Configuring Kerberos authentication for SSRS in native mode - SSRS 2008 R2-2012

Hi,
I've a SSRS native mode installation on a server and a SSAS installation on another server.
In order to configure the Kerberos authentication for SSRS native mode, I need to register one SPN for the report server service, one SPN for SSAS service and to configure SSRS to use the negotiate authentication type, isn't it?
Thanks

Hi pscorca,
If we have applications that only use Kerberos authentication and we are using RSWindowsNegotiate AuthenticationType, we must create a Service Principal Name (SPN) for the Report Server service if we configure it to run as a domain user account.
Before setting up constrained delegation, we must register a
Service Principle Name (SPN) for the Analysis Services instance. We will need the Analysis Services SPN when configuring Kerberos constrained delegation for middle tier services.
There is a document about Enabling Kerberos Authentication for Reporting Services, you can refer to it.
http://blogs.technet.com/b/rob/archive/2011/11/23/enabling-kerberos-authentication-for-reporting-services.aspx
Hoe this helps.
Regards,
Alisa Tang
Alisa Tang
TechNet Community Support

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sachin

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OK so you have SSO enabled for users of the local domain (meaning they click on infoview and it auto logs them in) correct?
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hi Mahender,
Thanks for your posting!
For this issue, you could refer to this document and tutorials (Microsoft Antimalware Whitepaper ). And you need use the Azure Powershell (http://msdn.microsoft.com/en-us/library/azure/dn771718.aspx).
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Will
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Issue in confuguration of Kerberos authentication

Hi all
We are trying to configure Kerberos authentication for single sign-on on a SAP WAS 6.40 Java System. We configured the Kerberos using SPNEGO wizard. After configuring when we tried to login to UME, but it prompted for Username and Password which confirms that single sign on is not working.
In default trace file we got the following info
i. Key for the principal [email protected] not available in default key     tab
ii. [Krb5LoginModule] authentication failed
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iii. Login module com.sun.security.auth.module.Krb5LoginModule from authentication stack com.sun.security.jgss.accept does not authenticate the caller.
iv. LOGIN.FAILED
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1. Why password cannot be obtained from user?
2. Is there a default keytab other than the one created by the spnego wizard?
3. If there is one, then can we add the key for [email protected] in         that file and how?
4. How can this be resolved?
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Your log files are recording an authentication error, so that usually means your login information is incorrect, or just corrupted. Try reseting your Kerberos password, and if that doesn't work, double-check your Kerberos connectivity and configuration settings.

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Hi
I have configured Kerberos authentication for Forms on the server and it works fine, but I cannot get it to work for Reports.
When I access the database for Forms I use a connect string that looks like this: /@tns_name The Forms server is running using a domain user and the database user is externally identified. It just works.
I have tried the same for Reports but it is not accepted. In the URL I have written userid=/@tns_name and the Reports server then asks for user id and password with a pre filled tns_name. I have tried to put the userid parameter in cgicmd.dat but the result is the same. Even enabled SSO in rwservlet.properties using singlesignon>yes</singlesignon> but it just do not work.
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The question is: How do I tell the Reports server that I do not want to apply user id and password but just the tns_name, like /@tns_name
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Questions regarding version compabilities come up quite often, yet the answer is still the same: have a look at the certification matrix http://www.oracle.com/technetwork/developer-tools/forms/oracle-forms-11gr2certmatrix-519680.xls
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cheers

Kerberos Authentication between Sharepoint 2013 Foundation - SSRS 2012 - Oracle 11g failing with ORA-12638: Credential retrieval failed

