Policy

Set TTL in the DC Locator DNS Records

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.

Policy
Pack Microsoft Windows
Category System / Net Logon / DC Locator DNS Records
Policy ID 5fa80d5283e1
Internal name Netlogon_DnsTtl

Registry

Copy registry mappings

HKLM\Software\Policies\Microsoft\Netlogon\Parameters\DnsTtl

Policy notes

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.

Related policies

Block NetBIOS-based discovery for domain controller locationDo not process incoming mailslot messages used for domain controller location based on NetBIOS domain namesDo not use NetBIOS-based discovery for domain controller location when DNS-based discovery failsForce Rediscovery IntervalReturn domain controller address typeSet Priority in the DC Locator DNS SRV recordsSet Weight in the DC Locator DNS SRV records