hi there. i need ur opinion. fyi, i'm on the way to establish a new web-application, php-based app and now under alpha-stage. i wanna install the firewall on my site, that will produce error 403 on blocked countries. only some or whitelisted countries are allowed to reach that site, others will parmenantly blocked. ddos attack, the final attack for hackers after searching for security holes and found nothing and of course, this will burn that site. i just wanna know some valueable script for telling me if some kind of ddos attack executed to my site. sql injection, the powerful skill from hackers, to hack and deface a site effectively. i need ur suggestion to avoid that. thanks for ur help, appreciate that.