Baseline recommendations to customize the template to individual enterprise requirements. More Details. Hide Details Search Code: Last Revised: May 18, Tags: Policy , security , authentication , Security Policy , database security , policy enforcement , desktop security , data security , content security , authorization , identification , corporate security policy , policy development , policy management , security benefits , work policy , personal identification.
Social Share on Social. Select Social Platform:. Get Access. Passwords may not be shared or disclosed to anyone else. All members of the University of Florida Constituency are responsible for reporting any suspicious use of assigned authentication mechanisms.
Anyone that reasonably believes his or her password to be known by anyone else must change it immediately. Lost or stolen authentication devices are to be reported immediately.
Information Security Managers ISM are responsible for verifying that information systems under their control, and those intended for acquisition or development by their unit, comply with this policy. The Vice President and Chief Information Officer is responsible for implementing systems and specifications to facilitate unit compliance with this policy.
When using Kerberos authentication with Kerberos armoring which is part of Dynamic Access Control , the Key Distribution Center is provided with the TGT of the host from which the user is authenticating. The content of this armored TGT is used to complete an access check to determine if the host is allowed.
When a user signs in to Windows or enters their domain credentials in a credential prompt for an application, by default, Windows sends an unarmored AS-REQ to the domain controller. If the user is sending the request from a computer that does not support armoring, such as computers running Windows 7 or Windows Vista, the request fails.
The domain controller in a domain running Windows Server R2 queries for the user account and determines if it is configured with an authentication policy that restricts initial authentication that requires armored requests.
Because armoring is required, the user can attempt to sign in by using a computer running Windows 8. The domain controller performs an access check by using the configured access control conditions and the client operating system's identity information in the TGT that was used to armor the request. Even when operating systems support Kerberos armoring, access control requirements can be applied and must be met before access is granted. Users sign in to Windows or enter their domain credentials in a credential prompt for an application.
If the user is sending the request from a computer that supports armoring, such as Windows 8. The domain controller performs an access check by using the configured access control conditions and the system's identity information in the TGT that is used to armor the request. The access check succeeds. When an account is not allowed and a user who has a TGT attempts to connect to the service such as by opening an application that requires authentication to a service that is identified by the service's service principal name SPN , the following sequence occurs:.
The domain controller in a domain running Windows Server R2 looks up SPN1 to find the Active Directory Domain Services account for the service and determines that the account is configured with an authentication policy that restricts service ticket issuance. The domain controller performs an access check by using the configured access control conditions and the user's identity information in the TGT.
The access check fails. When an account is allowed because the account meets the access control conditions that are set by the authentication policy, and a user who has a TGT attempts to connect to the service such as by opening an application that requires authentication to a service that is identified by the service's SPN , the following sequence occurs:.
The following table describes the events that are associated with Protected Users security group and the authentication policies that are applied to authentication policy silos. For troubleshooting steps that use these events, see Troubleshoot Authentication Policies and Troubleshoot events related to Protected Users. An event is logged in the domain controller to indicate that NTLM authentication failed because access control restrictions are required, and those restrictions cannot be applied to NTLM.
Displays the account, device, policy, and silo names. An event is logged in the domain controller to indicate that a Kerberos TGT was denied because the device did not meet the enforced access control restrictions. Displays the account, device, policy, silo names, and TGT lifetime. In audit mode, an informational event is logged in the domain controller to determine if a Kerberos TGT will be denied because the device did not meet the access control restrictions.
An event is logged in the domain controller to indicate that a Kerberos service ticket was denied because the user, device, or both do not meet the enforced access control restrictions. Displays the device, policy, and silo names. In audit mode, an informational event is logged on the domain controller to indicate that a Kerberos service ticket will be denied because the user, device, or both do not meet the access control restrictions.
Credentials Protection and Management. Protected Users Security Group. Skip to main content. This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. Is this page helpful? Please rate your experience Yes No. Any additional feedback? Note It is possible to set an authentication policy on a set of accounts without associating the policy to an authentication policy silo.
Note The domain account must have a configured TGT lifetime and must be either directly linked to the policy or indirectly linked through the silo membership. Note The domain account must be either directly linked to the policy or indirectly linked through the silo membership.
Note The domain account must be either directly linked or linked through silo membership to an audited authentication policy which allows authentication to a user, device or service,.
Note If legacy workgroup restrictions are configured, those also need to be met. Submit and view feedback for This product This page. View all page feedback.
In this article. An instance of this class defines authentication policies and related behaviors for assigned users, computers, and services. Specifies whether the authentication policy silo is enforced. Specifies whether the authentication policy is enforced.
This attribute is used to determine the set of principals allowed to authenticate to a service running under the user account. This attribute is used to determine the set of devices to which a user account has permission to sign in. Specifies the maximum age of a Kerberos TGT that is issued to a user expressed in seconds.
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