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Change default DNS server on client with 2 nics

Last response: in Windows 2000/NT
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Anonymous
July 22, 2004 6:52:11 PM

Archived from groups: microsoft.public.win2000.dns,microsoft.public.win2000.networking (More info?)

I have a Win2k Pro machine with 2 nics. Currently the default dns server is
set to an address on nic#1. I need the default server to be one from nic#2.
How can I specify a dns server when more than one nic is involved?

Nick Trenary
Computer Information Systems Analyst
Cedar Rapid Public Library
Anonymous
July 22, 2004 6:52:12 PM

Archived from groups: microsoft.public.win2000.dns,microsoft.public.win2000.networking (More info?)

Remove DNS from the first NIC? Why do you have 2 NICS anyways? I this
machine a router?

--
Scott Harding
MCSE, MCSA, A+, Network+
Microsoft MVP - Windows NT Server

"Nick Trenary" <nick@mail.crlibrary.org> wrote in message
news:BD25851B.3948%nick@mail.crlibrary.org...
> I have a Win2k Pro machine with 2 nics. Currently the default dns server
is
> set to an address on nic#1. I need the default server to be one from
nic#2.
> How can I specify a dns server when more than one nic is involved?
>
> Nick Trenary
> Computer Information Systems Analyst
> Cedar Rapid Public Library
>
Anonymous
July 22, 2004 8:57:37 PM

Archived from groups: microsoft.public.win2000.dns,microsoft.public.win2000.networking (More info?)

The primary DNS server can be configured on a per adapter basis. The
adapter's primary DNS server can have any IP address which is reachable from
the client machine regardless of which adapter is used to send the packets.
See:

http://www.microsoft.com/windows2000/techinfo/reskit/en...

Doug Sherman
MCSE Win2k/NT4.0, MCSA, MCP+I, MVP

"Nick Trenary" <nick@mail.crlibrary.org> wrote in message
news:BD25851B.3948%nick@mail.crlibrary.org...
> I have a Win2k Pro machine with 2 nics. Currently the default dns server
is
> set to an address on nic#1. I need the default server to be one from
nic#2.
> How can I specify a dns server when more than one nic is involved?
>
> Nick Trenary
> Computer Information Systems Analyst
> Cedar Rapid Public Library
>
Related resources
Anonymous
July 22, 2004 11:01:32 PM

Archived from groups: microsoft.public.win2000.dns,microsoft.public.win2000.networking (More info?)

"FriedFred" <anonymous@discussions.microsoft.com> wrote in message
news:279901c47046$1c189050$a501280a@phx.gbl...
> Just received a refurbished Dell Lapttop with win2kpro
> loaded and can't get full screen display. What to do?

Just do it. Take off any you don't want and add any you do.

You can even add the same one to both NICs.

DNS is a ROUTABLE service since it uses IP and therefore
it doesn't really matter as long as the DNS server is specified.


--
Herb Martin


"Nick Trenary" <nick@mail.crlibrary.org> wrote in message
news:BD25851B.3948%nick@mail.crlibrary.org...
> I have a Win2k Pro machine with 2 nics. Currently the default dns server
is
> set to an address on nic#1. I need the default server to be one from
nic#2.
> How can I specify a dns server when more than one nic is involved?
>
> Nick Trenary
> Computer Information Systems Analyst
> Cedar Rapid Public Library
>
Anonymous
July 23, 2004 12:20:42 PM

Archived from groups: microsoft.public.win2000.dns,microsoft.public.win2000.networking (More info?)

I prefer 127.0.0.1

It always works and that is what the system will default to if you don't
include one at all.

--

Phillip Windell [MCP, MVP, CCNA]
www.wandtv.com


"Nick Trenary" <nick@mail.crlibrary.org> wrote in message
news:BD25851B.3948%nick@mail.crlibrary.org...
> I have a Win2k Pro machine with 2 nics. Currently the default dns server
is
> set to an address on nic#1. I need the default server to be one from
nic#2.
> How can I specify a dns server when more than one nic is involved?
>
> Nick Trenary
> Computer Information Systems Analyst
> Cedar Rapid Public Library
>
Anonymous
July 28, 2004 5:55:59 PM

Archived from groups: microsoft.public.win2000.dns,microsoft.public.win2000.networking (More info?)

"Phillip Windell" <@.> wrote in message
news:o J46bfLcEHA.3300@TK2MSFTNGP09.phx.gbl...
> I prefer 127.0.0.1
>
> It always works and that is what the system will default to if you don't
> include one at all.
>
> --
>
> Phillip Windell [MCP, MVP, CCNA]
> www.wandtv.com
>

Hi Phillip,

Its actually preferred to use tha actual IP address. The loopback will show
up if dcpromo installs DNS for you. Using the loopback also causes that
familiar 'domain not found' message when nslookup invokes. If you ever tried
to put in 127.0.0.1, it won't let you anyway. You would need to go thru the
reg to do it. But as for best practice, its recommened to use the actual IP.

