Authentification & traffic management guru

[eluser]sikkle[/eluser]
I'm wondering if someone got some way maybe i didn't know already include in example with Ci, FreackAuth or Db_session.

Some people got some way to start managing BANNED ip user from your website ?

Some people got some way to start managing not more then 20 actions in one minute from a user ?

Some people got some way to handle maximum try to login way ?


This is general but i'm windering if i miss something BIG and just receive a link to go read or if it's more and need to have a though about it.

thanks.