Regarding Shibboleth IDP Login Page.

[Kevin P. Foote]

On Tue, 18 Dec 2012, Naresh Thota wrote:

-> Please Provide Some Suggestions.

Your desired scenario is not the way a SAML login flow works. And as
Peter pointed out would be pretty scary if it did. :-)

The use of credentials is done at the IdP and generally ONLY at the IdP. 

Below are a couple of links that are a great place to start reading on
how the SAML flow works and how this all fits together. HTH

https://wiki.shibboleth.net/confluence/display/SHIB2/UnderstandingShibboleth

https://wiki.shibboleth.net/confluence/display/SHIB2/FlowsAndConfig

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thanks
  kevin.foote