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DnsTtl

HKLM\SYSTEM\CurrentControlSet\Services\Netlogon\Parameters

Data type

Range

Default value

REG_DWORD

0x0 | 0x1–0x7FFFFFFF ( seconds )

0x258 ( 600 seconds = 10 minutes )

Description

Determines 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 cache.

This value applies to all records, regardless of how frequently or how recently the records might be referenced. It ensures that client records are always current.

Note Image Note

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.

Tip Image Tip

Increasing the value of this entry might improve performance. However, if this value is too large, the DNS records might not be updated often enough.

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