I have two websites lets say website1 and website2. Website1 is a corporate portal and it is in php5 and mysql. Website2 is a LMS system and it is in Drupal7, Moodle2 and Mysql. Moodle uses in Website2 is 15-20% only(for course/packages) and rest 80% is in Drupal.
Now, i am planning to skip login for website2 as soon as user login into Website1.
Note: Website1 and Website2 is hosted on different server.