This is what a Denial of Service attack looks like...

[Tiberius]

oh man i cant compare to you. Did you studied computers?

Three years studying a Computer Science BSc. Two years studying a Information Security MSc. Now I work as a penetration tester, so hacking is my entire job.

also i tried to manual SQL some sites,but when i found the admin pass and username i didnt found the login.

Be careful; unless you've got permission to go fucking around with sites, this kind of action is illegal. If you want to mess around with hacking, either set up your own box, or use sites like Hack This Site.

But i think that atheistforums doesnt have any vuln.? Or you can always check with http://www.acunetix.com/

Atheist Forums doesn't have any vulnerabilities that I know about. I regularly update the server software, and SSH access is tightly controlled. I run scans with Nessus to check for vulnerabilities I've missed.

but again in the end,who is so stupid to even ddos or dos this site?

People out for 15 minutes of fame? We got DoS'ed before on our old server, which was pathetically powerless compared to our current setup. This was a far more intense DoS attack and it didn't really take the site down; it just made it a bit slow. We run nginx instead of Apache, so it can handle massive amounts of requests. If we were still on Apache, the entire server would have probably fallen over.