCLORCWOWDSDDTSW;;;SY)(A;;RPWPCRCCDCLCLORCWOWDSDDTSW;;;AO)(A;;RPLCLORC; ;;PS)(OA;;CR;ab721a53-1e2f-11d0-9819-00aa0040529b;;PS)(OA;;CR;ab721a54-1e2f-1
> >  1d0-9819-00aa0040529b;;PS)(OA;;CR;ab721a56-1e2f-11d0-9819-00aa0040529b;;PS)(O
> >  A;;RPWP;77b5b886-944a-11d1-aebd-0000f80367c1;;PS)(OA;;RPWP;e45795b2-9455-11d1
> >  -aebd-0000f80367c1;;PS)(OA;;RPWP;e45795b3-9455-11d1-aebd-0000f80367c1;;PS)(OA
> >  ;;RP;037088f8-0ae1-11d2-b422-00a0c968f939;;RS)(OA;;RP;4c164200-20c0-11d0-a768
> >  -00aa006e0529;;RS)(OA;;RP;bc0ac240-79a9-11d0-9020-00c04fc2d4cf;;RS)(A;;RC;;;A
> >  U)(OA;;RP;59ba2f42-79a2-11d0-9020-00c04fc2d3cf;;AU)(OA;;RP;77b5b886-944a-11d1
> >  -aebd-0000f80367c1;;AU)(OA;;RP;e45795b3-9455-11d1-aebd-0000f80367c1;;AU)(OA;;
> >  RP;e48d0154-bcf8-11d1-8702-00c04fb96050;;AU)(OA;;CR;ab721a53-1e2f-11d0-9819-0
> >  0aa0040529b;;WD)(OA;;RP;5f202010-79a5-11d0-9020-00c04fc2d4cf;;RS)(OA;;RPWP;bf
> >  967a7f-0de6-11d0-a285-00aa003049e2;;CA)(OA;;RP;46a9b11d-60ae-405a-b7e8-ff8a58
> >  d456d2;;S-1-5-32-560)(OA;;RPWP;6db69a1c-9422-11d1-aebd-0000f80367c1;;S-1-5-32
> >  -561)(OA;;RPWP;5805bc62-bdc9-4428-a5e2-856a0f4c185e;;S-1-5-32-561)(OA;CIIOID;
> >  RP;4c164200-20c0-11d0-a768-00aa006e0529;4828cc14-1437-45bc-9b07-ad6f015e5f28;
> >  RU)(OA;CIID;RP;4c164200-20c0-11d0-a768-00aa006e0529;bf967aba-0de6-11d0-a285-0
> >  0aa003049e2;RU)(OA;CIIOID;RP;5f202010-79a5-11d0-9020-00c04fc2d4cf;4828cc14-14
> >  37-45bc-9b07-ad6f015e5f28;RU)(OA;CIID;RP;5f202010-79a5-11d0-9020-00c04fc2d4cf
> >  ;bf967aba-0de6-11d0-a285-00aa003049e2;RU)(OA;CIIOID;RP;bc0ac240-79a9-11d0-902
> >  0-00c04fc2d4cf;4828cc14-1437-45bc-9b07-ad6f015e5f28;RU)(OA;CIID;RP;bc0ac240-7
> >  9a9-11d0-9020-00c04fc2d4cf;bf967aba-0de6-11d0-a285-00aa003049e2;RU)(OA;CIIOID
> >  ;RP;59ba2f42-79a2-11d0-9020-00c04fc2d3cf;4828cc14-1437-45bc-9b07-ad6f015e5f28
> >  ;RU)(OA;CIID;RP;59ba2f42-79a2-11d0-9020-00c04fc2d3cf;bf967aba-0de6-11d0-a285-
> >  00aa003049e2;RU)(OA;CIIOID;RP;037088f8-0ae1-11d2-b422-00a0c968f939;4828cc14-1
> >  437-45bc-9b07-ad6f015e5f28;RU)(OA;CIID;RP;037088f8-0ae1-11d2-b422-00a0c968f93
> >  9;bf967aba-0de6-11d0-a285-00aa003049e2;RU)(OA;CIIOID;RP;b7c69e6d-2cc7-11d2-85
> >  4e-00a0c983f608;bf967a86-0de6-11d0-a285-00aa003049e2;ED)(OA;CIIOID;RP;b7c69e6
> >  d-2cc7-11d2-854e-00a0c983f608;bf967a9c-0de6-11d0-a285-00aa003049e2;ED)(OA;CII
> >  D;RP;b7c69e6d-2cc7-11d2-854e-00a0c983f608;bf967aba-0de6-11d0-a285-00aa003049e
> >  2;ED)(OA;CIIOID;RPLCLORC;;4828cc14-1437-45bc-9b07-ad6f015e5f28;RU)(OA;CIIOID;
> >  RPLCLORC;;bf967a9c-0de6-11d0-a285-00aa003049e2;RU)(OA;CIID;RPLCLORC;;bf967aba
> >  -0de6-11d0-a285-00aa003049e2;RU)(OA;CIID;RPWPCR;91e647de-d96f-4b70-9557-d63ff
> >  4f3ccd8;;PS)(A;CIID;RPWPCRCCDCLCLORCWOWDSDDTSW;;;EA)(A;CIID;LC;;;RU)(A;CIID;R
> >  PWPCRCCLCLORCWOWDSDSW;;;BA)S:AI(OU;CIIOIDSA;WP;f30e3bbe-9ff0-11d1-b603-0000f8
> >  0367c1;bf967aa5-0de6-11d0-a285-00aa003049e2;WD)(OU;CIIOIDSA;WP;f30e3bbf-9ff0-
> >  11d1-b603-0000f80367c1;bf967aa5-0de6-11d0-a285-00aa003049e2;WD)  
> 
> I'm stil confused, there is something I still miss, some joining
> piece - 'ldbsearch', as You recommended use it, fail with error '-U:
> unknown option': [root at dc1 samba]# ldbsearch -H ldap://dc1 -U
> Administrator -b 'CN=Administrator,CN=Users,DC=zamecek,DC=home' -s
> base nTSecurityDescriptor Invalid option -U: unknown option Usage:
> ldbsearch <options> <expression> <attrs...> Usage: [OPTION...]
>   -H, --url=URL                   database URL
>   -b, --basedn=DN                 base DN

