DNS issue

English Network/Internet
1

My internal DNS Server (PDC1.REALM.local 192.168.1.20) is on a Windows 2003 Server. DNS works fine for my windows machines, but when I ping or nslookup using a Netbios name from my openSUSE 12.2 machine the results come back from my ISP’s DNS with incorrect IP addresses.

LTS1:~ # nslookup pdc1
Server: 209.18.47.61
Address: 209.18.47.61#53

Non-authoritative answer:
Name: pdc1.REALM
Address: 66.152.109.110
Name: pdc1.REALM
Address: 69.16.143.110

My resolv.conf has the following entries set by YaST\Network Settings.

search REALM
nameserver 192.168.1.20
nameserver 209.18.47.61
nameserver 209.18.47.62

Any suggestions?

2

On 2012-09-25 23:46, bagner wrote:
>
> My internal DNS Server (PDC1.REALM.local 192.168.1.20) is on a Windows
> 2003 Server. DNS works fine for my windows machines, but when I ping or
> nslookup using a Netbios name from my openSUSE 12.2 machine the results
> come back from my ISP’s DNS with incorrect IP addresses.

Remove the ISP DNS from the list.

–
Cheers / Saludos,

Carlos E. R.
(from 12.1 x86_64 “Asparagus” at Telcontar)

3
  1. Is there some reason why your private DNS has a public IP address?
  2. Is “REALM” really part of your real Domain name? “Realm” has a special meaning when describing LDAP domains, I don’t know if using that word as part of a Domain name could cause issues, at the least you could create confusion.
  3. Am wondering why you’re exposing private addresses and resources publicly, are you trying to configure Split DNS?

I’m not sure exactly what your question is, you intentionally pointed your NSLOOKUP to a public DNS instead of querying whatever your default DNS is.

If you’re asking why your openSUSE might not be automatically configured to query your AD DNS, my guess is that your machine has not been added to your Windows Domain and if it’s configured with DHCP may even be picking up its address not from your AD DHCP vut some rogue DHCP like your Internet Gateway router.

Just lots of guessing,
TSU

4

Thanks, that worked

5

This is an address behind my router

  1. Is “REALM” really part of your real Domain name? “Realm” has a special meaning when describing LDAP domains, I don’t know if using that word as part of a Domain name could cause issues, at the least you could create confusion.

Yes it is

I was wondering why it was skipping the 1st nameserver and going to the 2nd. The rouge DHCP from my router had also crossed my mind.

As far as I can tell, I have joined the Windows Domain. I am able to log on using AD users, but am having problems saving to a secondary hard drive. I will get into that later in a different post.