Parameters\DnsTtl
Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2
HKLM\SYSTEM\CurrentControlSet\Services\Netlogon\Parameters
| Data type | Range | Default value |
|---|---|---|
REG_DWORD |
0x0 | 0x1–0x7FFFFFFF (seconds) |
0x258 (600 seconds = 10 minutes) |
Description
Specifies how long a memory cache in the client computer saves Domain Name System (DNS) records that the Net Logon service registers.
| Value | Meaning |
|---|---|
0x0 |
DNS records registered by Net Logon are not cached. |
0x1–0x7FFFFFFF seconds |
Specifies the maximum time that DNS records registered by Net Logon are saved in the client cache. |
This value applies to all records, regardless of how frequently or how recently the records might be referenced. This entry is relevant only on domain controllers.
This entry does not exist in the registry by default. You can add it by using the registry editor Regedit.exe.
Tip
- Increasing the value of this entry might improve performance. However, if this value is too large, then the DNS records might not be refreshed on the client often enough.