Zone Not Loaded by DNS Server

Hello, We have 2 local DNS server in the office. When I open the DNS console
from first local DNS server, I noticed that out of 57 zones under forward
lookup, there are 4 zones which always fail to load by dns server. But when I
open the DNS console from second local DNS serverin a same time, those 4
zones under forward lookup are up and running. There are also times that
those 4 zones get an error(fail to load by dns server) from the first local
DNS server but not from the second local DNS server. Can someone help to
engligthen here of what we experience the cause of the error? Thank You.

 

We'll need more info to better respond.

1. Are the DNS servers domain controllers? If so, please provide an unedited
ipconfig /all from the two DCs.

2. How many DNS servers do you have?

3. What type of zones are they? Primary AD Integrated, Standard Primary, or
Secondary zones?

4. If not AD integrated, what the zone's relationship between the two
"local" DNS servers?

5. Any errors in any of the Event logs?


--
Ace

This posting is provided "AS-IS" with no warranties or guarantees and
confers no rights.

Please reply back to the newsgroup or forum for collaboration benefit among
responding engineers, and to help others benefit from your resolution.

Ace Fekay, MCT, MCITP EA, MCTS Windows 2008 & Exchange 2007, MCSE & MCSA
2003/2000, MCSA Messaging 2003
Microsoft Certified Trainer

For urgent issues, please contact Microsoft PSS directly. Please check
http://support.microsoft.com for regional support phone numbers.

 

Hi Ace,

1.) Yes, the DNS servers are domain controllers.

For DC1 -> ipconfig /all

Windows IP Configuration

Host Name ...............................: MNDC1
Primary Dns Suffix ....................: sbs.com
Node Type ...............................: Unknown
IP Routing Enabled ....................: No
WINS Proxy Enabled .................: Yes
DNS Suffix Search List ..............: sbs.com

Ethernet adapter Local Area Connection 2:

Connection-specific DNS Suffix . :
Description ..............................: HP NC7782 Gigabit Server Adapter
Physical Address ......................: 00-13-21-0C-85-82
DHCP Enabled ..........................: Yes
Autoconfiguration Enabled .........: Yes
Autoconfiguration IP Address .....: 169.254.90.137
Subnet Mask ............................: 255.255.0.0

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix .: sbs.com
Description .............................: HP NC7782 Gigabit Server Adapter #2
Physical Address .....................: 00-13-21-0C-85-83
DHCP Enabled .........................: No
IP addresss .............................: 10.121.20.1
Subnet Mask ...........................: 255.255.0.0
Default Gateway ......................: 10.121.1.1
DNS Server .............................: 10.121.20.2
10.121.20.1
Primary WINS Server ...............: 10.121.20.1
NetBIOS over Tcpip...................: Disabled


For DC2 -> ipconfig /all

Windows IP Configuration

Host Name ...............................: MNDC2
Primary Dns Suffix ....................: sbs.com
Node Type ...............................: Hybrid
IP Routing Enabled ....................: No
WINS Proxy Enabled .................: No
DNS Suffix Search List ..............: sbs.com

Ethernet adapter Local Area Connection 2:

Connection-specific DNS Suffix . :
Description ..............................: HP NC7782 Gigabit Server Adapter
#2
Physical Address ......................: 00-11-85-69-E3-4C
DHCP Enabled ..........................: Yes
Autoconfiguration Enabled .........: Yes
Autoconfiguration IP Address .....: 0.0.0.0
Subnet Mask ............................: 0.0.0.0
Default Gateway .......................:
DHCP Server ............................: 255.255.255.255

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix .:
Description .............................: HP NC7782 Gigabit Server Adapter
Physical Address .....................: 00-11-85-69-E3-4D
DHCP Enabled .........................: No
IP addresss .............................: 10.121.20.2
Subnet Mask ...........................: 255.255.0.0
Default Gateway ......................: 10.121.1.1
DNS Server .............................: 10.121.20.1
10.121.20.2


2.) We have a total of 16 DNS server, 2 from our local office and 14 from
remote offices.

3.) Three Secondary zones and One Primary AD - Integrated. Those 3
Secondary Zones are usually experiencing the error.

4.) --

5.) Could not find related Error logs from Event Viewer

 

Thank you for posting the requested info. I see the problem. There are
multiple NICs, and the undesired IP address, and in the one case, the
169.254.x.x APIPA number is registering into DNS. Keep in mind, all DCs,
clients, etc, all query DNS to "find" domain controllers. If there is an
undesired address, such as this, and if this address is given for the query
response, the clients, or DC to DC communication will fail.

Disable the unused NICs in Network Connections. Then run:
ipconfig /registerdns
net stop netlogon
net start netlogon

Then go through DNS with a fine tooth comb and remove any unwanted IPs for
any of the DCs that do not belong.

If any of the other DCs are multihomed, that *WILL* cause problems, too, and
is suggested to never multihome a DC for the above reason.

Also, I see that WINS proxy is enabled on MNDC1. Any reason why?

For multihoming or simply forgetting to disable an unused NIC, and what it
does, please read my blog on multihomed DCs for the full blown explanation.

Multihomed DCs with DNS, RRAS, multiple IPs, and/or PPPoE adapters
http://msmvps.com/blogs/acefekay/ar...-dcs-with-dns-rras-and-or-pppoe-adapters.aspx

Ace