Hello,
I am looking for some information / guidance on managing multiple sites / systems / users. At the moment we have several sites (some of them Drupal, some are bespoke web applications) we also have a 'central' site that holds all our users and their details. All of the sites require users to login - they are always users that we have stored at our central site, however, they all have a different username / password for every single system. I am looking at re-developing the 'central' site and know there are a few more sites / systems in the pipeline (again, these will be used by a few users that we have stored centrally).
Ideally I would like our central site to hold information on all our users, administrators could set permissions for other sites from this central site. I want users to use a single username and password for all sites / systems, these could then authenticate and authorise the details with the central site. Most will be Drupal based, however, a few will be custom systems.
Basically I am looking for your opinions on the best way of achieving this - I am happy coding the solution, I would just like some feedback on the possible solutions!