i wanna control the multiple login for the particular user.
for example: if one user (user234) shared his password to some persons by mistake. due to tat many persons are logged in with same user name (user234). if others are logged in means tat original user are getting logged out automatically. I should not allow others to login except original user. wat are all steps i have to do....how to block others to login instead of changing passwd for the user234.
thanks in advance