Set TTL in the DC Locator DNS Records

Supported on: At least Windows Server 2003 operating systems or Windows XP Professional

Registry

HKLM Software\Policies\Microsoft\Netlogon\Parameters

Options

DnsTtl decimal - range ?-4294967200

Description

This policy setting specifies the value for the Time-To-Live (TTL) field in SRV resource records that are registered by the Net Logon service. These DNS records are dynamically registered, and they are used to locate the domain controller (DC). To specify the TTL for DC Locator DNS records, click Enabled, and then enter a value in seconds (for example, the value "900" is 15 minutes). If you do not configure this policy setting, it is not applied to any DCs, and DCs use their local configuration.