I have set up SharePoint 2013 Foundation, SharePoint Reporting Services and SQL Server 2012 in a single server. I then created a Data Connection to Oracle 11g. Upon testing the connection, it throws the error “ORA-12638: Credential retrieval failed”.
Given below are the steps of installation and configuration.
Installation till basic authentication:
The installation has been done in a
single server.
Installed SQL Server 2012 (Developer version).
Selected only the following features:
Database Engine Services
Analysis Services
Reporting Services – SharePoint
Reporting Services Add-in for SharePoint Products
Management Tools – Basic
- Management Tools - Complete
2. Installed SQL Server 2012 SP1.
3. Installed SQL Server 2012 SP2.
  4. Installed SharePoint Foundation 2013.
5. Created web application (without Kerberos; we did not even create the SPNs).
      The application pool has been configured to use Reporting Services account since it is a single server installation. This account has been registered as a managed
account.
6. Created Site Collection.
7. Verified that Reporting Services is not installed.
8. Installed SharePoint Reporting Services from SharePoint 2013 Management Shell.
9. Verified that Reporting Services is installed.
10. Created a new SQL Server Reporting Services Service Application and associated the Web Application to the new SQL server Reporting Services Service Application.
11. Verified that SQL Server Reporting Services Service Application and its proxy have started. Reset IIS.
12. Created a Site.
  13. Created a Data Connection library with “Report Data Source” content type.
14. Created a Report Model library with “Report Builder Model” content type.
15. Created a Report library with “Report Builder Report” content type.
16. Uploaded an SMDL to the Report Model library.
  17. Added the top level site to Local Intranet instead of as a Trusted Site in the browser settings.
  18. Able to create and save a report using Report Builder.
Hence, basic authentication is working and SSRS is able to connect to Oracle database.
Next we have to configure Kerberos settings between SharePoint and SQL Server.
Implementation of Kerberos authentication
In the Report Server machine, opened the file C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\15\WebServices\Reporting\rsreportserver.config and added the Authentication Types of RSWindowsNegotiate
and RSWindowsKerberos.
2. Set up the following SPNs.
               a) SQL Server Database Engine service (sqlDbSrv2):
                setspn -S MSSQLSvc/CER1110:1433 CERDEMO\sqlDbSrv2
                setspn -S MSSQLSvc/CER1110.cer.demo.com:1433 CERDEMO\sqlDbSrv2
             In the Delegation tab of the account, selected "Trust this user for delegation to any service (Kerberos only)".
b) Account: SharePoint Setup Admin account (spAdmin2)
     setspn -S HTTP/CER1110:9999 CERDEMO\spAdmin2
                setspn -S HTTP/CER1110.cer.demo.com:9999 CERDEMO\spAdmin2
                In the Delegation tab of the account, selected "Trust this user for delegation to any  service
(Kerberos only)".
c) Account: SQL Server Reporting Service account (sqlRepSrv2)
                   setspn -S HTTP/CER1110 CERDEMO\sqlRepSrv2
                   setspn -S HTTP/CER1110.cer.demo.com CERDEMO\sqlRepSrv2
                   In the Delegation tab of the account, selected "Trust this user for delegation to any service
(Kerberos only)".
3. Configure the Web Application to use “Negotiate (Kerberos)”.
4. Logged in as SharePoint Administrator to the SharePoint server and opened the top level site in the IE browser.
     The Event Viewer logged the login process for the SharePoint Administration account as
Negotiate and not Kerberos.
5. Implemented Kerberos for Oracle database and client.
     Able to connect to the Oracle database via Kerberos authentication using SQL Plus.
6. Turn on Windows Firewall.
7. While testing the site's data connection using Kerberos settings, got the error
“Can not convert claims identity to windows token. This may be due to user not logging in using windows credentials.”
      Note: The Data Connection for basic authentication still worked.
8. Created a Claims to Windows Token Service account (spC2WTS2).
9. Started the Claims to Windows Token Service.
10. Registered the Claims to Windows Token Service account as a Managed Account.
11. Changed the Claims To Windows Token Service to use the above managed account.
12. Verified that the Claims to Windows Token Service account (spC2WTS2) is automatically added to the WSS_WPG local group on the SharePoint box.
      Note: The Reporting Services service account is also a part of the WSS_WPG local group.
13. Added the Claims to Windows Token Service account (spC2WTS2) to the Local Admin Group on the machine having the SharePoint App Server.
14. In the SharePoint box, added the Claims to Windows Token Service account (spC2WTS2) in the Act as part of the operating system policy right.
15. The Claims to Windows Token Service account (spC2WTS2) has the WSS_WPG group configured.
      When the C2WTS service was configured to use the managed account Claims to Windows Token Service account (spC2WTS2) earlier, the spC2WTS2 account was automatically
added to the WSS_WPG local group on the SharePoint box. The WSS_WPG group in turn is configured in c2wtshost.exe.config file.
16. Verified that the Reporting Services account is a managed account and part of the WSS_WPG group.
17. Earlier Service Application Pool - SQL Server Reporting Services App Pool service was associated with the SharePoint Admin account.
      Changed this to associate the Reporting Service account with the Service Application Pool - SQL Server Reporting Services App Pool service.
18. Changed the delegation of the Reporting Service account to constrained delegation with Protocol Transitioning. This is because we are transitioning from one authentication scheme (Claims) to another (Windows Token).
      For this, the delegation has been changed to "Trust this user for delegation to specified services only". Also, selected the sub radio button "Use
any authentication protocol". Selected the Oracle Kerberos service as the service to which this account can present delegated credentials.
      Note: The Reporting Service account already had an HTTP SPN.
19. Next, the goal was to make the Claims To Windows Token Service account match the Reporting Service account.
       For this, we created a fake SPN for the Claims To Windows Token Service account since the delegation tab was missing.
       The delegation has been changed to "Trust this user for delegation to specified services only". Also, selected the sub radio button "Use any
authentication protocol". Selected the Oracle Kerberos service as the service to which this account can present delegated credentials.
20. Restarted the SharePoint server.
21. Tested the data connection with the Kerberos settings again.
       Got the error
“ORA-12638: Credential retrieval failed”.
Can anyone tell me what is wrong with this setup?

