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DNS configuration in different forest

mxgong
mxgong asked
on
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Last Modified: 2008-08-22
Hi All Expert

I am using VMware to build LAB environment.

Vmware 1.05 server

Machine1:
hostname: abcsyd
OS: Windows2003
Exchange 2003
Domain Name: abc.com.au
domain controller /schema
NC1:
ip address: 192.168.100.1 255.255.254.0
default gateway: 192.168.100.1
DNS: 127.0.0.1

NC2:
ip address: 192.168.200.1 255.255.254.0
default gateway: 192.168.200.1
DNS: 192.168.200.1


Machine2:
hostname: abcusa
OS: Windows2003
Domain Name: abc.com
domain controller / schema
NC1:
ip address: 192.168.200.1 255.255.254.0
default gateway: 192.168.200.1
DNS: 127.0.0.1

NC2:
ip address: 192.168.100.1 255.255.254.0
default gateway: 192.168.100.1
DNS: 192.168.100.1


Machine3:
hostname: abcusa2
OS: Windows2003
Domain Name: abc.com
BDC

NC1:
ip address: 192.168.200.10 255.255.254.0
default gateway: 192.168.200.1
DNS: 192.168.200.1

Two forest, two domains, two subnets


I can make a ping to other hosts from each hosts, but When I use "nslookup" on domain controller, i got message said server name unknown..how to configure DNS server for forest?

I need to create forest trust, but I know my DNS server configuration is not correct....so anyone can help me fix my DNS problem?


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Chris DentPowerShell Developer
CERTIFIED EXPERT
Top Expert 2010

Commented:

Hey,

I do have a few comments on your IP configuration above.

Is 192.168.100.1 able to answer DNS requests for your AD Domain? It's listed as the Default Gateway in most of the above configurations.

If it isn't able to answer for that it should not be listed.

Machine 1 and 2 have conflicting IP addresses (192.168.200.1).

There's no point in listing Default Gateways on these boxes if they cannot route to anywhere. Listing the local interface as Default Gateway doesn't give you anything other than confusing configuration.

For the DNS error. Create a Reverse Lookup zone for your subnet. Most of the time that's all the error message when starting nslookup is caused by.

Chris

Author

Commented:
Thanks for your reply

I changed it to:

Vmware 1.05 server

Machine1:
hostname: abcsyd
OS: Windows2003
Exchange 2003
Domain Name: abc.com.au
domain controller /schema
NC1:
ip address: 192.168.100.10 255.255.254.0
default gateway: 192.168.100.1
DNS: 192.168.100.10


Machine2:
hostname: abcusa
OS: Windows2003
Domain Name: abc.com
domain controller / schema
NC1:
ip address: 192.168.100.1 255.255.254.0

NC2:
ip address: 192.168.200.1 255.255.254.0

Enable IP Forwarding in registry on machine2

Machine3:
hostname: abcusa2
OS: Windows2003
Domain Name: abc.com
BDC

NC1:
ip address: 192.168.200.10 255.255.254.0
default gateway: 192.168.200.1
DNS: 192.168.200.10


Like this?
Chris DentPowerShell Developer
CERTIFIED EXPERT
Top Expert 2010

Commented:

That looks good.

Does it allow you to connect to the DNS service on 192.168.200.10 now?

Chris

Author

Commented:
would you mind tell me how to connect to the DNS service on 192.168.200.10 ???
Chris DentPowerShell Developer
CERTIFIED EXPERT
Top Expert 2010

Commented:

Good morning,

You can test it using nslookup:

nslookup
server 192.168.200.10

However, if it really is simple routing you will need to use this one 192.168.100.10. It's only if you're performing NAT or PAT that you get to use a different IP.

Chris


Author

Commented:
hi , sorry for late

So, Now, I am going to configure DNS on  these machines

primary DNS: abcusa
secondary DNS: abcsyd

So, how to configure this??

Cheers
PowerShell Developer
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Top Expert 2010
Commented:
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Author

Commented:
That's my current situation:

Machine1
hostname: win2003router
NC1: IP address: 192.168.100.1  255.255.254.0
NC2: IP address: 192.168.200.1 255.255.254.0
IP forwarding enabled in registry

Machine2:
hostname: abcsyd
OS: Windows2003
Exchange 2003
Domain Name: abc.com.au
domain controller /schema
NC1:
ip address: 192.168.100.10 255.255.254.0
default gateway: 192.168.100.1
DNS:192.168.200.10
          192.168.100.10 (127.0.0.1)

Machine3:
hostname: abcsyd2
OS: Windows2003
Domain Name: abc.com,au
BDC

ip address: 192.168.100.20 255.255.254.0
default gateway: 192.168.100.1
DNS: 192.168.200.10
            192.168.100.10


Machine4
hostname: abcusa
OS: Windows2003
Domain Name: abc.com
domain controller / schema
ip address: 192.168.200.10 255.255.254.0
GW: 192.168.200.1
DNS:192.168.200.10 (127.0.0.1)

----------------------------------------------------------------------------------------
***I would like to configure the Machine 4 "abcusa" as primary DNS, it should include abc.com & abc.com.au, is it correct?

Current I can see abc.com in the DNS of abcusa, The type is active Directory-integrated, not primary DNS, and I can not see abc.com.au in the DNS zone

how to change type to primary DNS ? and how to add abc.com.au?
how to configure Reverse Lookup Zone for both abc.com & abc.com.au?

***The machine2 "abcsyd" as secondary DNS, only see abc.com.au

Current I can see abc.com.au but this is as Active Directory-Integrated

how to make it as seconday DNS? and how to configure Reverse Lookup Zone?

Sorry I am asking too much... I am quite new in this area.....

Thanks for your help
Chris DentPowerShell Developer
CERTIFIED EXPERT
Top Expert 2010

Commented:
Hey,

Sorry I missed your last posting. Still need help with this bit or are you all set now?

Chris

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