samba - Mar 2017 - "a misconfigured DNS zone" (was: Re: Provision new domain keeping users and passwords)

Hello,

I try to add a new dc to my domain, but the sysadmin installed the
main dc left misconfigured dns zones that I can not remove.

¿Is it possible to provision the domain again using new samba as main
dc Keeping users and passwords Of the previous dc?
The current main dc runs samba 4.4.

Best regards,

Santiago.









-- 
Santiago Londoño Mejía
Analista de Infraestructura
t. (574) 605 25 23 ext. 1232
m. (57) 3148332567
Medellín | Carrera 50  C #10 Sur  80
Bogotá | Medellín | Cali
www.pragma.com.co

-- 


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Está prohibida su retención, grabación, utilización o divulgación con cualquier
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Este mensaje ha sido sometido a programas antivirus. No obstante, PRAGMA S.A. no
asume ninguna responsabilidad por eventuales daños generados por el recibo y uso
de este material, siendo responsabilidad del destinatario verificar con sus
propios medios la existencia de virus u otros defectos.

Las opiniones, conclusiones y otra información contenida en este correo no
relacionadas con el negocio oficial de PRAGMA S.A., deben entenderse como
personales y de ninguna manera son avaladas por la Compañía.

27.03.2017 22:48, Santiago Londoño Mejía via samba
пишет:
> Hello,
>
> I try to add a new dc to my domain, but the sysadmin installed the
> main dc left misconfigured dns zones that I can not remove.
>
> ¿Is it possible to provision the domain again using new samba as main
> dc Keeping users and passwords Of the previous dc?
> The current main dc runs samba 4.4.
I am also interested in this task, I have 4.1 old (two) DC with errors 
in dns zones (undeletable items) and planning upgrade to 4.5 or 4.6 .


-- 
Mike Lykov, system administrator

I was able to do this by exporting and importing users (including
passwords) with the pdbedit samba utility.

Look at this:
Http://serverfault.com/questions/675938/migrate-samba-users-to-new-server
Maybe you need to change the passdb backend

2017-03-28 2:49 GMT-03:00 Mike Lykov via samba <samba at lists.samba.org>:
> 27.03.2017 22:48, Santiago Londoño Mejía via samba пишет:
>
>> Hello,
>>
>> I try to add a new dc to my domain, but the sysadmin installed the
>> main dc left misconfigured dns zones that I can not remove.
>>
>> ¿Is it possible to provision the domain again using new samba as main
>> dc Keeping users and passwords Of the previous dc?
>> The current main dc runs samba 4.4.
>>
>
> I am also interested in this task, I have 4.1 old (two) DC with errors in
> dns zones (undeletable items) and planning upgrade to 4.5 or 4.6 .
>
>
> --
> Mike Lykov, system administrator
>
>
> --
> To unsubscribe from this list go to the following URL and read the
> instructions:  https://lists.samba.org/mailman/options/samba
>

Hai Mike, 

Are you running samba internal DNS or bind9_DLZ. 

In your case, can you give an example of "undeletable" item?
And did you check the rights on the dns object before trying to remove it. 


Greetz, 

Louis

Hi Santiago,

Same for you? 
Are you running samba internal DNS or bind9_DLZ? 

Can you explain a bit more about this? 


I know the sitiuantion to have problems with zones, and i may know a way to get
around it.
At least i did fix something like this about 2 years ago with samba 4.1.x and
bind9_dlz.


Greetz, 

Louis

Hai Santiago,

 

Your welkom, i hope i can help you out. 

 

Post my your bind9 configuration, you can anonimize it if needed, 

but dont remove any lines from it. 

 

And i need a snap of the log when bind is starting up. 

Like this one : 

Mar 29 16:42:58 dc1 named[21921]: starting BIND 9.9.5-9+deb8u10-Debian -f -u
bind

Mar 29 16:42:58 dc1 named[21921]: built with '?pr.... etc. .  

