Hi guys,
I wonder if anyone there could show me the way to get out from this,
I've got plenty of messages in System event viewer about:
case1:
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The KDC encountered duplicate names while processing a Kerberos authentication request. The duplicate name is MSSQLSvc/CSOPTO-FS1.csopto.com:bkupexec (of type DS_SERVICE_PRINCIPAL_NAME). This may result in authentication failures or downgrades to NTLM. In order to prevent this from occuring remove the duplicate entries for MSSQLSvc/CSOPTO-FS1.csopto.com:bkupexec in Active Directory.
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tHANKS
- <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
- <System>
<Provider Name="Microsoft-Windows-Kerberos-Key-Distribution-Center" Guid="{3FD9DA1A-5A54-46C5-9A26-9BD7C0685056}" EventSourceName="KDC" />
<EventID Qualifiers="49152">11</EventID>
<Version>0</Version>
<Level>2</Level>
<Task>0</Task>
<Opcode>0</Opcode>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2015-05-21T02:03:05.000Z" />
<EventRecordID>288348</EventRecordID>
<Correlation />
<Execution ProcessID="0" ThreadID="0" />
<Channel>System</Channel>
<Computer>CSOPTO-FS1.csopto.com</Computer>
<Security />
</System>
- <EventData>
<Data Name="Name">MSSQLSvc/CSOPTO-FS1.csopto.com:bkupexec</Data>
<Data Name="Type">DS_SERVICE_PRINCIPAL_NAME</Data>
<Binary />
</EventData>
</Event>
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case2:
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A Kerberos Error Message was received:
on logon session
Client Time:
Server Time: 2:3:5.0000 5/21/2015 Z
Error Code: 0x7 KDC_ERR_S_PRINCIPAL_UNKNOWN
Extended Error: 0xc0000035 KLIN(0)
Client Realm:
Client Name:
Server Realm: CSOPTO.COM
Server Name: MSSQLSvc/CSOPTO-FS1.csopto.com:bkupexec
Target Name: MSSQLSvc/CSOPTO-FS1.csopto.com:bkupexec@CSOPTO.COM
Error Text:
File: 9
Line: e2d
Error Data is in record data.
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- <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
- <System>
<Provider Name="Microsoft-Windows-Security-Kerberos" Guid="{98E6CFCB-EE0A-41E0-A57B-622D4E1B30B1}" EventSourceName="Kerberos" />
<EventID Qualifiers="32768">3</EventID>
<Version>0</Version>
<Level>2</Level>
<Task>0</Task>
<Opcode>0</Opcode>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2015-05-21T02:03:05.000Z" />
<EventRecordID>288349</EventRecordID>
<Correlation />
<Execution ProcessID="0" ThreadID="0" />
<Channel>System</Channel>
<Computer>CSOPTO-FS1.csopto.com</Computer>
<Security />
</System>
- <EventData>
<Data Name="LogonSession" />
<Data Name="ClientTime" />
<Data Name="ServerTime">2:3:5.0000 5/21/2015 Z</Data>
<Data Name="ErrorCode">0x7</Data>
<Data Name="ErrorMessage">KDC_ERR_S_PRINCIPAL_UNKNOWN</Data>
<Data Name="ExtendedError">0xc0000035 KLIN(0)</Data>
<Data Name="ClientRealm" />
<Data Name="ClientName" />
<Data Name="ServerRealm">CSOPTO.COM</Data>
<Data Name="ServerName">MSSQLSvc/CSOPTO-FS1.csopto.com:bkupexec</Data>
<Data Name="TargetName">MSSQLSvc/CSOPTO-FS1.csopto.com:bkupexec@CSOPTO.COM</Data>
<Data Name="ErrorText" />
<Data Name="File">9</Data>
<Data Name="Line">e2d</Data>
<Binary>3015A103020103A20E040C350000C00000000001000000</Binary>
</EventData>
</Event>
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