| Event Id | 19011 |
| Source | MSSQL$MAINSERVER |
| Description | SuperSocket info: (SpnRegister) : Error <error code>. |
| Event Information | When SQL Server starts on a computer that is running Microsoft SQL Server 2000, the SQL Server program always attempts to register the virtual server in the Active Directory. You may see the following warning in the Microsoft Windows NT Event Log: Warning SuperSocket Info: (SPNRegister) : Error 1355 Event Category 8 Event ID 19011 This message is not an error message. This text is only a warning that SQL Server was not able to register a Service Principal Name (SPN), which indicates that the security mechanism that will be used is Microsoft Windows NT Challenge\Response (NTLM) authentication instead of Kerberos. CAUSE : The message usually appears because the SQL Server service account is running as a domain user who does not have requisite permissions to register SPNs. With Microsoft Windows 2000 Service Pack 3 (SP3), you can enable Kerberos authentication on server clusters. |
| Reference Links | SQL Server 1355 Warning Errors are Informational SQL Server 2000 Kerberos Support Including SQL Server Virtual Servers on Server Clusters |
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