ADMX Viewer
Microsoft.Policies.DNSClient• Machine

Update security level

Specifies the security level for dynamic DNS updates. To use this policy setting, click Enabled and then select one of the following values: Unsecure followed by secure - the DNS client sends secure dynamic updates only when nonsecure dynamic updates are refused. Only unsecure - the DNS client sends only nonsecure dynamic updates. Only secure - The DNS client sends only secure dynamic updates. If you enable this policy setting, DNS clients that attempt to send dynamic DNS updates will use the security level that you specify in this policy setting. If you disable this policy setting, or if you do not configure this policy setting, DNS clients will use local settings. By default, DNS clients attempt to use unsecured dynamic update first. If an unsecured update is refused, clients try to use secure update.

Policy Details

Policy Name
DNS_UpdateSecurityLevel
Registry Key
Software\Policies\Microsoft\Windows NT\DNSClient
Supported On
At least Windows Server 2003 operating systems or Windows XP Professional
OMA-URI (CSP)
ADMX_DnsClient/DNS_UpdateSecurityLevel
OS Build Version:10.0.22000, 10.0.19043.1202, 10.0.19042.1202, 10.0.19041.1202
CSP Version:10.0
Conflict Resolution:LastWrite
Allowed Editions:
EnterpriseEnterprise NProfessionalProfessional NEnterprise EvaluationEnterprise N EvaluationEducationEducation NEnterprise SEnterprise S NEnterprise S EvaluationEnterprise S N EvaluationHolographic BusinessPro Single LanguagePro ChinaPro WorkstationPro Workstation NPro For EducationPro For Education NEnterprisegEnterprisegnServerrdshIotenterpriseIotenterprisesCloudeditionnCloudeditionIotenterpriseskIotenterpriseseval
Available Languages
en-us

Configuration Elements

Update security level:

Type: enum

Allowed Values
  • 256 Only secure
  • 16 Only unsecure
  • 0 Unsecure followed by secure