Article ID: 2001154 - View products that this article applies to.
A code defect in the Windows Server 2008 SP1 (RTM) and Service Pack 2 version of Dnsmgmt.msc causes the DNS service to use the opposite behavior than the Use root hints if no forwarders are available checkbox in the DNS Manager snap-in.
This problem is scheduled be fixed in Windows Server 2008 Service Pack 3. Customers requiring a post-SP2 fix should request a QFE from Microsoft.
This problem does not exist in the Windows Server 2008 R2 version of Dnsmgmt.msc.
As a workaround, you can use the Windows Server 2008 version of the DNSCMD tool, which correctly displays and configures the root hint behavior. Otherwise use the opposite checkbox configuration to obtain the desired behavior. See the "More Information" section for the DNSCMD tool syntax.
The Use root hints if no forwarders are available checkbox in Windows Server 2008 DNS Manager is equivalent to the Do not use recursion for this domain in the Forwarders tab of the Windows Server 2003 DNS Manager snap-in.
Toggling the use root hints if no forwarders are available checkbox (or its Windows Server 2003 equivalent) modifies the following registry value:
The DNS Server service and DNS Manager snap-in both read DNS registry entries only on startup. You can change entries while the DNS server is running by using the DNS console or DNSCMD tool. If you change entries by editing the registry or by using the DNSCMD tool, the changes are not effective until you restart the DNS Server service. Similarly, if DNS server registry keys are modified directly, restart the DNS Manager snap-in, Dnsmgmt.msc, so that it will reflect current configuration settings.
To view the status of the IsSlave setting in the registry using DNSCMD.EXE use the command:
To modify the value of the IsSlave setting using DNSCMD.EXE:
Sample output from "dnscmd /info" is shown below:
(http://go.microsoft.com/fwlink/?LinkId=151500)for other considerations.