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.
| Registry Hive | HKEY_LOCAL_MACHINE or HKEY_CURRENT_USER |
| Registry Path | Software\Policies\Microsoft\Edge |
| Value Name | DisableAuthNegotiateCnameLookup |
| Value Type | REG_DWORD |
| Enabled Value | 1 |
| Disabled Value | 0 |