Specify DC Locator DNS records not registered by the DCs
Verified with Windows 11 25H2 — updated on July 30, 2026
Supported on: At least Windows Server 2003 operating systems or Windows XP Professional
Path in the GPO console
Computer Configuration\Administrative Templates\System\Net Logon\DC Locator DNS Records Description
This policy setting determines which DC Locator DNS records are not registered by the Net Logon service. If you enable this policy setting, select Enabled and specify a list of space-delimited mnemonics (instructions) for the DC Locator DNS records that will not be registered by the DCs to which this setting is applied. Select the mnemonics from the following list: Mnemonic Type DNS Record LdapIpAddress A <DnsDomainName> Ldap SRV _ldap._tcp.<DnsDomainName> LdapAtSite SRV _ldap._tcp.<SiteName>._sites.<DnsDomainName> Pdc SRV _ldap._tcp.pdc._msdcs.<DnsDomainName> Gc SRV _ldap._tcp.gc._msdcs.<DnsForestName> GcAtSite SRV _ldap._tcp.<SiteName>._sites.gc._msdcs.<DnsForestName> DcByGuid SRV _ldap._tcp.<DomainGuid>.domains._msdcs.<DnsForestName> GcIpAddress A gc._msdcs.<DnsForestName> DsaCname CNAME <DsaGuid>._msdcs.<DnsForestName> Kdc SRV _kerberos._tcp.dc._msdcs.<DnsDomainName> KdcAtSite SRV _kerberos._tcp.<SiteName>._sites.dc._msdcs.<DnsDomainName> Dc SRV _ldap._tcp.dc._msdcs.<DnsDomainName> DcAtSite SRV _ldap._tcp.<SiteName>._sites.dc._msdcs.<DnsDomainName> Rfc1510Kdc SRV _kerberos._tcp.<DnsDomainName> Rfc1510KdcAtSite SRV _kerberos._tcp.<SiteName>._sites.<DnsDomainName> GenericGc SRV _gc._tcp.<DnsForestName> GenericGcAtSite SRV _gc._tcp.<SiteName>._sites.<DnsForestName> Rfc1510UdpKdc SRV _kerberos._udp.<DnsDomainName> Rfc1510Kpwd SRV _kpasswd._tcp.<DnsDomainName> Rfc1510UdpKpwd SRV _kpasswd._udp.<DnsDomainName> If you disable this policy setting, DCs configured to perform dynamic registration of DC Locator DNS records register all DC Locator DNS resource records. If you do not configure this policy setting, DCs use their local configuration.
Registry
Software\Policies\Microsoft\Netlogon\Parameters MDM / Intune (CSP)
./Device/Vendor/MSFT/Policy/Config/ADMX_Netlogon/Netlogon_DnsAvoidRegisterRecords Microsoft Learn documentation Mapping data: Microsoft Learn (CC BY 4.0)
Export Builder
BETAConfigure the state, scope and options, then generate .reg, PowerShell, Intune and SCCM outputs — or add the setting to a multi-setting collection.
