AW: MS AD 2008R2 and bind

2012-01-04 Thread Melbinger Christian
Hi

The only  updates (according to messages log) are deletes.
view default: updating zone 'internal.wienit.at/IN': deleting rrset at 
'DC1.internal.wienit.at' 
There are no  records for the DC. And it's never creating any, just 
deleting them once a day.

And after the delete the DC continues to update A, CNAME and SRV records... I 
don't think that's the problem

thanks

---
Ing. Christian Melbinger
Netzwerk  Security

WienIT EDV Dienstleistungsgesellschaft mbH  Co KG
A-1030 Wien, Thomas-Klestil-Platz 6
tel: +43 (1) 90405 47188
fax: +43 (1) 90405 88 47188
mailto:christian.melbin...@wienit.at


-Ursprüngliche Nachricht-
Von: bind-users-bounces+christian.melbinger=wienit...@lists.isc.org 
[mailto:bind-users-bounces+christian.melbinger=wienit...@lists.isc.org] Im 
Auftrag von Vbvbrj
Gesendet: Dienstag, 03. Jänner 2012 20:49
An: Bind-User support
Betreff: Re: MS AD 2008R2 and bind

There is a bug in Windows 2008 R2 which prevents correct registration to 
BIND dns servers. See http://support.microsoft.com/kb/2002490 for the 
hotfix to apply. Unfortunately, this hotfox still does not correct the 
behavior. Windows 2008 R2 registers the  record first. This record 
is registered correctly on BIND, but the response from BIND is 
interpreted by the windows incorrectly, so it stops registering the 
following records, like the A record. However, the DCs with this patch 
successfully registers all records related to the AD.
This is a strange behavior.
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WienIT EDV Dienstleistungsgesellschaft mbH  Co KG, A-1030 Wien, 
Thomas-Klestil-Platz 6,
FN 255974h, Handelsgericht Wien, DVR: 2109667, UID-Nr. ATU61260824
Persönlich haftender Gesellschafter:
WienIT EDV Dienstleistungsgesellschaft mbH, A-1030 Wien, Thomas-Klestil-Platz 6,
FN 255649f, Handelsgericht Wien, UID-Nr. ATU61296118
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MS AD 2008R2 and bind

2012-01-03 Thread Melbinger Christian
Hi

My company moved to a 2008R2 Domain Controller environment. Now I see the 
following message in the windows log:

Title: This domain controller must register its correct IP addresses with the 
DNS server
Severity: Error
Category: Configuration
Issue: The Domain Name System (DNS) host resource records for this domain 
controller's fully qualified domain name currently map to the IP addresses that 
do not belong to this domain controller. The invalid IP addresses are 10.1.1.1; 
10.2.2.2.
Impact: Other member computers and domain controllers in the domain or forest 
might not be able to locate this domain controller. This domain controller will 
not be able to provide a full suite of services.
Resolution: Ensure that the DNS Client service on this domain controller is 
configured and able to register valid host resource records with an 
authoritative DNS server for the domain.
More information about this best practice and detailed resolution procedures: 
http://go.microsoft.com/fwlink/?LinkId=131229


All Domain Controllers have zone updates rights on the master dns server, and 
according to the logfile updating zones works.
My DNS-Servers are running BIND 9.7.3-P3.



So this is presumably not a problem of the bind servers themselves, but still, 
does anyone have an idea how to get rid of the error messages?
Anyone know the checkbox to unset? I didn't find one...

With regards
Christian Melbinger


---
Ing. Christian Melbinger
Netzwerk  Security

WienIT EDV Dienstleistungsgesellschaft mbH  Co KG
A-1030 Wien, Thomas-Klestil-Platz 6
tel: +43 (1) 90405 47188
fax: +43 (1) 90405 88 47188
mailto:christian.melbin...@wienit.at




WienIT EDV Dienstleistungsgesellschaft mbH  Co KG, A-1030 Wien, 
Thomas-Klestil-Platz 6,
FN 255974h, Handelsgericht Wien, DVR: 2109667, UID-Nr. ATU61260824
Persönlich haftender Gesellschafter:
WienIT EDV Dienstleistungsgesellschaft mbH, A-1030 Wien, Thomas-Klestil-Platz 6,
FN 255649f, Handelsgericht Wien, UID-Nr. ATU61296118
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Re: MS AD 2008R2 and bind

2012-01-03 Thread Carsten Strotmann (private)
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

Hello Christian,

On 1/3/12 11:00 AM, Melbinger Christian wrote:
 
 So this is presumably not a problem of the bind servers themselves,
 but still, does anyone have an idea how to get rid of the error
 messages?
 
