What is the event ID for Kerberos authentication?

Note: Event ID 4768 is logged for authentication attempts using the Kerberos authentication protocol.

What causes Kerberos pre-authentication failed?

This problem can occur when a domain controller doesn’t have a certificate installed for smart card authentication (for example, with a “Domain Controller” or “Domain Controller Authentication” template), the user’s password has expired, or the wrong password was provided.

What Eventcode 4648?

When an account logon is attempted by a process by explicitly specifying the credentials of that account, event 4648 is generated. This is usually generated by batch-type configurations.

What is the event ID for failed logon?

Event ID 4625 (viewed in Windows Event Viewer) documents every failed attempt at logging on to a local computer. This event is generated on the computer from where the logon attempt was made.

How do I enable Kerberos in Active Directory?

Configuring Kerberos authentication with Active Directory

1. Enter the user’s First name and User logon name.
2. Specify the Password and confirm the password. Select the User cannot change password and Password never expires check boxes.
3. Verify that you have not selected the Require preauthentication check box.

What is Kerberos error?

Kerberos Error Codes is a Result Code from Kerberos that implies something went wrong. Kerberos related Result Code messages can appear on the authentication server KDC, the application server, at the user interface, or in network traces of Kerberos packets.

What is Kerberos pre authentication?

Kerberos Pre-Authentication is a security feature which offers protection against password-guessing attacks. The AS request identifies the client to the KDC in Plaintext. If Kerberos Pre-Authentication is enabled, a Timestamp will be encrypted using the user’s password hash as an encryption key.

What is the event ID?

Event identifiers uniquely identify a particular event. Each event source can define its own numbered events and the description strings to which they are mapped in its message file. Event viewers can present these strings to the user.

How to enable event ID 31 in Windows Server 2012 (Kerberos)?

In Windows Server 2012 (and later versions), Windows can log an event (Event ID 31) if the token size passes a certain threshold. To enable this behavior, you have to configure the Group Policy setting Computer ConfigurationAdministrative TemplatesSystemKDCWarning for large Kerberos tickets. Calculating the maximum token size

How is initial user authentication integrated with the Kerberos key distribution center?

Initial user authentication is integrated with the Winlogon service single sign-on architecture. The Kerberos Key Distribution Center (KDC) is integrated in the domain controller with other security services in Windows Server. The KDC uses the domain’s Active Directory Domain Services (AD DS) as its security account database.

What are the error codes for Kerberos ticket Flags?

Kerberos ticket flags. Failure Code [Type = HexInt32]: hexadecimal failure code of failed TGT issue operation. The table below contains the list of the error codes for this event as defined in RFC 4120: Smart card logon is being attempted and the proper certificate cannot be located.

Where is the Kerberos token stored?

Starting with Windows Server 2012, Kerberos also stores the token in the Active Directory Claims information (Dynamic Access Control) data structure in the Kerberos ticket.