LocalNetPriority
HKLM\SYSTEM\CurrentControlSet\Services\DNS\Parameters
Data type |
Range |
Default value |
|---|---|---|
REG_DWORD |
0 | 1 |
1 |
Description
Determines the order in which the Domain Name System (DNS) server returns A (address) records when it has multiple A records for the same name.
Value |
Meaning |
|---|---|
0 |
The DNS server returns the A records in the order in which they were added to the database. It does not sort the records. If the value of the RoundRobin entry is 1, the server rotates among the records it returns. |
1 |
The DNS server returns records in order of their similarity to the IP address of the querying client. |
Change method
To change the value of this entry, use the DNS console. Right-click the server name, click Properties, and then click the Advanced tab. This entry corresponds to the Enable Netmask Ordering option. You can also use Dnscmd.exe, a tool included with the Windows 2000 Support Tools. With either method, the changes are effective immediately; you do not have to restart the DNS server.
Activation method
DNS reads its registry entries only when it starts. You can change entries while the DNS server is running by using the DNS console or Dnscmd.exe. If you change entries by editing the registry, the changes are not effective until you restart the DNS server.
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Note
The order in which A records are returned depends on the value of this entry and of the RoundRobin entry, as follows:
When both entries are set to 1 (or neither entry appears in the registry), the DNS server rotates among the A records it returns in local net priority order, that is, in order of their similarity to the IP address of the querying client.
If the value of RoundRobin is 0 and the value of LocalNetPriority is 1, the DNS server returns the records in local net priority order. It does not rotate among available addresses.
If the value of RoundRobin is 1 and the value of LocalNetPriority is 0, the DNS server rotates among the available records in the order in which the records were added to the database.
If the values of RoundRobin and LocalNetPriority are 0, the DNS server returns the records in the order in which they were added to the database. It does not attempt to sort them or to rotate among them.
Windows 2000 does not add this entry to the registry. You can add it by editing the registry or by using a program that edits the registry.
Related Entries
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