 Anyone know the checkbox to unset? I didn?t find one?

from the error message you've seeing, the problem is that the domain
controller has already found DNS entries for itself in the DNS, but
the entries are pointing to a different IP Address than the domain
controller has.

The domain controller will not overwrite the existing entries. You
have to remove the wrong, stale entries and after that the domain
controller should be able to register (update) the address records
with the correct IP addresses. You can force this with a reboot or
with ipconfig /registerdns from the commandline.

The old IP addresses might be leftovers from a test, and have not been
properly removed when the IP addresses of the domain controller has
been changed.

Best regards

Carsten Strotmann

-BEGIN PGP SIGNATURE-
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Comment: GPGTools - http://gpgtools.org
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/

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yHAAn2N59KR3k14fbA+WG8AYjOBpjBzl
=uRxM
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AW: MS AD 2008R2 and bind

2012-01-03 Thread Melbinger Christian
Hello

Thanks for your answer, but unfortunately that's not the case.
When I do a nslookup like nslookup internal.wienit.at, I get back the IPs of 
the DCs, speaking
Addresses:  10.4.4.4, 10.5.5.5

The error message
The invalid IP addresses are 10.1.1.1; 10.2.2.2.
is pointing towards the dns-servers. (bind and linux, no windows there)


I also had an old dns server running on 10.3.3.3, which was included in the 
error message too. I shut it down but the ip only got removed from the error 
once I deleted the NS Record. (yeah forgot to do that)

any ideas?



---
Ing. Christian Melbinger
Netzwerk  Security

WienIT EDV Dienstleistungsgesellschaft mbH  Co KG
A-1030 Wien, Thomas-Klestil-Platz 6
tel: +43 (1) 90405 47188
fax: +43 (1) 90405 88 47188
mailto:christian.melbin...@wienit.at


-Ursprüngliche Nachricht-
Von: Carsten Strotmann (private) [mailto:c...@strotmann.de] 
Gesendet: Dienstag, 03. Jänner 2012 13:07
An: Melbinger Christian
Cc: bind-users@lists.isc.org
Betreff: Re: MS AD 2008R2 and bind

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

Hello Christian,

On 1/3/12 11:00 AM, Melbinger Christian wrote:
 
 So this is presumably not a problem of the bind servers themselves,
 but still, does anyone have an idea how to get rid of the error
 messages?
 
 Anyone know the checkbox to unset? I didn?t find one?

from the error message you've seeing, the problem is that the domain
controller has already found DNS entries for itself in the DNS, but
the entries are pointing to a different IP Address than the domain
controller has.

The domain controller will not overwrite the existing entries. You
have to remove the wrong, stale entries and after that the domain
controller should be able to register (update) the address records
with the correct IP addresses. You can force this with a reboot or
with ipconfig /registerdns from the commandline.

The old IP addresses might be leftovers from a test, and have not been
properly removed when the IP addresses of the domain controller has
been changed.

Best regards

Carsten Strotmann

-BEGIN PGP SIGNATURE-
Version: GnuPG/MacGPG2 v2.0.17 (Darwin)
Comment: GPGTools - http://gpgtools.org
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/

iEYEARECAAYFAk8C72MACgkQsUJ3c+pomYF23wCfUB8ziHkSkF3R1XTtVOUoU4SX
yHAAn2N59KR3k14fbA+WG8AYjOBpjBzl
=uRxM
-END PGP SIGNATURE-



Hi

My company moved to a 2008R2 Domain Controller environment. Now I see the 
following message in the windows log:

