LDAP Configuration in obiee11g

for more clear steps in this context.
http://download.oracle.com/docs/cd/E14571_01/bi.1111/e10543/sso.htm#CEGJJFED

http://download.oracle.com/docs/cd/E21764_01/bi.1111/e10543/toc.htm.

SSO can be implemented in OBIEE 11g by steps like

1. Configure the SSO authentication provider.
2. Configure HTTP proxy.
etc