How to configure SSO?

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Hello,

I have just installed Plesk 8.2.0 and SiteBuilder 4.0 on RHEL5.

Now I'm trying to configure SSO.

I have found some documentation about the "sso" command (located in Plesk's bin directory), but I really coundn't figure out how to configure it.

You can turn SSO on, specify a sso server url and relay url, but... where is the SSO server? How do I configure it?

Thank you

Alexandre