Title: This domain controller must register its correct IP addresses with the 
DNS server
Severity: Error
Category: Configuration
Issue: The Domain Name System (DNS) host resource records for this domain 
controller's fully qualified domain name currently map to the IP addresses that 
do not belong to this domain controller. The invalid IP addresses are 10.1.1.1; 
10.2.2.2.
Impact: Other member computers and domain controllers in the domain or forest 
might not be able to locate this domain controller. This domain controller will 
not be able to provide a full suite of services.
Resolution: Ensure that the DNS Client service on this domain controller is 
configured and able to register valid host resource records with an 
authoritative DNS server for the domain.
More information about this best practice and detailed resolution procedures: 
http://go.microsoft.com/fwlink/?LinkId=131229


All Domain Controllers have zone updates rights on the master dns server, and 
according to the logfile updating zones works.
My DNS-Servers are running BIND 9.7.3-P3.



So this is presumably not a problem of the bind servers themselves, but still, 
does anyone have an idea how to get rid of the error messages?
Anyone know the checkbox to unset? I didn't find one.

With regards
Christian Melbinger


---
Ing. Christian Melbinger
Netzwerk  Security

WienIT EDV Dienstleistungsgesellschaft mbH  Co KG
A-1030 Wien, Thomas-Klestil-Platz 6
tel: +43 (1) 90405 47188
fax: +43 (1) 90405 88 47188
mailto:christian.melbin...@wienit.at



WienIT EDV Dienstleistungsgesellschaft mbH  Co KG, A-1030 Wien, 
Thomas-Klestil-Platz 6,
FN 255974h, Handelsgericht Wien, DVR: 2109667, UID-Nr. ATU61260824
Persönlich haftender Gesellschafter:
WienIT EDV Dienstleistungsgesellschaft mbH, A-1030 Wien, Thomas-Klestil-Platz 6,
FN 255649f, Handelsgericht Wien, UID-Nr. ATU61296118
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Re: MS AD 2008R2 and bind

2012-01-03 Thread Will Lists
On Tue, Jan 3, 2012 at 4:00 AM, Melbinger Christian 
christian.melbin...@wienit.at wrote:

 Hi

 ** **

 My company moved to a 2008R2 Domain Controller environment. Now I see the
 following message in the windows log:

 ** **

 *Title*: This domain controller must register its correct IP addresses
 with the DNS server

 *Severity*: Error

 *Category*: Configuration

 *Issue*: The Domain Name System (DNS) host resource records for this
 domain controller's fully qualified domain name currently map to the IP
 addresses that do not belong to this domain controller. The invalid IP
 addresses are 10.1.1.1; 10.2.2.2.

 *Impact*: Other member computers and domain controllers in the domain or
 forest might not be able to locate this domain controller. This domain
 controller will not be able to provide a full suite of services.

 *Resolution*: Ensure that the DNS Client service on this domain
 controller is configured and able to register valid host resource records
 with an authoritative DNS server for the domain.

 More information about this best practice and detailed resolution
 procedures: http://go.microsoft.com/fwlink/?LinkId=131229

 ** **

 ** **

 All Domain Controllers have zone updates rights on the master dns server,
 and according to the logfile updating zones works.

 My DNS-Servers are running BIND 9.7.3-P3.

 ** **

 ** **

 ** **

 So this is presumably not a problem of the bind servers themselves, but
 still, does anyone have an idea how to get rid of the error messages?

 Anyone know the checkbox to unset? I didn’t find one…

 ** **

 With regards

 Christian Melbinger

 ** **

 ** **

 ---

 Ing. Christian Melbinger

 Netzwerk  Security

 ** **

 WienIT EDV Dienstleistungsgesellschaft mbH  Co KG

 A-1030 Wien, Thomas-Klestil-Platz 6

 tel: +43 (1) 90405 47188

 fax: +43 (1) 90405 88 47188

 mailto:christian.melbin...@wienit.at

 ** **

 
 WienIT EDV Dienstleistungsgesellschaft mbH  Co KG, A-1030 Wien,
 Thomas-Klestil-Platz 6,
 FN 255974h, Handelsgericht Wien, DVR: 2109667, UID-Nr. ATU61260824
 Persönlich haftender Gesellschafter:
 WienIT EDV Dienstleistungsgesellschaft mbH, A-1030 Wien,
 Thomas-Klestil-Platz 6,
 FN 255649f, Handelsgericht Wien, UID-Nr. ATU61296118

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 bind-users@lists.isc.org
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-- 

I'm just going to throw out a few ideas, not sure any or all of them will
get you in the right direction...but I  had significant issues with DCs and
dynamic updates following a migration from AD integrated DNS to BIND.


