[SOLVED] I need to disable a loopback adapter from registering in DNS

[ceez]

Hello fellow msfn-ers!

We have a server that is also running Virtual Server. We "installed" the MS loopback adapter so the virtual server could also get internet connectivity. The problem we are having is that the loopback adapter is registering on our DNS as the same name of our server. So now we have 2 entries in our FORWARD DNS ZONE with the same server name but with different IPs:

BAMVSR01 10.201.1.206

BAMVSR01 10.201.1.229 <- loopbackIP

The correct IP that should be listed in the FWD ZONE is .206

I went to the properties of the tcp/ip adapter, advanced button, DNS tab and then unchecked "Register this connection's addresses in DNS".

I then perform a ipconfig/flushdns from the server

Delete both entries from our DNS

Go back to the server and run ipconfig/registerdns

Go back to DNS - refresh, and both entries show up again!

It will disapear from the REVERSE but not from the FOWARD zone.

Why is this happening. Am I looking at the wrong section to disable DNS registering?

I even tried entering a DNS name for the connection on the box right above the checkmark but it will not register that different name, ie: BARLOOPBK. No go in registering that name either.

Can someone shed some light on this issue?

Thanks for your time,

Ceez

Edited October 20, 2006 by ceez

[ceez]

I think I found a resolution. So far it has been about 3 hours and nothign shows up in DNS for that loopback adapter. Here's the info I found....

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To disable DNS updates for a particular interface, follow these steps:

1. Click Start, click Run, type regedit, and then click OK.

2. Locate and then click the following registry subkey:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\

Tcpip\Parameters\Interfaces\deviceID

Note deviceID is the device ID of the network adaptor for the interface.

3. On the Edit menu, point to New, and then click DWORD Value.

4. Type DisableDynamicUpdate, and then press ENTER two times.

5. In the Edit DWORD Value dialog box, type 1 in the Value data box, and

then click OK.

6. Quit Registry Editor.

For more detailed information please refer to the following article:

246804 How to enable or disable DNS updates in Windows 2000 and in Windows

Server 2003

http://support.microsoft.com/default.aspx?...kb;EN-US;246804

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