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Use DNS name resolution with a single-label domain name instead of NetBIOS name resolution to locate the DC
This policy setting specifies whether the computers to which this setting is applied attempt DNS name resolution of a single-label domain names.
By default, the behavior specified in the AllowDnsSuffixSearch is used. If the AllowDnsSuffixSearch policy is disabled, then NetBIOS name resolution is used exclusively, to locate a domain controller hosting an Active Directory domain specified with a single-label name.
If you enable this policy setting, computers to which this policy is applied will attempt to locate a domain controller hosting an Active Directory domain specified with a single-label name using DNS name resolution.
If you disable this policy setting, computers to which this setting is applied will use the AllowDnsSuffixSearch policy, if it is not disabled or perform NetBIOS name resolution otherwise, to attempt to locate a domain controller that hosts an Active Directory domain specified with a single-label name. the computers will not the DNS name resolution in this case, unless the computer is searching for a domain with a single label DNS name that exists in the Active Directory forest to which this computer is joined.
If you do not configure this policy setting, it is not applied to any computers, and computers use their local configuration.
Registry Information
| Vendor | Microsoft |
|---|---|
| Product | Netlogon |
| Category | Net Logon › DC Locator DNS Records |
| Applies to | Computer Configuration |
| Supported on | Windows XP |
| Registry Key | [HKLM]SoftwarePoliciesMicrosoftNetlogonParameters |
| Value Name | AllowSingleLabelDnsDomain |
| Type | REG_DWORD |
| Enabled value | 1 |
| Disabled value | 0 |