CAS server?
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 I'm looking at authenticating against a CAS (Central Authentication Service) server for web SSO. I don't know how to do it so I'm looking at setting up a VM with a CAS server that I can test against. What are the most common implementations of a CAS server? 
 Also please share any tips, info or resources on where I should start.
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 Apereo is the reference CAS server and is ooen source. 
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 WSO2 Identity Server can also do CAS authentication. 
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 @Pete-S Auth0 ? 
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 I'd be interested in hearing what you try out and how you are using the solution. 