What A records map to those IP addresses listed (10.1.1.1, 10.2.2.2)?

Are there any same as zone records that point to your DC IPs?  (this is
common if  DNS is AD integrated)

Do you see in the Event Viewer on the DC that it
is successfully registering the A, PTR and SRV records?  (not sure what log
this is in, been a little while since I looked last).

I know you said it was the case, but your BIND config has one of the
following options set?
 - allow-update { address_match_list }; -- If the DC is pointing to the
master BIND server
 - allow-update-forwarding { address_match_list }; -- if the DC is
pointing to the slave BIND server

What happens if you issue the ipconfig /registerdns command from the DCs?


- Will
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Re: AW: MS AD 2008R2 and bind

2012-01-03 Thread root

The DC must not only be allow to update his A,  (if applicable) and PTR 
records, he must also be able to update his SRV and TXT records. Please add the 
DC to the ACL for allow-updates on the zone that corresponds to the AD 
Domain/Kerberos zone, and then confirm that it is working by restarting 
Netlogon service (necessary, because IPCONFIG /registerdns only updates A,  
(if applicable) and PTR records, while the former regenerates the SRV records, 
et al). 


Hope that helps,

 -DTK




Sent via BlackBerry from T-Mobile

-Original Message-
From: Melbinger Christian christian.melbin...@wienit.at
Sender: bind-users-bounces+root=nachtmaus...@lists.isc.orgDate: Tue, 3 Jan 2012 
13:47:30 
To: Carsten Strotmann (private)c...@strotmann.de
Cc: bind-users@lists.isc.orgbind-users@lists.isc.org
Subject: AW: MS AD 2008R2 and bind

Hello

Thanks for your answer, but unfortunately that's not the case.
When I do a nslookup like nslookup internal.wienit.at, I get back the IPs of 
the DCs, speaking
Addresses:  10.4.4.4, 10.5.5.5

The error message
The invalid IP addresses are 10.1.1.1; 10.2.2.2.
is pointing towards the dns-servers. (bind and linux, no windows there)


I also had an old dns server running on 10.3.3.3, which was included in the 
error message too. I shut it down but the ip only got removed from the error 
once I deleted the NS Record. (yeah forgot to do that)

any ideas?



---
Ing. Christian Melbinger
Netzwerk  Security

WienIT EDV Dienstleistungsgesellschaft mbH  Co KG
A-1030 Wien, Thomas-Klestil-Platz 6
tel: +43 (1) 90405 47188
fax: +43 (1) 90405 88 47188
mailto:christian.melbin...@wienit.at


-Ursprüngliche Nachricht-
Von: Carsten Strotmann (private) [mailto:c...@strotmann.de] 
Gesendet: Dienstag, 03. Jänner 2012 13:07
An: Melbinger Christian
Cc: bind-users@lists.isc.org
Betreff: Re: MS AD 2008R2 and bind

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

Hello Christian,

On 1/3/12 11:00 AM, Melbinger Christian wrote:
 
 So this is presumably not a problem of the bind servers themselves,
 but still, does anyone have an idea how to get rid of the error
 messages?
 
 Anyone know the checkbox to unset? I didn?t find one?

from the error message you've seeing, the problem is that the domain
controller has already found DNS entries for itself in the DNS, but
the entries are pointing to a different IP Address than the domain
controller has.

The domain controller will not overwrite the existing entries. You
have to remove the wrong, stale entries and after that the domain
controller should be able to register (update) the address records
with the correct IP addresses. You can force this with a reboot or
with ipconfig /registerdns from the commandline.

The old IP addresses might be leftovers from a test, and have not been
properly removed when the IP addresses of the domain controller has
been changed.

