Plugin to CASify your Redmine installation.
Tested with Redmine 2.2.x, 2.3.x, 2.4.x and 2.5.x but it should work fine with Redmine 2.x and possibly 1.x. We use CASino as CAS server, but it might work with others as well.
plugins
directory as redmine_cas
If your installation has no public areas ("Authentication required") and you are not logged in, you will be redirected to the CAS-login page. The default login page will still work when you access it directly (http://example.com/path-to-redmine/login).
If your installation is not "Authentication required", the login page will show a link that lets you login with CAS.
The sessions have to be stored in the database to make Single Sign Out work. You can achieve this with a tiny plugin: redmine_activerecord_session_store
By enabling this setting, successfully authenticated users will be automatically added into Redmine if they do not already exist. You must define the attribute mapping for at least firstname, lastname and mail attributes for this to work.
This redmine plugin is currently maintained and funded by nine.