Mar 29 16:42:58 dc1 named[21921]: ---bla bla.....

..... and from this point is what i really want. 

 

Mar 29 16:42:58 dc1 named[21921]: using up to 4096 sockets

Mar 29 16:42:58 dc1 named[21921]: loading configuration from
'/etc/bind/named.conf'

Mar 29 16:42:58 dc1 named[21921]: reading built-in trusted keys from file
'/etc/bind/bind.keys'

Mar 29 16:42:58 dc1 named[21921]: using default UDP/IPv4 port range: [1024,
65535]

Mar 29 16:42:58 dc1 named[21921]: using default UDP/IPv6 port range: [1024,
65535]

Mar 29 16:42:58 dc1 named[21921]: listening on IPv4 interface lo, 127.0.0.1#53

Mar 29 16:42:58 dc1 named[21921]: listening on IPv4 interface eth0,
192.168.1.1#53

Mar 29 16:42:58 dc1 named[21921]: generating session key for dynamic DNS

Mar 29 16:42:58 dc1 named[21921]: sizing zone task pool based on 5 zones

Mar 29 16:42:58 dc1 named[21921]: Loading 'AD DNS Zone' using driver
dlopen

Mar 29 16:42:58 dc1 named[21921]: samba_dlz: started for DN
DC=officemain,DC=domain,DC=tld

Mar 29 16:42:58 dc1 named[21921]: samba_dlz: starting configure

Mar 29 16:42:58 dc1 named[21921]: samba_dlz: configured writeable zone
'1.168.192.in-addr.arpa'

Mar 29 16:42:58 dc1 named[21921]: samba_dlz: configured writeable zone
'0.1.10.in-addr.arpa'

Mar 29 16:42:58 dc1 named[21921]: samba_dlz: configured writeable zone
'1.2.10.in-addr.arpa'

Mar 29 16:42:58 dc1 named[21921]: samba_dlz: configured writeable zone
'2.3.10.in-addr.arpa'

Mar 29 16:42:58 dc1 named[21921]: samba_dlz: configured writeable zone
'3.4.10.in-addr.arpa'

Mar 29 16:42:58 dc1 named[21921]: samba_dlz: configured writeable zone
'4.5.10.in-addr.arpa'

Mar 29 16:42:58 dc1 named[21921]: samba_dlz: configured writeable zone
'officemain.domain.tld'

Mar 29 16:42:58 dc1 named[21921]: samba_dlz: configured writeable zone
'office1.domain.tld'

Mar 29 16:42:58 dc1 named[21921]: samba_dlz: configured writeable zone
'office2.domain.tld'

Mar 29 16:42:58 dc1 named[21921]: samba_dlz: configured writeable zone
'office3.domain.tld'

Mar 29 16:42:58 dc1 named[21921]: samba_dlz: configured writeable zone
'office4.domain.tld'

Mar 29 16:42:58 dc1 named[21921]: samba_dlz: configured writeable zone
'office5.domain.tld'

Mar 29 16:42:58 dc1 named[21921]: samba_dlz: configured writeable zone
'domain.tld'

Mar 29 16:42:58 dc1 named[21921]: samba_dlz: configured writeable zone
'_msdcs.officemain.domain.tld'

Mar 29 16:42:58 dc1 named[21921]: set up managed keys zone for view _default,
file 'managed-keys.bind'

Mar 29 16:42:58 dc1 named[21921]: command channel listening on 127.0.0.1#953

Mar 29 16:42:58 dc1 named[21921]: managed-keys-zone: loaded serial 715

Mar 29 16:42:58 dc1 named[21921]: zone 0.in-addr.arpa/IN: loaded serial 1

Mar 29 16:42:58 dc1 named[21921]: zone localhost/IN: loaded serial 2

Mar 29 16:42:58 dc1 named[21921]: zone 127.in-addr.arpa/IN: loaded serial 1

Mar 29 16:42:58 dc1 named[21921]: zone 255.in-addr.arpa/IN: loaded serial 1

Mar 29 16:42:58 dc1 named[21921]: all zones loaded

Mar 29 16:42:58 dc1 named[21921]: running

 

