Cannot Generate Sspi Context Microsoft Sql Server Error 0 2008
Contents |
MichelJanuary 13, 20110 0 0 0 Problem description: We were not able to make a cannot generate sspi context fix connection on SQL Server 2008 from a remote server with
Cannot Generate Sspi Context Microsoft Sql Server 2012
Windows account. We got the error message: cannot generate SSPI context: 9649 A security (SSPI) the target principal name is incorrect. cannot generate sspi context sql 2012 error occurred when connecting to another service broker: . Check the Windows Event Log for more information.…11248 A corrupted message has been received. The the target principal name is incorrect. cannot generate sspi context. (.net sqlclient data provider) SSPI login header is invalid.…17806 SSPI handshake failed with error code X, state %d while establishing a connection with integrated security; the connection has been closed. …Connection handshake failed. Work done: We followed the troubleshooting step below: Step 1: made a TELNET on machine port and confirmed that the portof
Odbc Sql Server Driver Cannot Generate Sspi Context
SQL Server instance wasopen Step 2: We checked if the SPN for my instance SQL server exist with command below: Start >> Run >> CMD >> Setspn -L
comments for SQL Server ★★★★★★★★★★★★★★★ SQL Server ConnectivityOctober 14, 200532 0 0 0 Users sometime see the “Cannot cannot generate sspi context sql server 2008 r2 management studio Generate SSPI Context” error message. A very good source for system.data.sqlclient.sqlexception: cannot generate sspi context. troubleshooting the error is http://support.microsoft.com/default.aspx?scid=kb;en-us;811889. You can also find good information at Using Kerberos with SQL
The Target Principal Name Is Incorrect. Cannot Generate Sspi Context. Sharepoint 2013
Server. Here, I talk about one extreme situation: SQL server was running under Local System and was shutdown accidentally. The user then decides to run SQL https://blogs.technet.microsoft.com/mdegre/2011/01/13/sql-server-2008-connectivity-issue-cannot-generate-sspi-context/ server under a different account, e.g local account, domain account etc., for whatever reasons. Then he/she hit this “Cannot Generate SSPI Context” error when the client tries to connect the server. Keep in mind this only happens when TCP is enabled for the SQL server and is used by the client to connect https://blogs.msdn.microsoft.com/sql_protocols/2005/10/14/cannot-generate-sspi-context-error-message-more-comments-for-sql-server/ the server.
What happened here is: When SQL server ran under Local System, it had successfully registered the Service Principle Name (SPN) for the service. The SPN is kept in the Active Directory and should be de-registered when the server is shutdown. Due to the accidental shutdown, SQL server failed to de-register the SPN. When the client connects to the server using TCP, it can find the SPN in the Active Directory and Kerberos will be used to perform the security delegation. However, the new account is not the correct container of the SPN, and Kerberos will fail. When this happens, some people may choose to reinstall SQL Server or even the whole OS. They may be frustrated by the fact that the problem is still there if local or domain account is again chosen as the service account. The SPN in the Aaccount to run the SQL service. I’m sure you do too! However, once you do the right thing and change the SQL Service account, you may start getting the following error message when attempting to https://cmatskas.com/fixing-error-cannot-generate-sspi-context-after-changing-sql-service-account/ connect to the sql server: “The target principal name is incorrect. Cannot generate SSPI context.” The explanation, as given by Microsoft in this KB article If you run the SQL Server service under the LocalSystem account, the http://www.sqldbadiaries.com/2011/09/05/how-the-cannot-generate-sspi-context-error-was-fixed/ SPN is automatically registered and Kerberos authentication interacts successfully with the computer that is running SQL Server. However, if you run the SQL Server service under a domain account or under a local account, the attempt to cannot generate create the SPN will fail in most cases because the domain account and the local account do not have the right to set their own SPNs. When the SPN creation is not successful, this means that no SPN is set up for the computer that is running SQL Server. If you test by using a domain administrator account as the SQL Server service account, the SPN is successfully created because the domain administrator-level cannot generate sspi credentials that you must have to create an SPN are present. There are 3 ways to fix the problem: Revert to using the Network Service or Local System account (NOT RECOMMENDED) Assign the domain account to the Domain Admins group (NOT IDEAL – due to the elevated permissions) Fix the problem by giving the domain account just the appropriate permissions in Active Directory. Permissions required are ServicePrincipalName: Read ServicePrincipalName: Write We will use the 3rd option to fix the error. First, it is good practice to verify that the problem is actually due to permission issues. Log in to the server where you SQL Instance is running. Go to the error logs and look for the last time that the SQL service was restarted. You should find an error message similar to this: Date 10/17/2013 9:29:50 AM Log SQL Server (Archive #1 - 10/17/2013 10:53:00 AM) Source Server Message The SQL Server Network Interface library could not register the Service Principal Name (SPN) [ MSSQLSvc/servername.domainname.net:1433 ] for the SQL Server service. Windows return code: 0x2098, state: 15. Failure to register a SPN might cause integrated authentication to use NTLM instead of Kerberos. This is an informational message. Further action is only required if Kerberos authentication is required by authentication policies and if the SPN has not been manually registere
the connections were failing with the following error. Cannot generate SSPI context Since the domain controller to which this server was connected is known to have connectivity issues, it was decided to restart the SQL Server instance so that. After stopping the SQL Server instance failed to get started. Here is the error message with which it was failing. This KB article nicely explains many of the reasons why we would get "Cannot generate SSPI context" error of which an incorrect or non-existent SPN is one of the reasons. As evident from the error message the service was not starting due to some issues with the SPN (Service Principal Name). Before I start writing about how this issue was fixed, let us try to get some information about SPN. What is Service Principal Name (SPN)? SPN is a unique identifier for each service that is running on servers. With the help of SPN the clients which try to connect to the service can easily identify it. SPN for each service is registered in the Active Directory. SPNs can be registered under a Computer account or as a user account in Active Directory. The SPN for a service is created in the following format.