What version of ldbsearch are you using ?

ldbsearch --help
Usage: [OPTION...]
  -H, --url=URL                               database URL
  -b, --basedn=DN                             base DN
.......
......
.....
Authentication options:
  -U, --user=[DOMAIN/]USERNAME[%PASSWORD]     Set the network username

ldbsearch -V
Version 4.9.4-Debian

> ...
> 
> All I'm able to get is (pointing to 'sam.ldb'):
> 
> [root at dc1 samba]# LDB_MODULES_PATH="/usr/lib64/samba/ldb/" ldbsearch
> -H /var/lib/samba/private/sam.ldb '(CN=Administrator)'
> nTSecurityDescriptor
> # record 1
> dn: CN=Administrator,CN=Users,DC=zamecek,DC=home
> nTSecurityDescriptor:
> O:DAG:DAD:AI(A;;RPWPCRCCDCLCLORCWOWDSDDTSW;;;DA)(A;;RPWP
> CRCCDCLCLORCWOWDSDDTSW;;;SY)(A;;RPWPCRCCDCLCLORCWOWDSDDTSW;;;AO)(A;;RPLCLORC; ;;PS)(OA;;CR;ab721a53-1e2f-11d0-9819-00aa0040529b;;PS)(OA;;CR;ab721a54-1e2f-1
>  1d0-9819-00aa0040529b;;PS)(OA;;CR;ab721a56-1e2f-11d0-9819-00aa0040529b;;PS)(O
>  A;;RPWP;77b5b886-944a-11d1-aebd-0000f80367c1;;PS)(OA;;RPWP;e45795b2-9455-11d1
>  -aebd-0000f80367c1;;PS)(OA;;RPWP;e45795b3-9455-11d1-aebd-0000f80367c1;;PS)(OA
>  ;;RP;037088f8-0ae1-11d2-b422-00a0c968f939;;RS)(OA;;RP;4c164200-20c0-11d0-a768
>  -00aa006e0529;;RS)(OA;;RP;bc0ac240-79a9-11d0-9020-00c04fc2d4cf;;RS)(A;;RC;;;A
>  U)(OA;;RP;59ba2f42-79a2-11d0-9020-00c04fc2d3cf;;AU)(OA;;RP;77b5b886-944a-11d1
>  -aebd-0000f80367c1;;AU)(OA;;RP;e45795b3-9455-11d1-aebd-0000f80367c1;;AU)(OA;;
>  RP;e48d0154-bcf8-11d1-8702-00c04fb96050;;AU)(OA;;CR;ab721a53-1e2f-11d0-9819-0
>  0aa0040529b;;WD)(OA;;RP;5f202010-79a5-11d0-9020-00c04fc2d4cf;;RS)(OA;;RPWP;bf
>  967a7f-0de6-11d0-a285-00aa003049e2;;CA)(OA;;RP;46a9b11d-60ae-405a-b7e8-ff8a58
>  d456d2;;S-1-5-32-560)(OA;;RPWP;6db69a1c-9422-11d1-aebd-0000f80367c1;;S-1-5-32
>  -561)(OA;;RPWP;5805bc62-bdc9-4428-a5e2-856a0f4c185e;;S-1-5-32-561)(OA;CIIOID;
>  RP;4c164200-20c0-11d0-a768-00aa006e0529;4828cc14-1437-45bc-9b07-ad6f015e5f28;
>  RU)(OA;CIID;RP;4c164200-20c0-11d0-a768-00aa006e0529;bf967aba-0de6-11d0-a285-0
