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IBM i Kerberos Authentication (SSSD Native Integration)
The existing IBM i SSO support provided by NAS & EIM only works with applications that have been Kerberized. Such as ACS or IBM i Access.
To extend the reach & build on the features already provided by NAS & EIM an enhancement is required for IBM i to pass authentication requests to a remote, trusted Kerberos server.
Equivalent functionality is available in Linux using the System Security Services Daemon (SSSD).
This enhancement will enable SSO support for any existing IBM i application that uses an IBM i user profile & password without requiring changes to the application.
I acknowledge this is not true SSO but the next best thing – same-sign-on vs single-sign-on.
For a client-server or web application running on the IBM i where users access the application using a IBM i user profile & password. When the user is prompted & enters their username & password combination, the IBM i looks up the EIM associations & passes the authentication request to the Microsoft AD Kerberos server set-up in Network Authentication Services. The Kerberos authentication server authenticates the user password combination & the user gains access to the application (provided the password is correct).
No application changes are required & the user has fewer passwords to manage.
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