[development] Single signon question

["Roberto Gorjão"]

> Which module is capable to do this (SSO), probably you mean the core
> capabilities to share user tables ? And how fix the multiple "uid" already
> registered on multiple sites by the same users ?

Paolo,

1- As someone said, you should really put this kind of questions to the
support list.
2- Google is your friend and so is the search field on Drupal site.
3- The module capable of doing "SSO" is called, not surprisingly, "SSO"
and you may find it at http://drupal.org/project/sso
4- Try also this module -- User Import
(http://drupal.org/project/user_import) -- to the second part of your
question.

HTH.

Roberto