Best regards

Carsten Strotmann

-BEGIN PGP SIGNATURE-
Version: GnuPG/MacGPG2 v2.0.17 (Darwin)
Comment: GPGTools - http://gpgtools.org
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/

iEYEARECAAYFAk8C72MACgkQsUJ3c+pomYF23wCfUB8ziHkSkF3R1XTtVOUoU4SX
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=uRxM
-END PGP SIGNATURE-



Hi

My company moved to a 2008R2 Domain Controller environment. Now I see the 
following message in the windows log:

Title: This domain controller must register its correct IP addresses with the 
DNS server
Severity: Error
Category: Configuration
Issue: The Domain Name System (DNS) host resource records for this domain 
controller's fully qualified domain name currently map to the IP addresses that 
do not belong to this domain controller. The invalid IP addresses are 10.1.1.1; 
10.2.2.2.
Impact: Other member computers and domain controllers in the domain or forest 
might not be able to locate this domain controller. This domain controller will 
not be able to provide a full suite of services.
Resolution: Ensure that the DNS Client service on this domain controller is 
configured and able to register valid host resource records with an 
authoritative DNS server for the domain.
More information about this best practice and detailed resolution procedures: 
http://go.microsoft.com/fwlink/?LinkId=131229


All Domain Controllers have zone updates rights on the master dns server, and 
according to the logfile updating zones works.
My DNS-Servers are running BIND 9.7.3-P3.



So this is presumably not a problem of the bind servers themselves, but still, 
does anyone have an idea how to get rid of the error messages?
Anyone know the checkbox to unset? I didn't find one.

With regards
Christian Melbinger


---
Ing. Christian Melbinger
Netzwerk  Security

WienIT EDV Dienstleistungsgesellschaft mbH  Co KG
A-1030 Wien, Thomas-Klestil-Platz 6
tel: +43 (1) 90405 47188
fax: +43 (1) 90405 88 47188
mailto:christian.melbin...@wienit.at



WienIT EDV Dienstleistungsgesellschaft mbH  Co KG

AW: MS AD 2008R2 and bind

2012-01-03 Thread Melbinger Christian
What A records map to those IP addresses listed (10.1.1.1, 10.2.2.2)?
only their own name, nothing more

Are there any same as zone records that point to your DC IPs?  (this is 
common if  DNS is AD integrated)
yes
internal.wienit.at is a round robbin to all DC IPs
gc._msdcs.internal.wienit.at is also a round robbin to all DC IPs

I don't know if long time ago it was  AD integrated, but in the last few years 
it certainly was not.

Do you see in the Event Viewer on the DC that it is successfully registering 
the A, PTR and SRV records?  (not sure what log this is in, been a little 
while since I looked last).
yes that's working too, otherwise there would be a lot more errors
I even see every update in the messages log on the dns-server, all working

I know you said it was the case, but your BIND config has one of the following 
options set?
 - allow-update { address_match_list }; -- If the DC is pointing to the 
 master BIND server
 - allow-update-forwarding { address_match_list }; -- if the DC is pointing 
 to the slave BIND server
updates are working

What happens if you issue the ipconfig /registerdns command from the DCs?
I think I did that some time ago... the DC kicked all of its own Records and 
then put them back in...


---
Ing. Christian Melbinger
Netzwerk  Security

WienIT EDV Dienstleistungsgesellschaft mbH  Co KG
A-1030 Wien, Thomas-Klestil-Platz 6
tel: +43 (1) 90405 47188
fax: +43 (1) 90405 88 47188
mailto:christian.melbin...@wienit.at

Von: Will Lists [mailto:listsw...@gmail.com]
Gesendet: Dienstag, 03. Jänner 2012 14:07
An: bind-users@lists.isc.org
Cc: Melbinger Christian
Betreff: Re: MS AD 2008R2 and bind

On Tue, Jan 3, 2012 at 4:00 AM, Melbinger Christian 
christian.melbin...@wienit.atmailto:christian.melbin...@wienit.at wrote:
Hi

My company moved to a 2008R2 Domain Controller environment. Now I see the 
following message in the windows log:

