In fact, I use CP only for wireless user. Then, I just need to send a email for a user that user wired network.
I'll try to explain. I have a wired and wireless network for my company. I use PF and Cp only for external people of my company. For some security policies, I need to change the CP password everyday and send the new password to the reception email. Then, when a external person come to the reception, the receptionist can give the new password of the day.
To do this, did I realy need a external mysql database? can't I create and cron job to launch a scrit to change the local database?