These exports write the registry — this is not a managed GPO. ⓘ
.reg file
Windows Registry Editor Version 5.00
; Exported from gporais.com
; Policy: Specify DC Locator DNS records not registered by the DCs
; State: Enabled
; Supported on: At least Windows Server 2003 operating systems or Windows XP Professional
[HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Netlogon\Parameters]
"DnsAvoidRegisterRecords"=""More formats (PowerShell, Intune, SCCM)
PowerShell
# Exported from gporais.com
# Policy: Specify DC Locator DNS records not registered by the DCs
# State: Enabled
# Supported on: At least Windows Server 2003 operating systems or Windows XP Professional
$path = 'HKLM:\Software\Policies\Microsoft\Netlogon\Parameters'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'DnsAvoidRegisterRecords' -Value '' -Type StringIntune XML
OMA-URI: ./Device/Vendor/MSFT/Policy/Config/ADMX_Netlogon/Netlogon_DnsAvoidRegisterRecords
Data type: String
Value:
<enabled/>
<data id="Netlogon_DnsAvoidRegisterRecordsLabel" value=""/>Intune Remediation
# === Detection script ===
# Exported from gporais.com
# Policy: Specify DC Locator DNS records not registered by the DCs
# State: Enabled
# Supported on: At least Windows Server 2003 operating systems or Windows XP Professional
function Test-RegistryValue {
param(
[Parameter(Mandatory = $true)][string]$Path,
[Parameter(Mandatory = $true)][string]$Name,
[object]$Expected,
[ValidateSet('String', 'DWord', 'MultiString')][string]$Kind = 'String',
[switch]$Absent
)
try {
$item = Get-ItemProperty -LiteralPath $Path -Name $Name -ErrorAction Stop
} catch {
return $Absent.IsPresent
}
if ($Absent.IsPresent) { return $false }
$actual = $item.$Name
if ($Kind -eq 'DWord') { return ([int64]$actual) -eq ([int64]$Expected) }
if ($Kind -eq 'MultiString') {
$actualValues = @($actual)
$expectedValues = @($Expected)
if ($actualValues.Count -ne $expectedValues.Count) { return $false }
for ($i = 0; $i -lt $expectedValues.Count; $i++) {
if ([string]$actualValues[$i] -ne [string]$expectedValues[$i]) { return $false }
}
return $true
}
return [string]$actual -eq [string]$Expected
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\Software\Policies\Microsoft\Netlogon\Parameters' -Name 'DnsAvoidRegisterRecords' -Expected '' -Kind String)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Specify DC Locator DNS records not registered by the DCs
# State: Enabled
# Supported on: At least Windows Server 2003 operating systems or Windows XP Professional
$path = 'HKLM:\Software\Policies\Microsoft\Netlogon\Parameters'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'DnsAvoidRegisterRecords' -Value '' -Type StringSCCM scripts
# Exported from gporais.com
# Policy: Specify DC Locator DNS records not registered by the DCs
# State: Enabled
# Supported on: At least Windows Server 2003 operating systems or Windows XP Professional
# SCCM Configuration Item guidance:
# Create a Configuration Item of type "Setting: Script".
# Discovery script: use the Detection script below.
# Remediation script: use the Remediation script below.
# Compliance rule: the Discovery script output equals 'Compliant'.
# === Detection script ===
# Exported from gporais.com
# Policy: Specify DC Locator DNS records not registered by the DCs
# State: Enabled
# Supported on: At least Windows Server 2003 operating systems or Windows XP Professional
function Test-RegistryValue {
param(
[Parameter(Mandatory = $true)][string]$Path,
[Parameter(Mandatory = $true)][string]$Name,
[object]$Expected,
[ValidateSet('String', 'DWord', 'MultiString')][string]$Kind = 'String',
[switch]$Absent
)
try {
$item = Get-ItemProperty -LiteralPath $Path -Name $Name -ErrorAction Stop
} catch {
return $Absent.IsPresent
}
if ($Absent.IsPresent) { return $false }
$actual = $item.$Name
if ($Kind -eq 'DWord') { return ([int64]$actual) -eq ([int64]$Expected) }
if ($Kind -eq 'MultiString') {
$actualValues = @($actual)
$expectedValues = @($Expected)
if ($actualValues.Count -ne $expectedValues.Count) { return $false }
for ($i = 0; $i -lt $expectedValues.Count; $i++) {
if ([string]$actualValues[$i] -ne [string]$expectedValues[$i]) { return $false }
}
return $true
}
return [string]$actual -eq [string]$Expected
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\Software\Policies\Microsoft\Netlogon\Parameters' -Name 'DnsAvoidRegisterRecords' -Expected '' -Kind String)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Specify DC Locator DNS records not registered by the DCs
# State: Enabled
# Supported on: At least Windows Server 2003 operating systems or Windows XP Professional
$path = 'HKLM:\Software\Policies\Microsoft\Netlogon\Parameters'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'DnsAvoidRegisterRecords' -Value '' -Type StringBuilding a multi-setting collection? Add this setting and generate combined .reg / PowerShell / GPO scripts.