A heads up to mods on this site...what is happening to arownaclub.ca could happen here too...
Arowanaclub.ca admin: thanks for the notice. So, is this a DNS attack or some kind of variant of one?About an hour ago, our monitoring systems alerted us to a very high load on the web server hosting arowanaclub.ca. After investigating the issue, we determined that your site was experiencing a HUGE influx of traffic. You can actually see this number at the bottom of your forums - Most users ever online was 4,181 Today at 5:35 PM.
To protect other customers on the server, we were forced to temporarily suspend your account until the traffic stopped. We are seeing this happen a lot lately with vBulletin forums and it appears to be some sort of botnet scanning for vulnerabilities in the software. After about an hour of hammering your site, the traffic disappeared and we were able to bring your site live again.
No. This was literally just 5000 machines loading your site at once. It's very odd but we are seeing this same pattern on many vb installations right now.... You're not the only one
Unfortunately, we had to suspend it again as the attack continued. At this point, we must do a 12 hour suspension in order to ensure other customer sites aren't affected.