![]() The specified account is not allowed to authenticate to the machine. Logon Failure: The machine you are logging on to is protected by an authentication firewall. User is required to change password at next logonĮvidently a bug in Windows and not a riskįailure Reason: An Error occurred during Logon The logon request failed because the trust relationship between the primary domain and the trusted domain failed.Īn attempt was made to logon, but the Netlogon service was not started. The user has not been granted the requested logon type (also called the logon right) at this machine Indicates the Sam Server was in the wrong state to perform the desired operation.Ĭlocks between DC and other computer too far out of sync User logon to account disabled by administrator Indicates a referenced user name and authentication information are valid, but some user account restriction has prevented successful authentication (such as time-of-day restrictions). The cause is either a bad username or authentication information User logon with misspelled or bad password User logon with misspelled or bad user account There are currently no logon servers available to service the logon request. The most common status codes are listed in Table 12. For this event, it typically has “ 0xC0000234” value. For this event, it typically has “ Account locked out” value. ![]() Logon ID : hexadecimal value that can help you correlate this event with recent events that might contain the same Logon ID, for example, “ 4624: An account was successfully logged on.”įailure Reason : textual explanation of Status field value. If the SID cannot be resolved, you will see the source data in the event.Īccount Name : the name of the account that was specified in the logon attempt.Īccount Domain : domain or computer name. Event Viewer automatically tries to resolve SIDs and show the account name. Security ID : SID of the account that was specified in the logon attempt. The domain controller was not contacted to verify the credentials. ![]() The new logon session has the same local identity, but uses different credentials for other network connections.Ī user logged on to this computer remotely using Terminal Services or Remote Desktop.Ī user logged on to this computer with network credentials that were stored locally on the computer. The credentials do not traverse the network in plaintext (also called cleartext).Ī caller cloned its current token and specified new credentials for outbound connections. The built-in authentication packages all hash credentials before sending them across the network. The user's password was passed to the authentication package in its unhashed form. Windows Logon Types” contains the list of possible values for this field.Ī user or computer logged on to this computer from the network.īatch logon type is used by batch servers, where processes may be executing on behalf of a user without their direct intervention.Ī service was started by the Service Control Manager.Ī user logged on to this computer from the network. Logon Type : the type of logon that was performed. Uppercase full domain name: CONTOSO.LOCALįor some well-known security principals, such as LOCAL SERVICE or ANONYMOUS LOGON, the value of this field is “NT AUTHORITY”.įor local user accounts, this field will contain the name of the computer or device that this account belongs to, for example: “Win81”. Lowercase full domain name: contoso.local For more information about SIDs, see Security identifiers.Īccount Name : the name of the account that reported information about logon failure.Īccount Domain : subject's domain or computer name. When a SID has been used as the unique identifier for a user or group, it cannot ever be used again to identify another user or group. The system uses the SID in the access token to identify the user in all subsequent interactions with Windows security. Each time a user logs on, the system retrieves the SID for that user from the database and places it in the access token for that user. Each account has a unique SID that is issued by an authority, such as an Active Directory domain controller, and stored in a security database. If the SID cannot be resolved, you will see the source data in the event.Ī security identifier (SID) is a unique value of variable length used to identify a trustee (security principal). Security ID : SID of account that reported information about logon failure. Minimum OS Version: Windows Server 2008, Windows Vista. For recommendations, see Security Monitoring Recommendations for this event.
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