Title: This domain controller must register its correct IP addresses with the 
DNS server
Severity: Error
Category: Configuration
Issue: The Domain Name System (DNS) host resource records for this domain 
controller's fully qualified domain name currently map to the IP addresses that 
do not belong to this domain controller. The invalid IP addresses are 10.1.1.1; 
10.2.2.2.
Impact: Other member computers and domain controllers in the domain or forest 
might not be able to locate this domain controller. This domain controller will 
not be able to provide a full suite of services.
Resolution: Ensure that the DNS Client service on this domain controller is 
configured and able to register valid host resource records with an 
authoritative DNS server for the domain.
More information about this best practice and detailed resolution procedures: 
http://go.microsoft.com/fwlink/?LinkId=131229


All Domain Controllers have zone updates rights on the master dns server, and 
according to the logfile updating zones works.
My DNS-Servers are running BIND 9.7.3-P3.



So this is presumably not a problem of the bind servers themselves, but still, 
does anyone have an idea how to get rid of the error messages?
Anyone know the checkbox to unset? I didn't find one...

With regards
Christian Melbinger


---
Ing. Christian Melbinger
Netzwerk  Security

WienIT EDV Dienstleistungsgesellschaft mbH  Co KG
A-1030 Wien, Thomas-Klestil-Platz 6
tel: +43 (1) 90405 47188tel:%2B43%20%281%29%2090405%2047188
fax: +43 (1) 90405 88 47188tel:%2B43%20%281%29%2090405%2088%2047188
mailto:christian.melbin...@wienit.atmailto:christian.melbin...@wienit.at


WienIT EDV Dienstleistungsgesellschaft mbH  Co KG, A-1030 Wien, 
Thomas-Klestil-Platz 6,
FN 255974h, Handelsgericht Wien, DVR: 2109667, UID-Nr. ATU61260824
Persönlich haftender Gesellschafter:
WienIT EDV Dienstleistungsgesellschaft mbH, A-1030 Wien, Thomas-Klestil-Platz 6,
FN 255649f, Handelsgericht Wien, UID-Nr. ATU61296118

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--

I'm just going to throw out a few ideas, not sure any or all of them will get 
you in the right direction...but I  had significant issues with DCs and dynamic 
updates following a migration from AD integrated DNS to BIND.


What A records map to those IP addresses listed (10.1.1.1, 10.2.2.2)?

Are there any same as zone records that point to your DC IPs?  (this is 
common if  DNS is AD integrated)

Do you see in the Event Viewer on the DC that it is successfully registering 
the A, PTR and SRV records?  (not sure what log this is in, been a little while 
since I looked last).

I know you said it was the case, but your BIND config has one of the following 
options set?
 - allow-update { address_match_list }; -- If the DC is pointing to the master 
BIND server

AW: AW: MS AD 2008R2 and bind

2012-01-03 Thread Melbinger Christian
According to syslog the DCs do update tons of records all the time... A, PTR, 
SRV.
I didn't regulate them. Their IPs are allowed to do any updates.

---
Ing. Christian Melbinger
Netzwerk  Security

WienIT EDV Dienstleistungsgesellschaft mbH  Co KG
A-1030 Wien, Thomas-Klestil-Platz 6
tel: +43 (1) 90405 47188
fax: +43 (1) 90405 88 47188
mailto:christian.melbin...@wienit.at


-Ursprüngliche Nachricht-
Von: r...@nachtmaus.us [mailto:r...@nachtmaus.us] 
Gesendet: Dienstag, 03. Jänner 2012 14:17
An: Melbinger Christian; bind-users-bounces+root=nachtmaus...@lists.isc.org; 
Carsten Strotmann (private)
Cc: bind-users@lists.isc.org
Betreff: Re: AW: MS AD 2008R2 and bind


The DC must not only be allow to update his A,  (if applicable) and PTR 
records, he must also be able to update his SRV and TXT records. Please add the 
DC to the ACL for allow-updates on the zone that corresponds to the AD 
Domain/Kerberos zone, and then confirm that it is working by restarting 
Netlogon service (necessary, because IPCONFIG /registerdns only updates A,  
(if applicable) and PTR records, while the former regenerates the SRV records, 
et al). 