http://www.freeoraclehelp.com/2011/10/kerberos-authentication-for-oracle.html
Problem4: ORA-12638: Credential retrieval failed
Solution: Make sure that SQLNET.KERBEROS5_CC_NAME is set in sqlnet.ora and okinit has been run before attempting to connect to the database.
Do check
http://webcache.googleusercontent.com/search?q=cache:5a2Pf3FH7vkJ:externaltable.blogspot.com/2012/06/kerberos-authentication-and-proxy-users.html+&cd=5&hl=en&ct=clnk&gl=in
If this helped you resolve your issue, please mark it Answered. You can reach me through http://itfreesupport.com/

Kerberos Authentication Setup for MSCRM in cross forest oneway trust environment.

Dear All,
Kindly help related to implement Kerberos authentication on CRM application with multiple Forest environment. My environment details are as below:
Number of forests: 2
1. First is with name of domain1.local
2. Second is with name of domain2.local
Trust Level: One Way trust from domain1 and domain2.
CRM Farm Details:
1. 1 CRM(APP + WEB)Server (CRMAPP-01.domain1.local)
2. 1 SQL Server (CRMSQL-01.domain1.local)
3. 1 CRM SSRS Server (CRMSSRS-01.domain.local)
4. CRM site url: http://mscrminternal.domain.local/MSORG1
*I have successfuly configured Kerberos authentication and everything is working fine once try to access for Users of domain1.
But once I tried to access for users of domain2. I am getting following error.
HTTP Error 401 - Unathorized: Access denied.
*If i switch to NTLM, I can access CRM site for domain2 and domain1 users without any issue.
I read MS article, Kerberos delegation can be established if one way FOrest trust is present.
Please help me to understand if Kerberos is possible to setup cross forest oneway trust.
Regards
Gyan
GYAN SHUKLA

Hi Gyan,
I assume that you have solved this issue by synchronizing time between Domain Controllers, right?
Then your last reply should be marked as answer.
If this issue still persists, pelase feel free to let us know.
Best Regards,
Amy

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