 
> -----Oorspronkelijk bericht-----
> Van: Santiago Londoño Mejía [mailto:santiago.londono at pragma.com.co]
> Verzonden: woensdag 29 maart 2017 16:33
> Aan: L.P.H. van Belle
> Onderwerp: Re: [Samba] Provision new domain keeping users and passwords
> (Santiago)
> 
> Hello,
> backend: bind9_DLZ
> 
> deleting  zone WASPRUEBAS.PROTECCION.COM.CO
> 
> ./samba-tool dns zonedelete neptuno waspruebas.proteccion.com.co
> ERROR(runtime): uncaught exception - (9717,
> 'WERR_DNS_ERROR_DS_UNAVAILABLE')
>   File "/usr/local/samba/lib64/python2.7/site-
> packages/samba/netcmd/__init__.py",
> line 175, in _run
>     return self.run(*args, **kwargs)
>   File "/usr/local/samba/lib64/python2.7/site-
> packages/samba/netcmd/dns.py",
> line 925, in run
>     None)
> 
> Thank you very much for your response
> Best regards,
> 
> Santiago.
> 
> 
> 
> 
> 
> 
> 
> 
> 2017-03-29 9:17 GMT-05:00, L.P.H. van Belle via samba
> <samba at lists.samba.org>:
> > Hi Santiago,
> >
> > Same for you?
> > Are you running samba internal DNS or bind9_DLZ?
> >
> > Can you explain a bit more about this?
> >
> >
> > I know the sitiuantion to have problems with zones, and i may know a
way
> to
> > get around it.
> > At least i did fix something like this about 2 years ago with samba
> 4.1.x
> > and bind9_dlz.
> >
> >
> > Greetz,
> >
> > Louis
> >
> >
> >
> > --
> > To unsubscribe from this list go to the following URL and read the
> > instructions:  https://lists.samba.org/mailman/options/samba
> >
> 
> 
> --
> Santiago Londoño Mejía
> Analista de Infraestructura
> t. (574) 605 25 23 ext. 1232
> m. (57) 3148332567
> Medellín | Carrera 50  C #10 Sur  80
> Bogotá | Medellín | Cali
> www.pragma.com.co
> 
> --
> 
> 
> Este mensaje es confidencial. Puede contener información privilegiada que
> pertenece a PRAGMA S.A. y/o a sus clientes, contratistas, directores,
> empleados y asesores, por tanto no debe ser usado ni divulgado por
> personas distintas a su destinatario. Si obtiene este mensaje por error,
> equivocación u omisión, por favor bórrelo y avise al remitente.
> 
> Está prohibida su retención, grabación, utilización o divulgación con
> cualquier propósito.
> 
> Este mensaje ha sido sometido a programas antivirus. No obstante, PRAGMA
> S.A. no asume ninguna responsabilidad por eventuales daños generados por
> el recibo y uso de este material, siendo responsabilidad del destinatario
> verificar con sus propios medios la existencia de virus u otros defectos.
> 
> Las opiniones, conclusiones y otra información contenida en este correo no
> relacionadas con el negocio oficial de PRAGMA S.A., deben entenderse como
> personales y de ninguna manera son avaladas por la Compañía.
 

On Mon, 2017-03-27 at 13:48 -0500, Santiago Londoño Mejía via samba
wrote:
> Hello,
> 
> I try to add a new dc to my domain, but the sysadmin installed the
> main dc left misconfigured dns zones that I can not remove.
Can you give some more details on this?  It would still seem less
disruptive to sort out whatever is wrong with DNS.
> ¿Is it possible to provision the domain again using new samba as main
> dc Keeping users and passwords Of the previous dc?
> The current main dc runs samba 4.4.
The closest we have is the 'upgradeprovision' tool, which tried to do
that:  create a new domain with most of the changed objects of an old
domain.  However it never made it to production quality, and isn't
something we emphsize. 

