Re: DNS gives UnKnown to nslookup Default Server results
- From: "Kevin D. Goodknecht Sr. [MVP]" <admin@xxxxxxxxxxxxxx>
- Date: Mon, 11 Apr 2005 12:51:56 -0500
Matt E - MSI wrote:
> I've gathered that my SBS 2003 is having trouble within the DNS
> service. This occured around the time I performed an upgrade from
> Standard version to Premium, but I don't necessarily know how the
> problem started. In any case, since I don't have an exact
> change/result event to go back to, I hoping to get guidance from this
> group. One indication of the problem is that I get the following for
> nslookup:
>
> ***Cant find server name for address 10.0.3.1: Non-existent domain
> ***Default servers are not available
> Default Server: UnKnown
> Address: 10.0.3.1
>
> I've been trying to determine if there's a configuration error in my
> DNS, but I don't have another SBS machine to compare settings on. I'm
> also seeing strange problems with DC's not communicating, likely
> because AD is relying upon the messed up DNS.
>
> The LAN accesses the Internet through a typical back-to-back firewall
> config with ISA Server on SBS and a hardware firewall device assigned
> the ISPs static IP address. The DMZ between the hardware firewall
> and external NIC on SBS is a private address range with static
> assigned IPs to both. All clients are running well with respect to
> accessing the Internet and name resolution. They are using the
> connection via proxy on "servername" / 8080 configuration. I expected
> this to fail via the "servername" not resolving, but perhaps WINS is
> stepping in here. Something that does fail is my attempt to add more
> computers to the SBS network via "connectcomputer" wizard. The new
> systems are able to get the "connectcomputer" page to open and follow
> the steps to the point where the client computer name is selected,
> but shortly thereafter and error occurs and nothing more happens.
>
> Here's my IpConfig result on server:
>
> Windows IP Configuration
>
> Host Name . . . . . . . . . . . . : msiohcsbs
> Primary Dns Suffix . . . . . . . : MSI.local
> Node Type . . . . . . . . . . . . : Unknown
> IP Routing Enabled. . . . . . . . : Yes
> WINS Proxy Enabled. . . . . . . . : Yes
> DNS Suffix Search List. . . . . . : MSI.local
>
> Ethernet adapter Server LAN Connection:
>
> Connection-specific DNS Suffix . :
> Description . . . . . . . . . . . : Broadcom NetXtreme Gigabit
> Ethernet Physical Address. . . . . . . . . : 00-0D-56-B8-11-2B
> DHCP Enabled. . . . . . . . . . . : No
> IP Address. . . . . . . . . . . . : 10.0.3.1
> Subnet Mask . . . . . . . . . . . : 255.255.255.0
> Default Gateway . . . . . . . . . :
> DNS Servers . . . . . . . . . . . : 10.0.3.1
> Primary WINS Server . . . . . . . : 10.0.3.1
>
> Ethernet adapter Server DMZ Connection:
>
> Connection-specific DNS Suffix . :
> Description . . . . . . . . . . . : Broadcom NetXtreme Gigabit
> Ethernet #2
> Physical Address. . . . . . . . . : 00-0D-56-B8-11-2C
> DHCP Enabled. . . . . . . . . . . : No
> IP Address. . . . . . . . . . . . : 192.168.1.2
> Subnet Mask . . . . . . . . . . . : 255.255.255.0
> Default Gateway . . . . . . . . . : 192.168.1.1
> DNS Servers . . . . . . . . . . . : 10.0.3.1
> Primary WINS Server . . . . . . . : 192.168.1.2
> NetBIOS over Tcpip. . . . . . . . : Disabled
>
> PPP adapter RAS Server (Dial In) Interface:
>
> Connection-specific DNS Suffix . :
> Description . . . . . . . . . . . : WAN (PPP/SLIP) Interface
> Physical Address. . . . . . . . . : 00-53-45-00-00-00
> DHCP Enabled. . . . . . . . . . . : No
> IP Address. . . . . . . . . . . . : 10.0.3.50
> Subnet Mask . . . . . . . . . . . : 255.255.255.255
> Default Gateway . . . . . . . . . :
> NetBIOS over Tcpip. . . . . . . . : Disabled
>
> PPP adapter {603E5879-EC80-43EC-B492-CB6C166620BE}:
>
> Connection-specific DNS Suffix . :
> Description . . . . . . . . . . . : WAN (PPP/SLIP) Interface
> Physical Address. . . . . . . . . : 00-53-45-00-00-00
> DHCP Enabled. . . . . . . . . . . : No
> IP Address. . . . . . . . . . . . : 192.168.234.235
> Subnet Mask . . . . . . . . . . . : 255.255.255.255
> Default Gateway . . . . . . . . . :
> NetBIOS over Tcpip. . . . . . . . : Disabled
Create a reverse lookup zone for the 10.0.3.x subnet. Then follow this KB to
configure this DC for it being a RAS server.
292822 - Name Resolution and Connectivity Issues on Windows 2000 Domain
Controller
with Routing and Remote Access and DNS Installed
http://support.microsoft.com/default.aspx?scid=kb;en-us;292822&FR=1
--?
Best regards,
Kevin D4 Dad Goodknecht Sr. [MVP]
Hope This Helps
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