SSO with Header Variable Authentication

[Former Member]

Hi All,

I am trying to implement SSO from Non-SAP system (CAS - Central authentication server) to SAP Portal.

I modified the login stack to use Header authentication module as per the below link and changed the ticket template to use Header Auth Login Module.

http://help.sap.com/saphelp_nw73/helpdata/en/4a/47abb3e1f41cd4e10000000a421937/frameset.htm

To test - a JSP have been developed which set's the Header variable IV_HTTP_USER and redirects to SAP Portal. when we test this JSP the Header login module doesn't succeed and Login page come's up.

When i do trace using the Security Troubleshooting wizard for Authentication type - I see that IV_HTTP_USER is null.

Few Questions that i have:

1. Do we have to change the authschemes file to include the header authscheme ? I ask this because of the discussion from the below thread.

http://scn.sap.com/thread/2127692

2. In case we have - i made the changes to authscheme file as mentioned in the above discussion. But when i navigate to NWA->Configuration->Auth and Single Signon  - the information says Invalid file.

Please help.

Thanks

Hussain

[Former Member]

Have you verified that the header variable is set and passed on to AS JAVA? You could use HttpFox in Firefox to verify, for example. No need to modify authentication schemes, header scheme is included by default.

http://help.sap.com/saphelp_nw73ehp1/helpdata/en/53/a87642ac86d142e10000000a1550b0/frameset.htm