Cheers!!

--
Regards,
Ace

Please direct all replies ONLY to the Microsoft public newsgroups
so all can benefit.

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

Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSE+I, MCT, MVP
Microsoft Windows MVP - Windows Server - Directory Services

Security Is Like An Onion, It Has Layers
HAM AND EGGS: A day's work for a chicken;
A lifetime commitment for a pig.
--
=================================
Anonymous
July 28, 2004 5:56:00 PM

Archived from groups: microsoft.public.win2000.dns,microsoft.public.win2000.networking (More info?)

"Ace Fekay [MVP]" <firstnamelastname@hotmail.com> wrote in message
news:urcgmwMdEHA.2384@TK2MSFTNGP09.phx.gbl...
> Its actually preferred to use tha actual IP address. The loopback will
show
> up if dcpromo installs DNS for you. Using the loopback also causes that
> familiar 'domain not found' message when nslookup invokes. If you ever
tried
> to put in 127.0.0.1, it won't let you anyway. You would need to go thru
the
> reg to do it. But as for best practice, its recommened to use the actual
IP.

I've seen it claimed both ways. I am in fact using 127.0.0.1 on a 2003 dc
in a network with only a single DC and did not have to adjust the registry.
If you leave the DNS entry blank and try to leave the dialog box it will
automatically put in 127.0.0.1, ....I don't see why it would do that if it
wan't a valid entry.

--

Phillip Windell [MCP, MVP, CCNA]
www.wandtv.com
Anonymous
July 29, 2004 2:21:53 AM

Archived from groups: microsoft.public.win2000.dns,microsoft.public.win2000.networking (More info?)

In news:utuU25MdEHA.720@TK2MSFTNGP11.phx.gbl,
Phillip Windell <@.> asked for help and I offered my suggestions below:
> "Ace Fekay [MVP]" <firstnamelastname@hotmail.com> wrote in message
> news:urcgmwMdEHA.2384@TK2MSFTNGP09.phx.gbl...
>> Its actually preferred to use tha actual IP address. The loopback
>> will show up if dcpromo installs DNS for you. Using the loopback
>> also causes that familiar 'domain not found' message when nslookup
>> invokes. If you ever tried to put in 127.0.0.1, it won't let you
>> anyway. You would need to go thru the reg to do it. But as for best
>> practice, its recommened to use the actual IP.
>
> I've seen it claimed both ways. I am in fact using 127.0.0.1 on a
> 2003 dc in a network with only a single DC and did not have to adjust
> the registry. If you leave the DNS entry blank and try to leave the
> dialog box it will automatically put in 127.0.0.1, ....I don't see
> why it would do that if it wan't a valid entry.

If you tried to type it in, it won't accept it, saying its an ivalid IP. Try
it.

Sure, you can use it, not saying you can't and dcpromo will put it in for
you if you don't already point to yourself for DNS (it does it thru the
reg), but its not really recommended. It can also cause issues with RAS
(article below describing that). You can also ask some of the others here as
well. Here's a repost from awhile ago discussing it ...

====================
Q172060 - NSLOOKUP Can't Find Server Name for Address 127.0.0.1 -
(another good reason not to use the loopback):
http://support.microsoft.com/default.aspx?scid=KB;EN-US;Q172060&

Q254715 - RAS Clients Receive 127.0.0.1 for DNS Server Address:
http://support.microsoft.com/default.aspx?scid=KB;EN-US;Q254715&

And here's a post from Thomas Lee from awhile back about it:
============================
----- Original Message -----
From: "Thomas Lee [MVP]" <thomas@mvps.org>
Newsgroups: microsoft.public.win2000.dns
Sent: Saturday, October 12, 2002 11:13 AM
Subject: Re: DNS configeration


> In article <084201c271db$d74c6600$35ef2ecf@TKMSFTNGXA11>, dave
> <quick@firenet.uk.com> writes
>> i am setting up DNS on our server and was just wondering
>> ont he reverse look up should the IP number be
>> 192.168.0.x or 127.0.0.x? the rest of the computer of the
>> network are 192.168.0.x but the servers DNS IP number is
>> 127.0.0.x? which Ip number should i use?
>
> Ipconfig /displaydns should show you that a reverse lookup for 127.0.0.1
> is already in place. Set your reverse lookup to the actual IP address of
> your server.
>
> 127.0.0.0 is not a valid IP address for a host. This range is always a
> local loopback address.
>
> Thomas
===================

--
Regards,
Ace

Please direct all replies ONLY to the Microsoft public newsgroups
so all can benefit.