Hope that helps,

 -DTK




Sent via BlackBerry from T-Mobile

-Original Message-
From: Melbinger Christian christian.melbin...@wienit.at
Sender: bind-users-bounces+root=nachtmaus...@lists.isc.orgDate: Tue, 3 Jan 2012 
13:47:30 
To: Carsten Strotmann (private)c...@strotmann.de
Cc: bind-users@lists.isc.orgbind-users@lists.isc.org
Subject: AW: MS AD 2008R2 and bind

Hello

Thanks for your answer, but unfortunately that's not the case.
When I do a nslookup like nslookup internal.wienit.at, I get back the IPs of 
the DCs, speaking
Addresses:  10.4.4.4, 10.5.5.5

The error message
The invalid IP addresses are 10.1.1.1; 10.2.2.2.
is pointing towards the dns-servers. (bind and linux, no windows there)


I also had an old dns server running on 10.3.3.3, which was included in the 
error message too. I shut it down but the ip only got removed from the error 
once I deleted the NS Record. (yeah forgot to do that)

any ideas?



---
Ing. Christian Melbinger
Netzwerk  Security

WienIT EDV Dienstleistungsgesellschaft mbH  Co KG
A-1030 Wien, Thomas-Klestil-Platz 6
tel: +43 (1) 90405 47188
fax: +43 (1) 90405 88 47188
mailto:christian.melbin...@wienit.at


-Ursprüngliche Nachricht-
Von: Carsten Strotmann (private) [mailto:c...@strotmann.de] 
Gesendet: Dienstag, 03. Jänner 2012 13:07
An: Melbinger Christian
Cc: bind-users@lists.isc.org
Betreff: Re: MS AD 2008R2 and bind

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Hash: SHA1

Hello Christian,

On 1/3/12 11:00 AM, Melbinger Christian wrote:
 
 So this is presumably not a problem of the bind servers themselves,
 but still, does anyone have an idea how to get rid of the error
 messages?
 
 Anyone know the checkbox to unset? I didn?t find one?

from the error message you've seeing, the problem is that the domain
controller has already found DNS entries for itself in the DNS, but
the entries are pointing to a different IP Address than the domain
controller has.

The domain controller will not overwrite the existing entries. You
have to remove the wrong, stale entries and after that the domain
controller should be able to register (update) the address records
with the correct IP addresses. You can force this with a reboot or
with ipconfig /registerdns from the commandline.

The old IP addresses might be leftovers from a test, and have not been
properly removed when the IP addresses of the domain controller has
been changed.

Best regards

Carsten Strotmann

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Hi

My company moved to a 2008R2 Domain Controller environment. Now I see the 
following message in the windows log:

Title: This domain controller must register its correct IP addresses with the 
DNS server
Severity: Error
Category: Configuration
Issue: The Domain Name System (DNS) host resource records for this domain 
controller's fully qualified domain name currently map to the IP addresses that 
do not belong to this domain controller. The invalid IP addresses are 10.1.1.1; 
10.2.2.2.
Impact: Other member computers and domain controllers in the domain or forest 
might not be able to locate this domain controller. This domain controller will 
not be able to provide a full suite of services.
Resolution: Ensure that the DNS Client service on this domain controller is 
configured and able to register valid host resource records with an 
authoritative DNS server for the domain.
More information about this best practice and detailed resolution procedures: 
http://go.microsoft.com/fwlink/?LinkId=131229


All Domain Controllers have zone updates rights on the master dns server

Re: MS AD 2008R2 and bind

2012-01-03 Thread Vbvbrj
There is a bug in Windows 2008 R2 which prevents correct registration to 
BIND dns servers. See http://support.microsoft.com/kb/2002490 for the 
hotfix to apply. Unfortunately, this hotfox still does not correct the 
behavior. Windows 2008 R2 registers the  record first. This record 
is registered correctly on BIND, but the response from BIND is 
interpreted by the windows incorrectly, so it stops registering the 
following records, like the A record. However, the DCs with this patch 
successfully registers all records related to the AD.

This is a strange behavior.
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