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CA Siteminder Interview Questions and Answers

Explain Siteminder Request Flow or How does siteminder works?



Answer #1

CA Siteminder can be used to provide Single Sign On facility to web applications hosted on some webservers.
1. A user tries to access a web page eg. index.html from a web browser
http://www.simpletute.org/sitemap/index.html
2. The Web Agent installed on the webserver intercepts this request and checks with the policy server whether this web page (index.html) is protected or unprotected.

3.If this web page is un-protected the webserver returns the page to the web browser
which in turn displays it to the user.If the  web page is protected than the policy server asks the web browser to ask the user to provide valid credentials to authenticate the user.

4. The users enters the credentials  which are sent to the policy server by the web browser.The policy server sents a request to the policy store to confirm the validity of the credentails submitted by the user.

5.   If the credentials are incorrect the policy server sents a insufficent access message to the web bowser.If the credentials are correct the policy server returns the web page to the web browser.

These is the very basic request flow.If we go indepth there are many more steps that are completed in this authentication process. 

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Answers Answered By: Vaibhav [4 Grey Star Level]

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