Programatically find the configured DNS server

22 Feb 2006 3:19 PM

BLsunev

I have some c# code to perform DNS lookups but currently need to provide the
IP address of the DNS server it uses. I would like to be able to identify
the addres of the currently configured DNS server(s) and use this so that the
app will effectively configure itself.

Can anyone please tell me how I can do this, I know with .NET 2.0 and the
System.Net namespace Dns is available that can provide the IP address /
hostname of the system, but I need more than just this - I want the DNS
server.

Thanks in advance,

--
Shaun Venus

22 Feb 2006 4:25 PM

Vadym Stetsyak

Hello, BLsunev!

B> Can anyone please tell me how I can do this, I know with .NET 2.0 and
B> the System.Net namespace Dns is available that can provide the IP
B> address / hostname of the system, but I need more than just this - I
B> want the DNS server.

use WMI, make a query for Win32_NetworkAdapterConfiguration class.
DNSHostBName will contain the information you need...

Take a look at ( http://www.codeproject.com/csharp/ObaFindingIPInformation.asp )

--
Regards, Vadym Stetsyak
www: http://vadmyst.blogspot.com

23 Feb 2006 1:17 AM

jacky kwok

BLsunev wrote:

> I have some c# code to perform DNS lookups but currently need to provide the
> IP address of the DNS server it uses. I would like to be able to identify
> the addres of the currently configured DNS server(s) and use this so that the
> app will effectively configure itself.
>
> Can anyone please tell me how I can do this, I know with .NET 2.0 and the
> System.Net namespace Dns is available that can provide the IP address /
> hostname of the system, but I need more than just this - I want the DNS
> server.
>
> Thanks in advance,
>

In Dotnet2,

the namespace "System.Net.NetworkInformation" also provides classes to
easy access the network information.

There is a full sample in Dotnet2 SDK.

http://msdn2.microsoft.com/en-us/library(d=robot)/2xatedhd.aspx

--
Jacky Kwok
jacky@alumni_DOT_cuhk_DOT_edu_DOT_hk
jacky@compose_DOT_com_DOT_hk

23 Feb 2006 4:30 AM

TerryFei

Hi Shaun,
Welcome to MSDN Newsgroup!

I hope the following article is also helpful for you:
Title: C# .NET DNS query component
URL: http://www.codeproject.com/csharp/dnslookupdotnet.asp

Best Regards,

Terry Fei [MSFT]
Microsoft Community Support
Get Secure! www.microsoft.com/security

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>I have some c# code to perform DNS lookups but currently need to provide
the
>IP address of the DNS server it uses. I would like to be able to identify
>the addres of the currently configured DNS server(s) and use this so that
the
>app will effectively configure itself.
>
>Can anyone please tell me how I can do this, I know with .NET 2.0 and the
>System.Net namespace Dns is available that can provide the IP address /
>hostname of the system, but I need more than just this - I want the DNS
>server.
>
>Thanks in advance,
>
>--
>Shaun Venus
>