Authentication is such a general problem, which most websites have to implement. There are a few commercial solutions, but all lack sufficient functionality to customize the registration process. Therefore, I am looking for an open-source alternative. I am using PHP and with PostgreSQL as database, but as far as I understand one could utilize authentication solutions using other technologies and integrate them into our site in various ways. Therefore, I am looking for such solutions in any technology apart from those requiring Microsoft infrastructure... I would prefer Open Source solution, which have already implemented the following features:Has password recovery procedureUsername is the email address of the userHas Remember me functionailty (meaning that the user is logged inautomatically without seeing the login page)email address verificationGoogle has gotten me nowhere on this and neither a search on this site...
Open source login solution
linux;authentication;open source
Maybe one of these is of use for you: opauth to interface with authentication providers or uLogin for adding secure login and authentication capabilities. You would be able to develop the specifics on your own (remember me ...) but make a great use of proven basics.