[THIN] Re: OT: 2k3 NSLookup / DNS Weirdness
- From: "John Hardwick" <jhardwick@xxxxxxxx>
- To: <thin@xxxxxxxxxxxxx>
- Date: Wed, 3 Nov 2004 14:03:03 -0600
Neil,
I've checked both of the DNS servers and they don't show a root server
(.) zone under forward lookup zones (I assume that is where it would
be.)
The servers are set with forwarders right now but they are just set to
forward to my outside DNS servers. "Do Not use recursion for this
domain" isn't checked.
There are no suffixes defined on client side and it is set to append
primary and connection specific DNS suffixes and append parent suffixes
of the primary DNS suffix.
From IPConfig.
Primary Dns Suffix . . . . . . . : KC.nXio.net
DNS Suffix Search List. . . . . . : KC.nXio.net
nXio.net
If I point NSlookup to my DCs it has the problem.. if I point NSlookup
to any outside name server it doesn't.
MS says that NSlookup knows if the DNS server I am connecting to is
inside the domain or not and that's what it uses to determine if it
appends or not. I don't agree with that.
I guess my frustration is that MS's stance is that "sometimes" Nslookup
performs like this and that it doesn't mean anything... thus they won't
even acknowledge that it could be coming from whatever the original
problem is.
If anyone does an nslookup while a member of a 2k3 or 2000 domain for an
outside host without appending a period to it will always resolve the
first time correct?
John Hardwick
President
nXio, LLC.
913-754-8120 x125
www.nxio.net
-----Original Message-----
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On
Behalf Of Braebaum, Neil
Sent: Wednesday, November 03, 2004 12:00 PM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: OT: 2k3 NSLookup / DNS Weirdness
Do your DNS servers thing they are root servers? (is there a . zone?)
When you fully qualify a name it looks like you are getting a response,
so I would think it's either down to suffixes and search lists
(client-side), or possibly recursive settings at the server end
(possibly coupled with maybe thinking it's a root server?).
Neil
> -----Original Message-----
> From: thin-bounce@xxxxxxxxxxxxx
> [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf Of John Hardwick
> Sent: 03 November 2004 17:55
> To: thin@xxxxxxxxxxxxx
> Subject: [THIN] OT: 2k3 NSLookup / DNS Weirdness
>
> All,
>
> I've been working with MS on this and they can't give me an
> answer either.
>
> From a 2K3 member server or even on the DCs themselves if I
> do a nslookup for the short name of a server... i.e. Server1 I
> receive an instant response.
>
> If I do a lookup for the full name i.e.
> Server1.domainname.tld I get a response timed out followed by
> a response.
>
> If I do a lookup for Server1.domainname.tld. (note the period
> at the end) I get an instant response with no failure.
>
> All of the 2K3 Servers are pointed to the 2K3 DCs for DNS
> resolution and I've tried having the 2K3 DNS servers forward
> and not forward with no difference in the results. MS's
> statement is that NSLookup has different logic and behaves
> differently than a ping etc and that it knows when it should
> append the local domain suffix or not. All of the machines
> have no suffixes defined for them. What made me notice this
> was periodic failures on my anti-spam stuff where it would
> lookup for example mail.citrix.com.2k3domainame.tld
>
> I know from other 2K3 deployments I've done that out of the
> box I should be able to do a nslookup without having to put a
> period at the end of the query or having to change the suffix
> in NSlookup.
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