Cognos 10.2.2 SSO

[cognoslearner1]

Hi ,

I am using Linux platform and cognos 10.2.2  and apache webserver.
There is a requirement to create a SSO. So Please can you advice me with a step.

As I know .. I need to set up

1- Kerberos.
2- Load httpd.conf file in apache with kerberos modules.
3- In cognos configuration file I need to setup
    External Identity Mapping value "True"
    SingleSignonOption value "IdentityMapping".

Is this correct method. I have done in 10.1.1 but havent tried on 10.2.2
So do I need to make any other changes as application server has been changed to Websphere liberty profile ?

Thanks,
Cognoslearner1