I think that they are. From my recollection that was what came up on the Bb admin list a couple of years ago. You have to specify a logout URL, and it sends the user to it after it kills its own session. People are providing the IdP logout URL, so that kicks it off. My suggestion would be to provide a different logout URL other than the IdP.

On 01/30/2018 11:38 AM, Ray Bon wrote:
I certainly hope that Bb is not sending a logout request to CAS when 'its' session expires (not user initiated). That would single logout the user out of all services (that participate in SLO) regardless of CAS settings ==> unhappy users & confused administrators.

Ray

On Tue, 2018-01-30 at 09:42 -0600, Richard Frovarp wrote:
Do you have a logout URL configured? Best I know is that when a session expires in Bb, it kills the Bb session, then sends the browser to the IdP logout URL, which would kill your TGT.

On 01/30/2018 07:08 AM, Michael O Holstein wrote:

We recently moved onto Blackboard's SaaS offering (aka "Ultra") and random users are telling us it times out of them. While I suspect this is an issue of opening the app, letting it sit for 2 hours, and then noticing their session went away (which should re-auth as the TGT is still valid on our end).


Anyone else seen this? How'd you fix it? Our TGT/ST lifetimes are as-delivered default.


Thanks,


Michael Holstein CISSP

Mgr. Network  & Data Security

Cleveland State University

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