Hi all,I am a new member here and do not know much about Xisto. However with regard to the first post in this issue, I would like to point out that the servers (both MySQL as well as Tomcat) went down because users had access to these servers, I dare say, without authentication. There are various methods (which I am sure that you are aware of) to restrict a client or validate his inputs at the client side itself before the database or the web server gets accessed. Implementing these methods may secure the servers in future.Regards.