LL::NG can act as an CAS server, that can allow to federate LL::NG with:
LL::NG is compatible with the CAS protocol versions 1.0 and 2.0. This protocol does not define any attributes exchange mechanism, so only authentication is managed.
In the Manager, go in General Parameters » Issuer modules » CAS and configure:
On.^/cas/ unless you have change Apache portal configuration file.
$authenticationLevel > 2
<IfModule mod_rewrite.c> RewriteEngine On RewriteRule ^/cas/.* /index.pl </IfModule>
Then go in Options to define:
CAS login is not set, it uses General Parameters » Logs » REMOTE_USER data, which is set to uid by default