Web Filtering Capabilities and User Wise restrictions instead of IP Wise..!

Hi,

I used Untangle sometime back, but didn't get chance to get in depth and know this better.
Now I have a requirement to get this started again.

Tried ClearOS, but seen little challenges in Web filtering, it wont have categories for Web blocking (In Free version I think :)

So, Here my question is I have 100 user network., Most of the user are running on Thin clients, where users will be loggedin in single OS having single IP. Each user from different department and different levels.

I need to block websites user wise as well IP wise.

and I am planning to remove Windows AD Server and setup LDAP., will Untangle supports AD and LDAP?

Please guide..


Thanks,
Prakash