>  0aa003049e2;RU)(OA;CIIOID;RP;5f202010-79a5-11d0-9020-00c04fc2d4cf;4828cc14-14
>  37-45bc-9b07-ad6f015e5f28;RU)(OA;CIID;RP;5f202010-79a5-11d0-9020-00c04fc2d4cf
>  ;bf967aba-0de6-11d0-a285-00aa003049e2;RU)(OA;CIIOID;RP;bc0ac240-79a9-11d0-902
>  0-00c04fc2d4cf;4828cc14-1437-45bc-9b07-ad6f015e5f28;RU)(OA;CIID;RP;bc0ac240-7
>  9a9-11d0-9020-00c04fc2d4cf;bf967aba-0de6-11d0-a285-00aa003049e2;RU)(OA;CIIOID
>  ;RP;59ba2f42-79a2-11d0-9020-00c04fc2d3cf;4828cc14-1437-45bc-9b07-ad6f015e5f28
>  ;RU)(OA;CIID;RP;59ba2f42-79a2-11d0-9020-00c04fc2d3cf;bf967aba-0de6-11d0-a285-
>  00aa003049e2;RU)(OA;CIIOID;RP;037088f8-0ae1-11d2-b422-00a0c968f939;4828cc14-1
>  437-45bc-9b07-ad6f015e5f28;RU)(OA;CIID;RP;037088f8-0ae1-11d2-b422-00a0c968f93
>  9;bf967aba-0de6-11d0-a285-00aa003049e2;RU)(OA;CIIOID;RP;b7c69e6d-2cc7-11d2-85
>  4e-00a0c983f608;bf967a86-0de6-11d0-a285-00aa003049e2;ED)(OA;CIIOID;RP;b7c69e6
>  d-2cc7-11d2-854e-00a0c983f608;bf967a9c-0de6-11d0-a285-00aa003049e2;ED)(OA;CII
>  D;RP;b7c69e6d-2cc7-11d2-854e-00a0c983f608;bf967aba-0de6-11d0-a285-00aa003049e
>  2;ED)(OA;CIIOID;RPLCLORC;;4828cc14-1437-45bc-9b07-ad6f015e5f28;RU)(OA;CIIOID;
>  RPLCLORC;;bf967a9c-0de6-11d0-a285-00aa003049e2;RU)(OA;CIID;RPLCLORC;;bf967aba
>  -0de6-11d0-a285-00aa003049e2;RU)(OA;CIID;RPWPCR;91e647de-d96f-4b70-9557-d63ff
>  4f3ccd8;;PS)(A;CIID;RPWPCRCCDCLCLORCWOWDSDDTSW;;;EA)(A;CIID;LC;;;RU)(A;CIID;R
>  PWPCRCCLCLORCWOWDSDSW;;;BA)S:AI(OU;CIIOIDSA;WP;f30e3bbe-9ff0-11d1-b603-0000f8
>  0367c1;bf967aa5-0de6-11d0-a285-00aa003049e2;WD)(OU;CIIOIDSA;WP;f30e3bbf-9ff0-
>  11d1-b603-0000f80367c1;bf967aa5-0de6-11d0-a285-00aa003049e2;WD)
> 

Yours matches mine, so that isn't a problem ;-)

You can (if you so wish) now find out what each ACE means, see here:

https://docs.microsoft.com/en-gb/windows/desktop/SecAuthZ/ace-strings

The ACE's are the parts between braces, e.g. 
(A;;RPWPCRCCDCLCLORCWOWDSDDTSW;;;DA)

That allows Domain Admins to do just about anything.

Rowland

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