You need to ‘integrate’ Shibboleth IDP 3 with CAS This means that Shibboleth uses CAS as the authentication module to authenticate users. This is a Shibboleth IDP external authentication plugin that delegates to CAS
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Integrate Shibboleth IDP with CAS
This ensures that all authentication has taken place within CAS (which is better for auditing, session management etc.) Furthermore, if someone has already authenticated against CAS and needs access to a SAML application, Shibboleth can pass the take place within CAS and not within other systems for application access.
The error...
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However the issue is as follows:
Step 1: Download repository
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You need to download the github https://github.com/Unicon/shib-cas-authn3
Step 2: Clone repository
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Step 2: Within your eclipse IDE, go to the Java EE window, locate the git repository and clone a new repository
Step 3: Confirm repository
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Keep everything as default and click finish
Step 4: Move the shibcas into the Shibboleth IDP directory
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You then need to locate the Shib-cas directory that can be located outside your eclipse IDE. The Shibcas directory needs to be copied over to your shibbolethIDP\flows\authn directory as illustrated in the diagram
Step 5: Move the shibcas
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Move the shibcas into the Shibboleth IDP directory
Step 6: Modify the IDP web.xml
Modify the IDP web.xml
Step 7: Modify the idp.properties
Then add the following values within the idp.properties file (notice the hostnames are dependent based on the environment)
# Regular expression matching login flows to enable, e.g. IPAddress|Password
idp.authn.flows=Shibcas
shibcas.casServerUrlPrefix=https://CASSERVER/cas
shibcas.casServerLoginUrl = ${shibcas.casServerUrlPrefix}/login
shibcas.serverName=https://SHIBSEVER
About the author
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Daniel has built from scratch this blog as well as technicalconfessions.com
Follow Daniel on twitter @nervouswiggles
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