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Microsoft.Policies.Edge• Both

Disable CNAME lookup when negotiating Kerberos authentication

Determines whether the generated Kerberos SPN is based on the canonical DNS name (CNAME) or on the original name entered. If you enable this policy, CNAME lookup is skipped and the server name (as entered) is used. If you disable this policy or don't configure it, the canonical name of the server is used. This is determined through CNAME lookup.

Policy Details

Policy Name
DisableAuthNegotiateCnameLookup
Registry Key
Software\Policies\Microsoft\Edge
Value Name
DisableAuthNegotiateCnameLookup
Supported On
Microsoft Edge version 77, Windows 7 or later
Policy State Values
Enabled: 1
Disabled: 0
Available Languages
en-us