Policy
Set TTL in the DC Locator DNS Records
Windows 11 25H2
Policy overview
Key metadata and intent for this policy.
Supported OS tags: Windows10, Windows10RT, Windows11, Windows7, Windows8, Windows81, WindowsRT, WindowsRT81, WindowsServer2003, WindowsServer2008, WindowsServer2012, WindowsServer2012R2, WindowsServer2016, WindowsVista, WindowsXP
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.
Registry values
How enabled and disabled states update the registry.
No explicit registry values are set for enabled or disabled states.
Policy elements
Inputs and configuration options exposed by this policy.
| Element | Type | Registry mapping | Constraints & behavior |
|---|---|---|---|
Seconds: ID Netlogon_DnsTtlLabel | decimal | HKLM\Software\Policies\Microsoft\Netlogon\Parameters\DnsTtl Type REG_DWORD | Range: ? to 4294967200 |
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