(adsbygoogle = window.adsbygoogle || []).push({}); can you please Teach me how ? this is a simple webiste with: Chatroll chatbox , and ustream only and some youtube videos ..

There are programs that let you find vulnerabilities in sites but then you must know a bit of extra information.

Hackforums has a bit of information on it though it is helpful if you know some sort of coding or at least know how to read and translate what it says so you can do what you wish to do with it once you have access, unless shutting it down permanently is your plan.

Can i get those programs Here ? in our forum ?
i just want SHUTDOWN For their website atleast and Hour or Day if possible ..
What is that kind Of Program i will use ?
and Where can i get it ?

what do you mean simple , its software exploits that allow you full access to some files write access :shh: , say they have a video player and it has a login function for users on that site try looking in that source code for something that can be used for XSS

The easiest way would be just to take it offline buy ddosing it using Hoic or Loic (Noob friendly) you really should look more into slowloris ddos tool which is more advanced and only available for linux but it does some damage when used correctly, but be careful using Hoic and Loic becuase if you dos them too quickly you end up dosing your self i.e your router.

scan the website for an admin login with this: You must login or register to view this content.
Use the admin login that the website found. (if it did find one)
to see if it is vulnerable, as the user type: '
as the password type: =
if it brings you to an error page, that means its vulnerable, and follow the steps below. If it says invalid login, or anything similar, its not vulnerable and do no follow these steps.

Steps:
As the username for the login type: admin
as the password type: 'or'=" (type it exactly as I did. the whole word)
It should let you in.