The challenge is that you really want to keep much more than the users
and passwords, you really also want to keep SIDs and preferably also
GUIDs. 

Andrew Bartlett
> Best regards,
> 
> Santiago.
> 
> 
> 
> 
> 
> 
> 
> 
> 
> -- 
> Santiago Londoño Mejía
> Analista de Infraestructura
> t. (574) 605 25 23 ext. 1232
> m. (57) 3148332567
> Medellín | Carrera 50  C #10 Sur  80
> Bogotá | Medellín | Cali
> www.pragma.com.co
> 
> -- 
> 
> 
> Este mensaje es confidencial. Puede contener información privilegiada
> que pertenece a PRAGMA S.A. y/o a sus clientes, contratistas,
> directores, empleados y asesores, por tanto no debe ser usado ni
> divulgado por personas distintas a su destinatario. Si obtiene este
> mensaje por error, equivocación u omisión, por favor bórrelo y avise
> al remitente.
> 
> Está prohibida su retención, grabación, utilización o divulgación con
> cualquier propósito.
> 
> Este mensaje ha sido sometido a programas antivirus. No obstante,
> PRAGMA S.A. no asume ninguna responsabilidad por eventuales daños
> generados por el recibo y uso de este material, siendo
> responsabilidad del destinatario verificar con sus propios medios la
> existencia de virus u otros defectos.
> 
> Las opiniones, conclusiones y otra información contenida en este
> correo no relacionadas con el negocio oficial de PRAGMA S.A., deben
> entenderse como personales y de ninguna manera son avaladas por la
> Compañía.
> 
> 
-- 
Andrew Bartlett                       http://samba.org/~abartlet/
Authentication Developer, Samba Team  http://samba.org
Samba Developer, Catalyst IT          http://catalyst.net.nz/services/samba

Hello,
named log:
Mar 29 10:31:00 neptuno named[32096]: sizing zone task pool based on 6 zones
Mar 29 10:31:00 neptuno named[32096]: Loading 'AD DNS Zone' using driver
dlopen
Mar 29 10:31:00 neptuno named[32096]: samba_dlz: started for DN
DC=pragma,DC=com,DC=co
Mar 29 10:31:00 neptuno named[32096]: samba_dlz: starting configure
Mar 29 10:31:00 neptuno named[32096]: samba_dlz: configured writeable
zone 'waspruebas.proteccion.com.co'
Mar 29 10:31:00 neptuno named[32096]: samba_dlz: configured writeable
zone 'segdllo02.suranet.com'
Mar 29 10:31:00 neptuno named[32096]: zone dbmed04.pragma.com.co/NONE:
has no NS records
Mar 29 10:31:00 neptuno named[32096]: samba_dlz: Failed to configure
zone 'dbmed04.pragma.com.co'
Mar 29 10:31:00 neptuno named[32096]: loading configuration: bad zone
Mar 29 10:31:00 neptuno named[32096]: exiting (due to fatal error)

When I try to delete the zone get the following error:
ERROR(runtime): uncaught exception - (9717,
'WERR_DNS_ERROR_DS_UNAVAILABLE')
  File
"/usr/local/samba/lib64/python2.7/site-packages/samba/netcmd/__init__.py",
line 175, in _run
    return self.run(*args, **kwargs)
  File
"/usr/local/samba/lib64/python2.7/site-packages/samba/netcmd/dns.py",
line 925, in run
    None)

Thank you very much for your reply.

Best regards,

Santiago.


