DisableReplaceAddressesInConflicts
Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2
HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters
| Data type | Range | Default value |
|---|---|---|
REG_DWORD |
0 | 1 |
0 |
Description
Prevents the Domain Name System (DNS) client from overwriting an existing resource record when it discovers an address conflict during dynamic update.
An address conflict occurs when the DNS client discovers that an existing A (address) record associates its DNS name with the IP address of a different computer.
By default, the DNS client tries to replace the original registration with a record associating the DNS name to its own IP address. However, you can use this entry to direct DNS to back out of the registration process and to record an error in the Event Viewer log instead.
This entry is designed for zones that do not use secure dynamic update. It prevents unauthorized users from changing the IP address registration of a client computer.
| Value | Meaning |
|---|---|
0 |
The DNS client overwrites the existing A record with an A record for its own IP address. |
1 |
The DNS client backs out of the registration process and writes an error to the Event Viewer log. |
This entry does not exist in the registry by default. You can add it by using the registry editor Regedit.exe.
- To find other registry entries related to DNS dynamic update, type "dynamic update" on the Search tab in this file.