I'm focusing on solving identity management across the enterprise. After reading many google search results which is about LDAP and identity management solutions. I decided deploy FreeIPA in my company. It's the best choice until now. My purpose is to store all the Linux user account on the same server. And I could apply some identity management policy (Min length of passwd or expiring date). I tried to install it and configure. But I got a lot of questions and errors. Have anybody ever done this before? FreeIPA is not my final decision. If you guys have better ideas, please let me know.