2017-03-29 13:42 GMT-05:00, Andrew Bartlett via samba <samba at
lists.samba.org>:
> On Mon, 2017-03-27 at 13:48 -0500, Santiago Londoño Mejía via samba
> wrote:
>> Hello,
>>
>> I try to add a new dc to my domain, but the sysadmin installed the
>> main dc left misconfigured dns zones that I can not remove.
>
> Can you give some more details on this?  It would still seem less
> disruptive to sort out whatever is wrong with DNS.
>
>> ¿Is it possible to provision the domain again using new samba as main
>> dc Keeping users and passwords Of the previous dc?
>> The current main dc runs samba 4.4.
>
> The closest we have is the 'upgradeprovision' tool, which tried to
do
> that:  create a new domain with most of the changed objects of an old
> domain.  However it never made it to production quality, and isn't
> something we emphsize.
>
> The challenge is that you really want to keep much more than the users
> and passwords, you really also want to keep SIDs and preferably also
> GUIDs.
>
> Andrew Bartlett
>
>> Best regards,
>>
>> Santiago.
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> --
>> Santiago Londoño Mejía
>> Analista de Infraestructura
>> t. (574) 605 25 23 ext. 1232
>> m. (57) 3148332567
>> Medellín | Carrera 50  C #10 Sur  80
>> Bogotá | Medellín | Cali
>> www.pragma.com.co
>>
>> --
>>
>>
>> Este mensaje es confidencial. Puede contener información privilegiada
>> que pertenece a PRAGMA S.A. y/o a sus clientes, contratistas,
>> directores, empleados y asesores, por tanto no debe ser usado ni
>> divulgado por personas distintas a su destinatario. Si obtiene este
>> mensaje por error, equivocación u omisión, por favor bórrelo y avise
>> al remitente.
>>
>> Está prohibida su retención, grabación, utilización o divulgación con
>> cualquier propósito.
>>
>> Este mensaje ha sido sometido a programas antivirus. No obstante,
>> PRAGMA S.A. no asume ninguna responsabilidad por eventuales daños
>> generados por el recibo y uso de este material, siendo
>> responsabilidad del destinatario verificar con sus propios medios la
>> existencia de virus u otros defectos.
>>
>> Las opiniones, conclusiones y otra información contenida en este
>> correo no relacionadas con el negocio oficial de PRAGMA S.A., deben
>> entenderse como personales y de ninguna manera son avaladas por la
>> Compañía.
>>
>>
> --
> Andrew Bartlett                       http://samba.org/~abartlet/
> Authentication Developer, Samba Team  http://samba.org
> Samba Developer, Catalyst IT          http://catalyst.net.nz/services/samba
>
>
> --
> To unsubscribe from this list go to the following URL and read the
> instructions:  https://lists.samba.org/mailman/options/samba
>

-- 
Santiago Londoño Mejía
Analista de Infraestructura
t. (574) 605 25 23 ext. 1232
m. (57) 3148332567
Medellín | Carrera 50  C #10 Sur  80
Bogotá | Medellín | Cali
www.pragma.com.co

-- 


Este mensaje es confidencial. Puede contener información privilegiada que
pertenece a PRAGMA S.A. y/o a sus clientes, contratistas, directores, empleados
y asesores, por tanto no debe ser usado ni divulgado por personas distintas a su
destinatario. Si obtiene este mensaje por error, equivocación u omisión, por
favor bórrelo y avise al remitente.

Está prohibida su retención, grabación, utilización o divulgación con cualquier
propósito.

Este mensaje ha sido sometido a programas antivirus. No obstante, PRAGMA S.A. no
asume ninguna responsabilidad por eventuales daños generados por el recibo y uso
de este material, siendo responsabilidad del destinatario verificar con sus
propios medios la existencia de virus u otros defectos.

Las opiniones, conclusiones y otra información contenida en este correo no
relacionadas con el negocio oficial de PRAGMA S.A., deben entenderse como
personales y de ninguna manera son avaladas por la Compañía.

