GPO tool

Group Policy made searchable

A free ADMX browser or comparison tool for IT administrators.Search policies, find registry keys, and see exactly what each setting writes to the Windows Registry. Or compare two GPO backups to see exactly what has changed between them.

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Deny delegating default credentials

This policy setting applies to applications using the Cred SSP component (for example: Remote Desktop Connection).

If you enable this policy setting, you can specify the servers to which the user's default credentials cannot be delegated (default credentials are those that you use when first logging on to Windows).

If you disable or do not configure (by default) this policy setting, this policy setting does not specify any server.

Note: The "Deny delegating default credentials" policy setting can be set to one or more Service Principal Names (SPNs). The SPN represents the target server to which the user credentials cannot be delegated. The use of a single wildcard character is permitted when specifying the SPN.

For Example:
TERMSRV/host.humanresources.fabrikam.com Remote Desktop Session Host running on host.humanresources.fabrikam.com machine
TERMSRV/* Remote Desktop Session Host running on all machines.
TERMSRV/*.humanresources.fabrikam.com Remote Desktop Session Host running on all machines in .humanresources.fabrikam.com

This policy setting can be used in combination with the "Allow delegating default credentials" policy setting to define exceptions for specific servers that are otherwise permitted when using wildcard characters in the "Allow delegating default credentials" server list.

Registry Information

VendorMicrosoft
ProductCred Ssp
CategoryCredentials Delegation
Applies toComputer Configuration
Supported onWindows Vista
Registry Key[HKLM]SoftwarePoliciesMicrosoftWindowsCredentialsDelegation
Value NameDenyDefaultCredentials
TypeREG_DWORD
Enabled value1
Disabled value0

Policy Settings

Add servers to the list:

Registry Key[HKLM]SoftwarePoliciesMicrosoftWindowsCredentialsDelegationDenyDefaultCredentials
Value NameDenyDefaultCredentials_Name
TypeREG_SZ

Concatenate OS defaults with input above

Registry Key[HKLM]SoftwarePoliciesMicrosoftWindowsCredentialsDelegation
Value NameConcatenateDefaults_DenyDefault
TypeREG_DWORD
Defaultfalse