It's been a while for me for Kerberos so bear that in mind :)

The line here "Once we set the SPN, the auth_schema for farm will be 
'Kerberos'" throws me off because it infers that as soon as you do it, you have 
a Kerberos farm. But when you add the SPN in AD and it makes no difference to 
SharePoint's behaviour by default. The decision to go Kerberos is based on 
whether you choose NTLM or Negotiate at the web app. Thus, any other web apps 
created as NTLM will happily ignore the SPN stuff altogether as its not using 
Kerberos in the first place.

Regards

Paul

From: [email protected] [mailto:[email protected]] On Behalf Of 
Ajay
Sent: Monday, 11 February 2013 6:13 AM
To: ozMOSS
Subject: Re: Sp 2010 - Kerberos

Hi Paul,
Thanks...

Once we set the SPN, the auth_schema for farm will be 'Kerberos' but it will 
only show for the services (app pool) being used for delegation.
>From the guide
[
Select s.session_id, s.login_name, s.host_name, c.auth_scheme
from
sys.dm_exec_connections c inner join  sys.dm_exec_sessions s
on c.session_id = s.session_id

]

I mean it will not affect to create future web apps in NTLM mode and not affect 
the Central Admin.

Cheers
Ajay

On Mon, Feb 11, 2013 at 11:05 AM, Paul Culmsee 
<[email protected]<mailto:[email protected]>> wrote:
Hi

You need to register the SPN yes, and then you need to delegate to it from any 
account that might access it. That means the claims to windows token account, 
service account and web app account.

Regards

Paul

From: [email protected]<mailto:[email protected]> 
[mailto:[email protected]<mailto:[email protected]>] On Behalf 
Of Ajay
Sent: Monday, 11 February 2013 5:56 AM
To: ozMOSS
Subject: Sp 2010 - Kerberos

Hi Guys,

I have to set up Kerberos for BI stuff like Excel Services, Performance Point, 
SSRS and Analysis services

I have downloaded the 246 page guide from Microsoft.. which looks good.

I have one quick question... do we need to enable Kerberos for Sql Server also?

like the following
SetSPN -S MSSQLSVC/MySQLCluster.vmlab.local:1433 vmlab\svcSQL

I think as Sql Server is not delegating credentials than it does not need to be 
Kerberos enabled or does it need to be.

Cheers
Ajay






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