29.03.2017 18:13, L.P.H. van Belle via samba пишет:
> Hai Mike,
>
> Are you running samba internal DNS or bind9_DLZ.
internal
> In your case, can you give an example of "undeletable" item?
> And did you check the rights on the dns object before trying to remove it.
# net rpc group members "Domain Admins" -U lmy
Enter lmy's password:
SAMGES\Administrator
SAMGES\lmy
SAMGES\bee

For "Domain Admins" to the record rights is "Full control"
(i don't know
how to show object rights in console, I using DNS MMC from RSAT)

AD domain zone is dc.samges.ru
and I have a hand-created (via RSAT - DNS - create new zone) zone samges.ru.

Any object in this zone is undeletable.

# samba-tool dns delete ad51.samges.ru samges.ru vjud A 213.156.210.216 
-U lmy
GENSEC backend 'gssapi_spnego' registered
GENSEC backend 'gssapi_krb5' registered
GENSEC backend 'gssapi_krb5_sasl' registered
GENSEC backend 'schannel' registered
GENSEC backend 'spnego' registered
GENSEC backend 'ntlmssp' registered
GENSEC backend 'krb5' registered
GENSEC backend 'fake_gssapi_krb5' registered
Using binding ncacn_ip_tcp:ad51.samges.ru[,sign]
Password for [SAMGES\lmy]:
ERROR(runtime): uncaught exception - (1383, 'WERR_INTERNAL_DB_ERROR')
   File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py", 
line 175, in _run
     return self.run(*args, **kwargs)
   File "/usr/lib/python2.7/dist-packages/samba/netcmd/dns.py", line 
1184, in run
     del_rec_buf)


But after creating zone (a month later) we accidentally delete some 
machine accounts, and after trying to restore it in LDAP we have a 
errors in DomainDNSZones like this:

samba-tool dbcheck --fix
(.... many similar errors ...)

---------------------------
ERROR: parent object not found for 
DC=SAMG62\0ADEL:ccc70e60-4086-49b0-86f0-e5b4af86666d,CN=Deleted 
Objects,DC=DomainDnsZones,DC=dc,DC=samges,DC=ru
Move object 
DC=SAMG62\0ADEL:ccc70e60-4086-49b0-86f0-e5b4af86666d,CN=Deleted 
Objects,DC=DomainDnsZones,DC=dc,DC=samg
es,DC=ru into LostAndFound? [YES]

Renamed object 
DC=SAMG62\0ADEL:ccc70e60-4086-49b0-86f0-e5b4af86666d,CN=Deleted 
Objects,DC=DomainDnsZones,DC=dc,DC=s
amges,DC=ru into lostAndFound at 
DC=SAMG62\0ADEL:ccc70e60-4086-49b0-86f0-e5b4af86666d,CN=LostAndFound,DC=DomainDnsZones,DC=dc,DC=samges,DC=ru

Set lastKnownParent on lostAndFound object at 
DC=SAMG62\0ADEL:ccc70e60-4086-49b0-86f0-e5b4af86666d,CN=LostAndFound,
DC=DomainDnsZones,DC=dc,DC=samges,DC=ru

ERROR: missing GUID component for lastKnownParent in object 
DC=SAMG146\0ADEL:c1531dae-eb09-4d2b-8270-4e91b73a6cad,C
N=LostAndFound,DC=DomainDnsZones,DC=dc,DC=samges,DC=ru - CN=Deleted 
Objects,DC=DomainDnsZones,DC=dc,DC=samges,DC=ru
unable to find object for DN CN=Deleted 
Objects,DC=DomainDnsZones,DC=dc,DC=samges,DC=ru - (No such Base DN: 
CN=Deleted Objects,DC=DomainDnsZones,DC=dc,DC=samges,DC=ru)

Not removing dangling forward link
Segmentation fault
-------------------------------



-- 
Mike Lykov, system administrator