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

Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSE+I, MCT, MVP
Microsoft Windows MVP - Windows Server - Directory Services

Security Is Like An Onion, It Has Layers
HAM AND EGGS: A day's work for a chicken;
A lifetime commitment for a pig.
--
=================================
Anonymous
July 29, 2004 6:11:53 PM

Archived from groups: microsoft.public.win2000.dns,microsoft.public.win2000.networking (More info?)

"Ace Fekay [MVP]"
<PleaseSubstituteMyActualFirstName&LastNameHere@hotmail.com> wrote in > If
you tried to type it in, it won't accept it, saying its an ivalid IP. Try
> it.

Well, I don't know what to tell you then. I did type it in, it did accept
it, never complained, and has ran for a long time that way. The network I
use it on only has one DC. All the Clients use the actual IP# of DC (both
DHCP, and static clients). RRAS client have never gotten the wrong IP# and
have always gotten the right DNS IP# that they should.

--

Phillip Windell [MCP, MVP, CCNA]
www.wandtv.com
Anonymous
July 29, 2004 7:28:46 PM

Archived from groups: microsoft.public.win2000.dns,microsoft.public.win2000.networking (More info?)

"Phillip Windell" <@.> wrote in message
news:e8XKp$ZdEHA.3728@TK2MSFTNGP09.phx.gbl...
> "Ace Fekay [MVP]"
> <PleaseSubstituteMyActualFirstName&LastNameHere@hotmail.com> wrote in > If
> you tried to type it in, it won't accept it, saying its an ivalid IP. Try
> > it.
>
> Well, I don't know what to tell you then. I did type it in, it did accept
> it, never complained, and has ran for a long time that way. The network I
> use it on only has one DC. All the Clients use the actual IP# of DC (both
> DHCP, and static clients). RRAS client have never gotten the wrong IP#
and
> have always gotten the right DNS IP# that they should.
>
> --
>
> Phillip Windell [MCP, MVP, CCNA]
> www.wandtv.com

Interesting! Well, I guess if its not broke, don't fix it!

Its usually one of the first things I mention go change.... just in case.

:-)

Ace
Anonymous
July 29, 2004 7:28:47 PM

Archived from groups: microsoft.public.win2000.dns,microsoft.public.win2000.networking (More info?)

"Ace Fekay [MVP]" <firstnamelastname@hotmail.com> wrote in message
news:o ErEKJadEHA.2696@TK2MSFTNGP09.phx.gbl...
> Interesting! Well, I guess if its not broke, don't fix it!
>
> Its usually one of the first things I mention go change.... just in case.
>
> :-)

Well, if it helps, next time I will simply suggest to people that the DC
should point to itself and not specify what address they use and just leave
it up to them.

As far as the KB articles, many of them result from customer problems
resolved by the guys at PSS. On more than one occasion we couldn't verify
with absolute certainy that what we thought we did really cured the problem,
or if it was something else, or maybe just a coincidence. If an article was
written based on a such a situation it is possible that the article is wrong
or at least not entirely accurate or only partially acuarte,.....or even
just accuarte under certain very narrow conditions. So even with as high
regaurd that I hold those articles, there is still room for doubt when the
article says one thing and I see something else with my own eyes.

--

Phillip Windell [MCP, MVP, CCNA]
www.wandtv.com
Anonymous
July 30, 2004 1:14:40 AM

Archived from groups: microsoft.public.win2000.dns,microsoft.public.win2000.networking (More info?)

In news:o TqxHeadEHA.3308@TK2MSFTNGP11.phx.gbl,
Phillip Windell <@.> asked for help and I offered my suggestions below:
>
> Well, if it helps, next time I will simply suggest to people that the
> DC should point to itself and not specify what address they use and
> just leave it up to them.
>
> As far as the KB articles, many of them result from customer problems
> resolved by the guys at PSS. On more than one occasion we couldn't
> verify with absolute certainy that what we thought we did really
> cured the problem, or if it was something else, or maybe just a
> coincidence. If an article was written based on a such a situation
> it is possible that the article is wrong or at least not entirely
> accurate or only partially acuarte,.....or even just accuarte under
> certain very narrow conditions. So even with as high regaurd that I
> hold those articles, there is still room for doubt when the article
> says one thing and I see something else with my own eyes.

I have to agree with you. Some of the articles can be ambiguous. I remember
finding one and reporting it awhile ago. I don't remember which one it is
now, and forgot all about it.

One thing about the loopback, the nslookup message will come up alarming
some folks. I guess if not for any other reason, at least using the actual
IP will eliminate that message, provided they have a reverse zone and a PTR.

Cheers!

--
Regards,
Ace

Please direct all replies ONLY to the Microsoft public newsgroups
so all can benefit.

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

Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSE+I, MCT, MVP
Microsoft Windows MVP - Windows Server - Directory Services

Security Is Like An Onion, It Has Layers
HAM AND EGGS: A day's work for a chicken;
A lifetime commitment for a pig.
--
=================================
!