|Data type||Range||Default value|
|REG_DWORD||0 | 1||0|
Determines when the DNS server writes NS records in the Authority section of a response. This entry relieves the DNS server of the task of writing unnecessary NS records in the Authority section and ensures that the DNS server complies with relevant RFCs.
|0||The DNS server writes NS records in the Authority section of referrals only. This setting complies with RFC1034 and the DNSIND Clarify Draft.|
|1||The DNS server writes NS records in the Authority section of all successful authoritative responses. These NS records are neither required nor useful.|
To change the value of this entry, use Dnscmd.exe, a tool included with the Windows 2000 Support Tools. The change is effective immediately; you do not have to restart the DNS server.
DNS reads its registry entries only when it starts. You can change entries while the DNS server is running by using Dnscmd.exe. If you change entries by editing the registry, the changes are not effective until you restart the DNS server.
The default value is optimal for most DNS servers. Providing NS records in the Authority section consumes processor time and network bandwidth and is not recommended unless it is required by a network application or service.