Information Technology Reference
In-Depth Information
Step 1:
The browser attempts to access the application and the CAS interceptor
redirects it to the CAS SSO server as usual.
Fig 21: CAS SPNEGO Step 1
The default behaviour of CAS is to try various types of authentication
mechanisms in a particular order (as specified in a configuration file) until
one of them successfully authenticates the user. For example, CAS can try
SPNEGO first and if that fails, it can display a login form. Alternatively, the
interceptor can provide a hint of some sort to CAS that this access requires
to be authenticated through SPNEGO rather than a login form. We'll talk
about a simple way to do this at the end of this discussion.
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