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 – computers send secure dynamic updates only when nonsecure dynamic updates are refused. Only unsecure – computers send only nonsecure dynamic updates. Only secure – computers send only secure dynamic updates. If you enable this policy setting computers 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 computers 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.

Additional Information

  1. Registry path is:

    HKEY_LOCAL_MACHINE -> Software -> Policies -> Microsoft -> Windows NT -> DNSClient # UpdateSecurityLevel

  2. The Administrative Template path is:

    Network -> DNS Client


* Making mistakes while changing registry values can affect your system adversely. We recommend you to create a System Restore point before making registry manipulation. If you're new to Registry Editor, read this beginner's guide.
** To locate the registry and administrative template path, checkout beginner's guide.
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